275 results on '"Ribeiro, Lucinéia"'
Search Results
102. Nociceptive and histomorphometric characteristics of median nerves of rats with obesity induced by monosodium glutamate
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Gresele Coradini, Josinéia, Karvat, Jhenifer, Meire Costa Brancalhão, Rose, de Fátima Chasko Ribeiro, Lucinéia, Bonfleur, Maria Lúcia, Bertolini, Gladson Ricardo Flor, Gresele Coradini, Josinéia, Karvat, Jhenifer, Meire Costa Brancalhão, Rose, de Fátima Chasko Ribeiro, Lucinéia, Bonfleur, Maria Lúcia, and Bertolini, Gladson Ricardo Flor
- Abstract
AIMS: To compare nociception and, histomorphometrically, the transverse section of peripheral nerves (median) of Wistar rats submitted to obesity model induced by monosodium glutamate with control animals. METHODS: Fourteen Wistar rats divided into control and obese groups were used. During the five first days since birth the rats from obese group received a daily subcutaneous injection of monosodium glutamate (4 g/kg body weight/day), while the control group received hypertonic saline (1.25 g/kg body weight/day). Nociception was evaluated by the withdrawal threshold of the limb, using digital analgesymeter type Von Frey, with the stimulus given in the palmar region of the right hind paw. The first assessment was carried out about 20 days before euthanasia, and the second assessment was performed on the day before euthanasia. Subsequently the median nerve was dissected in the elbow region and processed with cross sections for histological analysis. The analyzed variables were: number of axons per field; axons, fibers and myelin sheath diameters, and G coefficient. The results were analyzed using the t test for independent samples and paired t test, with a significance level of 5%. RESULTS: Fourteen rats were assessed, being seven of the obese group and seven of control group. The evaluation of nociception showed that the animals of the obese group had lower withdrawal threshold. For histomorphometric data, the results showed no significant differences between the two groups. CONCLUSIONS: The obese animals showed lower nociceptive threshold, however, there were no morphometric differences of the median nerves between animals subjected to the model of obesity induced by monosodium glutamate and the control group.
- Published
- 2014
103. Susceptibility of the Bombyx mori cardia cells to Nucleopolyhedrovirus, multiple subgroup, BmMNPV
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Ribeiro, Lucinéia de Fátima Chasko, Brancalhão, Rose Meire Costa, Torquato, Ednéia Fátima Brambilla, and Fernandez, Maria Aparecida
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- 2009
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104. Detection of Contamination and Analysis of Vertical Transmission of BmNPV in Eggs and Moths of Bombyx mori
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Saez, Cláudia Regina das Neves, primary, Munhoz, Roxelle Ethienne Ferreira, additional, Pereira, Naiara Climas, additional, Bignotto, Thaís Souto, additional, Fassina, Verônica Aureliana, additional, Pessini, Graziele Milani, additional, Garay, Laura Beatriz, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, and Fernandez, Maria Aparecida, additional
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- 2014
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105. Effect of interferential current of different amplitude-modulated frequencies, on threshold and number of accommodations on healthy painless individuals
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Araújo, Beatriz Gavassa de, primary, Filipin, Karina Maria, additional, Pasqualli, Tathiane, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, and Bertolini, Gladson Ricardo Flor, additional
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- 2014
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106. Effects of Low-Level Laser Therapy, 660 nm, in Experimental Septic Arthritis
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Araujo, Bruna Formentão, primary, Silva, Lígia Inez, additional, Meireles, Anamaria, additional, Rosa, Camila Thieimi, additional, Gioppo, Nereida Mello da Rosa, additional, Jorge, Alex Sandro, additional, Kunz, Regina Inês, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, and Bertolini, Gladson Ricardo Flor, additional
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- 2013
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107. Avaliação de parâmetros histomorfométricos em sóleos de ratos submetidos à remobilização por salto em meio aquático
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Silva, Lígia Inez, primary, Meireles, Anamaria, additional, Nascimento, Cassiane Merigo do, additional, Rocha, Bruno Pogorzelski, additional, Rosa, Camila Thieime, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, and Bertolini, Gladson Ricardo Flor, additional
- Published
- 2013
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108. Treinamento aeróbico prévio à compressão nervosa: análise da morfometria muscular de ratos
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Artifon, Elisangela Lourdes, primary, Silva, Lígia Inêz, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, and Bertolini, Gladson Ricardo Flor, additional
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- 2013
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109. Mobilização neural aplicada em diferentes locais sobre a compressão do nervo isquiático de ratos Wistar.
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Ribeiro Bernardino, Giovanni, Pelissari, Daniele, Peretti, Ana Luiza, Martin Kakihata, Camila Mayumi, Baretta, Vinicius, Malanotte, Jéssica Aline, Costa Brancalhão, Rose Meire, Chasko Ribeiro, Lucinéia de Fátima, and Flor Bertolini, Gladson Ricardo
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ANIMALS ,DENERVATION ,EXTREMITIES (Anatomy) ,RATS ,NERVE expansion ,SCIATIC nerve ,FUNCTIONAL assessment ,NOCICEPTIVE pain ,ANATOMY - Abstract
Copyright of ConScientiae Saúde is the property of Nove de Julho University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2016
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110. Evaluation of longitudinal ligament of the spine of Wistar rats in an experimental model of Suit therapy.
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Dias Borges, Marcia Cristina, Kamada Errero, Tatiane, Thieimi Rosa, Camila, Ribeiro Bernardino, Giovanni, Costa Brancalhão, Rose Meire, Chasko Ribeiro, Lucinéia de Fátima, and Flor Bertolini, Gladson Ricardo
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ANIMAL experimentation ,MATHEMATICAL models ,PHYSICAL therapy ,RATS ,SPINE ,STATISTICS ,THEORY ,DATA analysis ,LONGITUDINAL ligaments ,WEIGHT-bearing (Orthopedics) ,ONE-way analysis of variance - Abstract
Copyright of Fisioterapia e Pesquisa is the property of Universidade de Sao Paulo, Faculdade de Medicina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2016
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111. Evaluation of the toxic effect of insecticide chlorantraniliprole on the silkworm <i>Bombyx mori</i> (Lepidoptera: Bombycidae)
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Munhoz, Roxelle Ethienne Ferreira, primary, Bignotto, Thaís Souto, additional, Pereira, Naiara Climas, additional, Saez, Cláudia Regina das Neves, additional, Bespalhuk, Rafaela, additional, Fassina, Verônica Aureliana, additional, Pessini, Graziele Milani, additional, Baggio, Mayarha Patrícia Dequigiovanni, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, Mizuno, Shunsuke, additional, Aita, Willian Shigeaki, additional, and Fernandez, Maria Aparecida, additional
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- 2013
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112. Nociceptive and Histomorphometric Evaluation of Neural Mobilization in Experimental Injury of the Median Nerve
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Marcioli, Marieli Araujo Rossoni, primary, Coradini, Josinéia Gresele, additional, Kunz, Regina Inês, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Brancalhão, Rose Meire Costa, additional, and Bertolini, Gladson Ricardo Flor, additional
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- 2013
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113. Avaliação do trofismo muscular de sóleos de ratos wistar após compressão nervosa e tratamento com corrente de alta voltagem
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Bertolini, Gladson Ricardo Flor, primary, Artifon, Elisangela Lourdes, additional, Silva, Lígia Inez da, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, and Brancalhão, Rose Meire Costa, additional
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- 2012
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114. Efeitos do ultrassom terapêutico associados ao alongamento estático sobre parâmetros histomorfométricos longitudinais de sóleos imobilizados de ratos
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Artifon, Elisangela Lourdes, primary, Ferrari, Deisi, additional, Cunha, Daniela Martins, additional, Nascimento, Cassiane Merigo, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, and Bertolini, Gladson Ricardo Flor, additional
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- 2012
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115. Polymorphism of alpha s1-casein gene in a dairy goat herd in the southeastern region of Brazil
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Soares, Maria Amélia Menck, primary, Rodrigues, Marcelo Teixeira, additional, Mognol, Giuliana Patrícia, additional, Ribeiro, Lucinéia de Fátima Chasko, additional, Silva, José Luis da Conceição, additional, and Brancalhão, Rose Meire Costa, additional
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- 2009
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116. AVALIAÇÃO DE SÓLEOS DE RATAS WISTAR OOFORECTOMIZADAS E REMOBILIZADAS EM MEIO AQUÁTICO.
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Inez Silva, Lígia, Thieime Rosa, Camila, Meireles, Anamaria, Pogorzelski Rocha, Bruno, Rondon Soares, Carmen Lúcia, de Fátima Chasko Ribeiro, Lucinéia, Costa Brancalhão, Rose Meire, and Flor Bertolini, Gladson Ricardo
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- 2015
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117. Morphology of soleus and tibial anterior muscles of Wistar rats immobilizated and remobilizated in aquatic environment.
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Inês Kunz, Regina, Gresele Coradini, Josinéia, Inez Silva, Lígia, Martin Kakihata, Camila Mayumi, Costa Brancalhão, Rose Meire, Flor Bertolini, Gladson Ricardo, and de Fátima Chasko Ribeiro, Lucinéia
- Abstract
Copyright of ConScientiae Saúde is the property of Nove de Julho University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
118. Morfologia dos músculos sóleo e tibial anterior de ratos Wistar imobilizados e remobilizados em meio aquático.
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Inês Kunz, Regina, Gresele Coradini, Josinéia, Inez Silva, Lígia, Martin Kakihata, Camila Mayumi, Costa Brancalhão, Rose Meire, Flor Bertolini, Gladson Ricardo, and de Fátima Chasko Ribeiro, Lucinéia
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CALF muscle physiology ,TIBIA physiology ,ANALYSIS of variance ,ANIMAL experimentation ,AQUATIC exercises ,RATS ,SWIMMING ,DATA analysis software ,SKELETAL muscle - Abstract
Copyright of ConScientiae Saúde is the property of Nove de Julho University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
119. EVALUATION OF HISTOMORPHOMETRIC PARAMETERS OF RAT'S SOLEUS, SUBMITTED TO JUMP REMOBILIZATION IN THE AQUATIC ENVIRONMENT.
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Silva, Lígia Inez, Meireles, Anamaria, do Nascimento, Cassiane Merigo, Rocha, Bruno Pogorzelski, Rosa, Camila Thieime, Chasko Ribeiro, Lucinéia de Fátima, Costa Brancalhão, Rose Meire, and Flor Bertolini, Gladson Ricardo
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SOLEUS muscle ,IMMOBILIZATION stress ,LABORATORY rats ,MUSCLES ,EXERCISE - Abstract
The article presents a study which evaluated the transverse and longitudinal histomorphometric parameters of the soleus muscle fibers of rats held still in shortened position and then subjected to remobilization by jumping in water. It observes that the muscular tissue is able to react to stimuli such as immobilization that promotes hypotrophy and changing muscle performance, and it is necessary to find methods that seek to reverse these harmful effects after the immobilization stage.
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- 2013
120. Nociceptive and Histomorphometric Evaluation of Neural Mobilization in Experimental Injury of the Median Nerve.
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Rossoni Marcioli, Marieli Araujo, Coradini, Josinéia Gresele, Kunz, Regina Inês, de Fátima Chasko Ribeiro, Lucinéia, Costa Brancalhão, Rose Meire, and Flor Bertolini, Gladson Ricardo
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MEDIAN nerve injuries ,CARPAL tunnel syndrome ,ENTRAPMENT neuropathies ,EUTHANASIA ,NOCICEPTORS - Published
- 2013
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121. EFFECTS OF THERAPEUTIC ULTRASOUND ASSOCIATED WITH STATIC STRETCHING ON LONGITUDINAL HISTOMORPHOMETRIC PARAMETERS OF IMMOBILIZED SOLEUS OF RATS.
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Artifon, Elisangela Lourdes, Ferrari, Deisi, Martins Cunha, Daniela, Merigo Nascimento, Cassiane, de Fátima Chasko Ribeiro, Lucinéia, and Bertolini, Gladson Ricardo Flor
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STRETCH (Physiology) ,ULTRASONIC therapy ,MUSCLES ,SKELETAL muscle ,EXERCISE - Abstract
The article discusses the study comparing the use of therapeutic thermal and non thermal ultrasound in association with stretching, to remobilize the soleus muscle of rats submitted to muscular shortening position, concerning the longitudinal histomorphometric aspects of the muscles. The study found the insufficiency of stretching in reversing the effects of immobilization. The dose of 0.5 W/square centimeter (cm
2 ) in therapeutic ultrasound helped in muscle length recovery.- Published
- 2012
122. Curcumin (Curcuma longa) Supplementation Associated with Low-Dose Prednisone Improves Morphofunctional, Histomorphometric and Postsynaptic Aspects of the Rectus Femoris Muscle in Old Female Wistar Rats with Experimental Rheumatoid Arthritis.
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Barbosa Retameiro, Ana Caroline, de Toni Boaro, Carolina, Saraiva Rodriguez, Diego Francis, Stein, Taciane, Casagrande dos Santos, Aldair, Pimentel Neto, Jurandyr, Polican Ciena, Adriano, Miranda Torrejais, Márcia, Meire Costa, Rose, Flor Bertolini, Gladson Ricardo, and de Fátima Chasko Ribeiro, Lucinéia
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MOTOR ability , *BONE regeneration , *DATA analysis , *QUALITATIVE research , *RHEUMATOID arthritis , *NEUROPHYSIOLOGY , *FISHER exact test , *KRUSKAL-Wallis Test , *PREDNISONE , *DESCRIPTIVE statistics , *NEUROMUSCULAR system , *IMMUNOHISTOCHEMISTRY , *RATS , *EXPERIMENTAL design , *CURCUMIN , *RECTUS femoris muscles , *ANIMAL experimentation , *TURMERIC , *STATISTICS , *DATA analysis software , *DIETARY supplements , *GRIP strength - Abstract
Objective. Rheumatoid arthritis (RA) is an inflammatory disease. Here we analyzed the effects of the supplementation with curcumin (CM) in a treatment with prednisone (PD) on hind paw' functionality and rectus femoris histomorphometric and immunohistochemical aspects. Methods. Thirty female 18 months-old Wistar rats were divided in six groups: control (CG), arthritis (AG), arthritis CM (AC), arthritis PD low-dose (APLD), arthritis PD high-dose (APHD) and arthritis PD low-dose and CM (APLDC). The experimental RA was induced by a complete Freund's adjuvant injection into the knee joint cavity. PD (2 mg/kg/day and 10 mg/kg/day) and CM (C21H20O6) (100 mg/kg/day) were used as treatment, using gavage method. Functionality, histomorphometric and immunohistochemical evaluations were performed in the hind paw and in the rectus femoris muscle. Generalized mixed models was used for statistical analysis. Statistical significance was set as P-value 0.05. Results. AG had loss of grip strength, motor function and increase in nociceptive threshold (p < 0.0001). AC and APLDC had positive effects on grip strength and motor function. Histomorphometry revealed degenerative lesions in AG muscular tissue with circulatory disorders, changes in muscle fibers, connective tissue and muscle spindle, major total collagen quantity and smaller perimeter in the postsynaptic region (p < 0.0001). APLDC showed the best recovery in these aspects (p < 0.001). Conclusions. CM supplementation in the treatment with 2 mg/kg/day of PD restored muscle strength, motor function, histomorphometrical and postsynaptic aspects in old female rats with experimentally induced RA. [ABSTRACT FROM AUTHOR]
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- 2024
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123. Effect of Therapeutic Ultrasound on the Recovery of the Tibialis Anterior Muscle in Remobilized Wistar Rats after a Period of Immobilization: An Analysis Using the Pathological Index.
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Kufner Meassi, Ana Julia, de Souza Oliveira, Caroline, Pedroso de Oliveira, Giulia, Novais, Juliana Mayumi, Sotana Rodrigues, Rafaela, de Fátima Chasko Ribeiro, Lucinéia, Artioli, Dérrick Patrick, and Flor Bertolini, Gladson Ricardo
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BIOLOGICAL models , *ANKLE , *RESEARCH funding , *TIBIALIS anterior , *TREATMENT effectiveness , *RATS , *KNEE joint , *CONVALESCENCE , *ANIMAL experimentation , *ULTRASONIC therapy , *THERAPEUTIC immobilization , *MUSCULAR atrophy , *PLANTARFLEXION , *PHYSICAL mobility , *RANGE of motion of joints - Abstract
Background. Prolonged joint immobilization causes muscle hypotrophy and joint stiffness, which worsen as the immobilization time increases. Muscle remobilization is essential to restore muscle mass and activity as soon as possible. There are various treatments for muscle remobilization, but therapeutic ultrasound has proved to be a promising technique, with thermal and athermic actions, generating possibilities for increasing tissue extensibility and cell metabolism, helping with the anabolic effects of static stretching. Objective. To evaluate the histopathological changes in the tibialis anterior muscle of Wistar rats after remobilization using therapeutic ultrasound, using the histopathological index. Methods. 21 male Wistar rats were used, divided into 3 groups (n = 7): immobilization group, immobilization and free remobilization group, immobilization and remobilization with ultrasound group. Immobilization was carried out with the knee flexed at 120° and total ankle plantiflexion for three weeks. Ultrasound was used at a frequency of 1.0 MHz with an intensity of 0.5 w/cm², lasting 2 minutes on the knee and a further 2 minutes on the ankle. Analyses were carried out using the histopathological index to measure the level of alterations and lesions in the muscle tissue, classifying them as severe, moderate or mild. Conclusions. It was concluded that the anabolic stimulus of ultrasound was favorable to the trophic recovery of muscle tissue. [ABSTRACT FROM AUTHOR]
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- 2024
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124. Peripubertal Exposure to Glyphosate-Based Herbicides Promotes Histopathological Impairment in the Structure of the Diaphragm Muscle of C57BL/6 Mice.
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Zazula, Matheus Felipe, Marca, Ana Paula, de Campos Oliveira, Mylena, Barbosa, Ariadne, Bonfleur, Maria Lúcia, Chasko Ribeiro, Lucinéia de Fátima, and Torrejais, Márcia Miranda
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MUSCLE anatomy , *HERBICIDES , *DIAPHRAGM (Anatomy) , *FLUORESCENT dyes , *PUBERTY , *RESEARCH funding , *BODY weight , *DESCRIPTIVE statistics , *MYONEURAL junction , *MICE , *ESTERASES , *ANIMAL experimentation , *WATER , *COLLAGEN , *BENZOPYRANS , *GLYPHOSATE , *MUSCLES - Abstract
Introduction. Glyphosate is an organophosphate herbicide most used in Latin America, with multisystemic effects, including the respiratory system. In this sense, the objective of this research was to analyze the muscle fibers and neuromuscular junctions (NMJs) of the diaphragm muscle of adult mice exposed to the glyphosate-based herbicide in the peripubertal period. Methods. Twelve male mice were used, divided into a control group (CTL, n = 6), which received water and a glyphosate-based herbicide group (GBH, n = 6), which received 50 mg/Kg/day of Roundup®, both by gavage from 30 to 60 days. At 150 days, the animals were euthanized, and the diaphragm was collected for analysis of the muscle fibers through hematoxylin-eosin, Masson's trichrome and Picrossirius Red and the NMJs through the nonspecific esterases reaction. Results. Rounded fibers, hypereosinophilic sarcoplasm and enlarged nuclei were found predominantly in GBH. A reduction in body weight, an increase in muscle fiber morphometry, an increase in type III collagen, a decrease in the overlapping of type I and III collagen, and an increase in the area and greater diameter of the NMJs in GBH were observed. Conclusions. Peripubertal exposure to glyphosate-based herbicides showed morphological changes characteristic of muscle degeneration and altered the morphometry of muscle fibers and NMJs of the diaphragm of adult mice. [ABSTRACT FROM AUTHOR]
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- 2024
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125. Nociceptive and Neuronal Evaluation of the Sciatic Nerve of Wistar Rats Subjected to Compression Injury and Treated with Resistive Exercise
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Sobral Antunes, Juliana, Lovison, Keli, Karvat, Jhenifer, Luiza Peretti, Ana, Vieira, Lizyana, Hideaki Higuchi, Guilherme, Meire Costa Brancalhão, Rose, de Fátima Chasko Ribeiro, Lucinéia, and Ricardo Flor Bertolini, Gladson
- Abstract
Background. To investigate the climb stairs resistance exercise on nociception and axonal regeneration in the sciatic nerve of rats. Methods. 24 Wistar rats were divided: control group (CG—no injury), exercise group (EG—no injury with physical exercise), lesion group (LG—injury, but without exercise), and treated group (LEG—injury and physical exercise). LG and LEG were subjected to sciatic nerve compression with hemostat. From the 3rd day after injury began treatment with exercise, and after 22 days occurs the removal of a nerve fragment for morphological analysis. Results. Regarding allodynia, CG obtained values less than EG (p=0.012) and larger than LG and LEG (p<0.001). Histological results showed that CG and EG had normal appearance, as LG and LEG showed up with large amounts of inflammatory infiltration, degeneration and disruption of nerve fibers, and reduction of the myelin sheath; however LEG presented some regenerated fibers. From the morphometric data there were significant differences, for nerve fiber diameter, comparing CG with LG and LEG and comparing axon diameter and the thickness of the myelin of the CG to others. Conclusion. Climb stairs resistance exercise was not effective to speed up the regenerative process of axons.
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- 2016
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126. Articular mobilization promotes improvement in functional and inflammatory parameters in a gouty arthritis model.
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Moha Hoss, Iranilda, de Araujo Pradal, Lilian, da Silva Leal, Taciane Stein, Flor Bertolini, Gladson Ricardo, Meire Costa, Rose, and de Fátima Chasko Ribeiro, Lucinéia
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GOUT diagnosis , *ADVERSE health care events , *PATIENT experience , *LEUKOCYTE count , *SYNOVIAL fluid , *INFLAMMATION , *INTRA-articular injections , *CELL migration , *GRIP strength , *ARTHRITIS - Abstract
Objective: Gouty arthritis is characterized by painful inflammation due to the deposition of monosodium urate crystals in joint tissues. Despite available treatments, many patients experience ineffective management and adverse effects. This study evaluated a manual therapy protocol involving passive joint mobilization at the peak of inflammation in a gouty arthritis model using functional and inflammatory parameters. Methods: Twenty male Wistar rats, 12 weeks old, were divided into two groups (n=10 each): Gouty Arthritis and Control Groups, which were further subdivided into treated and untreated groups (n=5 each). The Gouty Arthritis Group received intraarticular knee injection of 50μL of monosodium urate crystals, while the Control Group received 50μL of phosphate buffered saline. The treatment involved a 9-minutes session of grade III joint mobilization (according to Maitland). Nociception, grip strength, and edema were evaluated before induction (EV0), 7 hours after assessment (EV1), immediately after treatment (EV2), and 1 hour after treatment (EV3). The animals were euthanized, and synovial fluid was collected to analyze leukocyte migration. Results: The model mimicked the signs of the Gouty Arthritis Group, with a decrease in the threshold of nociception and strength and an increase in edema and leukocyte count. The mobilization protocol significantly increased the nociceptive threshold and grip strength and reduced edema; however, it did not reverse the increase in leukocyte count. Conclusion: Our results suggest that mobilization promotes analgesia and may modulate the inflammatory process owing to reduced edema and subtle attenuation of cell migration, which contributes to strength gain. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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127. Análise histomorfométrica e estresse oxidativo do músculo sóleo de ratas wistar ooforectomizadas e submetidas à vibração mecânica
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Peretti, Ana Luiza, Bertolini , Gladson Ricardo Flor, Ribeiro, Lucinéia de Fátima Chasko, Ribeiro , Lucinéia de Fátima Chasko, Nassar, Patrícia Oehlmeyer, and Menezes, Sara Lucia Silveira de
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Musculoesquelético ,Skeletal muscle ,CIENCIAS BIOLOGICAS ,Vibração de corpo inteiro ,Privação hormonal ,Hormonal deprivation ,Whole body vibration - Abstract
Submitted by Rosangela Silva (rosangela.silva3@unioeste.br) on 2018-05-23T14:17:21Z No. of bitstreams: 2 Ana Luiza Peretti.pdf: 1017733 bytes, checksum: 2601a64ef7067e3a163ffd4705983cac (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2018-05-23T14:17:21Z (GMT). No. of bitstreams: 2 Ana Luiza Peretti.pdf: 1017733 bytes, checksum: 2601a64ef7067e3a163ffd4705983cac (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-02-23 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES During menopause, there is a decrease in the production and secretion of the estrogen hormone, which may act on the pathophysiology of inflammatory and chronic-degenerative diseases, many of which can cause changes in muscle tissue. Seeking to prevent disturbances in these tissues, the use of mechanical vibrations has been increasing, aiming to promote the gain of muscle strength. In this way, the objective was to analyze and compare the effects of the wholy body vibration treatment at different periods in the muscle tissue of oophorectomized Wistar rats, a model that simulates hormonal deprivation. For this, 72 animals were randomized into the Pseudoophorectomy (GP) and Oophorectomy (GO) groups. After 60 postoperative days, the animals were submitted to therapeutic interventions and divided into eight subgroups: animals that did not undergo any treatment and euthanized after four (GP4 and GO4) and eight (GP8 and GO8) weeks and animals treated during the same periods (GPT4, GOT4, GPT8 and GOT8). The treatment consisted of the use of vibratory platform, using 60Hz frequency and duration of 10 minutes, three times a week for four or eight weeks. At the end of the treatments, the animals were euthanized and the soleus muscles were collected and processed. The data were analyzed for normality and analysis of the three-way variance, adopting a significance level of 5%. In the morphological analysis, the oophorectomized groups, especially GO8, presented muscular hypotrophy and the groups that performed the treatment demonstrated larger fibers than those that did not, as well as GOT4 and GOT8 resembled the animals of the pseudo-oophorectomy groups. Regarding the cross-sectional area, GPT4 had values higher than GP4 and GPT8 whereas GO8 was lower than GO4, GP8 and GOT8; for larger and smaller diameters of muscle fibers, animals that did not undergo oophorectomy had higher values than those who underwent the procedure, as well as those who performed the treatment in relation to those who did not. For the number of nuclei/fiber, GP4 and GO4 had higher mean values in relation to GPT4 and GOT4 and, when compared to time, the number was higher in four weeks than in eight. There was no statistical difference between the number of capillary/fiber and the percentage of connective tissue. In relation to oxidative stress, there was an increase in lipoperoxidation in the GO8 and GOT8 groups, with the treatment not being effective in reversing this damage; for the other SOD, CAT and ChE variables there was no significant difference. For groups of only four weeks, GO4 presented a neuromuscular junction area smaller than GP4, but GOT4 matched GPT4. For the larger diameter of the junctions, GO4 also presented different ones than the others, however, the GOT4 animals were larger than GPT4. There was predominance of oxidative fibers in the soleus muscle. To sum up, this work can be attributed to the hormonal deprivation muscular hypotrophy in the oophorectomized groups, mainly in GO8, and the reversion of this process and muscular hypertrophy in the groups that performed the treatment with whole body vibration. Durante a menopausa, há um decréscimo na produção e secreção do hormônio estrogênio, que pode atuar na fisiopatologia de doenças inflamatórias e crônico-degenerativas, muitas das quais podem provocar alterações no tecido muscular. Buscando prevenir perturbações nesses tecidos, o uso de vibrações mecânicas vem crescendo, visando promover o ganho de força muscular. Dessa forma, este trabalho objetivou analisar e comparar os efeitos do tratamento com plataforma vibratória, em diferentes períodos, no tecido muscular de ratas Wistar ooforectomizadas, modelo que simula a privação hormonal. Para tal, 72 animais foram randomizados nos grupos Pseudooforectomia (GP) e Ooforectomia (GO). Decorridos 60 dias do pós-operatório, os animais foram submetidos a intervenções terapêuticas e divididos em oito subgrupos: animais que não realizaram nenhum tratamento e eutanasiados, após quatro (GP4 e GO4) e oito (GP8 e GO8) semanas, e animais tratados durante os mesmos períodos (GPT4, GOT4, GPT8 e GOT8) semanas. O tratamento consistiu no uso de plataforma vibratória, utilizando frequência de 60Hz e duração de 10 minutos, três vezes por semana, durante quatro ou oito semanas. Acabados os tratamentos, os animais foram eutanasiados e os músculos sóleos coletados e processados. Os dados foram analisados quanto à normalidade e análise da variância de três vias, adotando-se nível de significância de 5%. Na análise morfológica, os grupos ooforectomizados, especialmente GO8, apresentaram hipotrofia muscular; já os grupos que realizaram o tratamento, revelaram fibras maiores que os que não o realizaram, bem como GOT4 e GOT8 assemelharam-se aos animais dos grupos pseudo-ooforectomia. Em relação à área de secção transversa, GPT4 teve valores maiores que GP4 e GPT8, enquanto que GO8 foi menor que GO4, GP8 e GOT8; para maior e menor diâmetros das fibras musculares, os animais que não passaram pela ooforectomia possuíram valores maiores que os que foram submetidos ao procedimento, bem como os que realizaram o tratamento em relação aos que não o realizaram. Para a relação núcleos/fibra, GP4 e GO4 possuíram médias maiores em relação à GPT4 e GOT4 e, ao comparar-se o tempo, a relação é maior, em quatro semanas do que em oito. Não houve diferença estatística entre a relação capilares/fibra e porcentagem de tecido conjuntivo. Em relação ao estresse oxidativo, houve aumento da lipoperioxidação nos grupos GO8 e GOT8, com o tratamento não sendo eficaz na reversão desse dano; para as demais variáveis SOD, CAT e ChE não houve diferença significativa. Para avaliação, apenas dos grupos de quatro semanas, GO4 apresentou área das junções neuromusculares, menor que GP4, porém, o GOT4 igualou-se ao GPT4. Para o maior diâmetro das junções, GO4 também se apresentou diferente dos demais, porém, os animais do GOT4 foram maiores que GPT4. Houve predominância de fibras oxidativas no músculo sóleo. Com este trabalho, pode-se atribuir à privação hormonal a hipotrofia muscular nos grupos ooforectomizados, principalmente, em GO8, e a reversão desse processo e hipertrofia muscular nos grupos que realizaram o tratamento com plataforma vibratória.
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- 2018
128. Sericin as treatment of obesity: morphophysiological effects in obese mice fed with high-fat diet.
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Kunz, Regina Inês, Novi Capelassi, Angélica, Paiva Alegre-Maller, Ana Cláudia, Bonfleur, Maria Lúcia, de Fátima Chasko Ribeiro, Lucinéia, Meire Costa, Rose, and Marçal Natali, Maria Raquel
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OBESITY treatment , *SERICIN , *HIGH-fat diet , *LABORATORY mice , *DRUG efficacy - Abstract
Objective: To investigate the effects of sericin extracted from silkworm Bombyx mori cocoon on morphophysiological parameters in mice with obesity induced by high-fat diet. Methods: Male C57Bl6 mice aged 9 weeks were allocated to one of two groups - Control and Obese, and fed a standard or high-fat diet for 10 weeks, respectively. Mice were then further subdivided into four groups with seven mice each, as follows: Control, Control-Sericin, Obese, and Obese-Sericin. The standard or high fat diet was given for 4 more weeks; sericin (1,000mg/kg body weight) was given orally to mice in the Control-Sericin and Obese-Sericin Groups during this period. Weight gain, food intake, fecal weight, fecal lipid content, gut motility and glucose tolerance were monitored. At the end of experimental period, plasma was collected for biochemical analysis. Samples of white adipose tissue, liver and jejunum were collected and processed for light microscopy analysis; liver fragments were used for lipid content determination. Results: Obese mice experienced significantly greater weight gain and fat accumulation and had higher total cholesterol and glucose levels compared to controls. Retroperitoneal and periepididymal adipocyte hypertrophy, development of hepatic steatosis, increased cholesterol and triglyceride levels and morphometric changes in the jejunal wall were observed. Conclusion: Physiological changes induced by obesity were not fully reverted by sericin; however, sericin treatment restored jejunal morphometry and increased lipid excretion in feces in obese mice, suggesting potential anti-obesity effects. [ABSTRACT FROM AUTHOR]
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- 2020
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129. Ação da vanilina (Vanilla planifolia) sobre a morfologia dos músculos tibial anterior e sóleo após lesão nervosa.
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Peretti, Ana Luiza, Sobral Antunes, Juliana, Lovison, Keli, Kunz, Regina Inês, Gomes Castor, Lidyane Regina, Costa Brancalhão, Rose Meire, Flor Bertolini, Gladson Ricardo, and Chasko Ribeiro, Lucinéia de Fátima
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Objective: To evaluate the action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after peripheral nerve injury. Methods: Wistar rats were divided into four groups, with seven animals each: Control Group, Vanillin Group, Injury Group, and Injury + Vanillin Group. The Injury Group and the Injury + Vanillin Group animals were submitted to nerve injury by compression of the sciatic nerve; the Vanillin Group and Injury + Vanillin Group, were treated daily with oral doses of vanillin (150mg/kg) from the 3rd to the 21st day after induction of nerve injury. At the end of the experiment, the tibialis anterior and soleus muscles were dissected and processed for light microscopy and submitted to morphological analysis. Results: The nerve compression promoted morphological changes, typical of denervation, and the treatment with vanillin was responsible for different responses in the studied muscles. For the tibialis anterior, there was an increase in the number of satellite cells, central nuclei and fiber atrophy, as well as fascicular disorganization. In the soleus, only increased vascularization was observed, with no exacerbation of the morphological alterations in the fibers. Conclusion: The treatment with vanillin promoted increase in intramuscular vascularization for the muscles studied, with proinflammatory potential for tibialis anterior, but not for soleus muscle. [ABSTRACT FROM AUTHOR]
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- 2017
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130. Salto em meio aquático após compressão de nervo isquiático: avaliação nociceptiva e características morfológicas do músculo sóleo de ratos Wistar.
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Malanotte, Jéssica Aline, Kakihata, Camila Mayumi Martin, Karvat, Jhenifer, Brancalhão, Rose Meire Costa, de Fátima Chasko Ribeiro, Lucinéia, and Bertolini, Gladson Ricardo Flor
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Objective: To evaluate the effect of jumping in aquatic environment on nociception and in the soleus muscle of trained and not trained Wistar rats, in the treatment of compressive neuropathy of the sciatic nerve. Methods: Twenty-five Wistar rats were distributed into five groups: Control, Lesion, Trained + Lesion, Lesion + Exercise, and Trained + Lesion + Exercise. The training was jumping exercise in water environment for 20 days prior to injury, and treatment after the injury. Nociception was evaluated in two occasions, before injury and seven after injury. On the last day of the experiment, the right soleus muscles were collected, processed and analyzed as to morphology and morphometry. Results: In the assessment of nociception in the injury site, the Control Group had higher average than the rest, and the Lesion Group was larger than the Trained + Lesion and Lesion + Exercise Groups. The Control Group showed higher nociceptive threshold in paw, compared to the others. In the morphometric analysis, in relation to Control Group, all the injured groups showed decreased muscle fiber area, and in the Lesion Group was lower than in the Lesion + Exercise Group and Trained + Lesion Group. Considering the diameter of the muscle fiber, the Control Group had a higher average than the Trained + Lesion Group and the Trained + Lesion + Exercise Group; and the Lesion Group showed an average lower than the Trained + Lesion and Lesion + Exercise Groups. Conclusion: Resistance exercise produced increased nociception. When performed prior or after nerve damage, it proved effective in avoiding hypotrophy. The combination of the two protocols led to decrease in diameter and area of the muscle fiber. [ABSTRACT FROM AUTHOR]
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- 2017
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131. Efeitos do exercício físico sobre a cartilagem de ratas ooforectomizadas submetidas à imobilização.
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Marques Simas, José Martim, Kunz, Regina Inês, Costa Brancalhão, Rose Meire, de Fátima Chasko Ribeiro, Lucinéia, and Flor Bertolini, Gladson Ricardo
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Objective: To analyze the effects of physical exercise on cartilage histomorphometry in osteoporosis-induced rats subjected to immobilization. Methods: We used 36 Wistar rats that were separated into six groups: G1, G2 and G3 submitted to pseudo-oophorectomy, and G4, G5 and G6 submitted to oophorectomy. After 60 days at rest, G2, G3, G5 and G6 had the right hind limbs immobilized for 15 days, followed by the same period in remobilization, being free in the box to G2 and G5, and climb ladder to G3 and G6. At the end of the experiment, the rats were euthanized, their tibias bilaterally removed and submitted to histological routine. Results: There was significant increase in thickness of the articular cartilage (F(5;29)=13.88; p<0.0001) and epiphyseal plate (F(5;29)=14.72; p<0.0001) as the number of chondrocytes (F(5;29)=5.11; p=0.0021) in ovariectomized rats, immobilized and submitted to exercise. In the morphological analysis, degeneration of articular cartilage with subchondral bone exposure, loss of cellular organization, discontinuity of tidemark, presence of cracks and flocculation in ovariectomized, immobilized and free remobilization rats were found. In ovariectomized and immobilized remobilization ladder rats, signs of repair of the cartilaginous structures in the presence of clones, pannus, subcortical blood vessel invasion in the calcified zone, increasing the amount of isogenous groups and thickness of the calcified zone were observed. Conclusion: Exercise climb ladder was effective in cartilaginous tissue recovery process damaged by immobilization, in model of osteoporosis by ovariectomy in rats. [ABSTRACT FROM AUTHOR]
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- 2015
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132. Effects of physical exercise and low level laser therapy on the knee joint of Wistar rats submitted to a rheumatoid arthritis model
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Neves, Morgana, Bertolini, Gladson Ricardo Flor, Ribeiro, Lucinéia de Fátima Chasko, Tonussi, Carlos Rogerio, and Menolli, Rafael Andrade
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Inflamação Neurogênica ,Nociception ,Laser therapy ,Nocicepção ,Terapia a Laser ,Exercício ,Artrite Reumatoide ,Rheumatoid Arthritis ,Neurogenic Inflammation ,Exercise ,BIOLOGIA GERAL [CIENCIAS BIOLOGICAS] - Abstract
Submitted by Neusa Fagundes (neusa.fagundes@unioeste.br) on 2020-12-03T19:36:05Z No. of bitstreams: 2 Morgana_Neves2020.pdf: 5677098 bytes, checksum: 0343d11071f95cdbc0a7efc56dfe1be6 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2020-12-03T19:36:05Z (GMT). No. of bitstreams: 2 Morgana_Neves2020.pdf: 5677098 bytes, checksum: 0343d11071f95cdbc0a7efc56dfe1be6 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2020-02-12 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Rheumatoid arthritis presents an inflammatory profile that manifests in acute and chronic phases. As a consequence the individual presents pain and functional disability. Thus, the search for treatments that modulate the inflammatory process and maintain and/or improve peripheral functionality both in the early and late stages of the disease becomes pertinent. The objective of the study was to investigate whether treatment with low level laser therapy (LLLT) and physical exercise modulate the inflammatory process, to evaluate whether the treatments reflect on the return of functionality, and whether they reduce the deleterious effects of joint tissue. In the study the sample consisted of 128 male Wistar rats. They were divided into two periods of the disease: acute and chronic with 64 animals in each group. The animals were submitted to an experimental rheumatoid arthritis protocol with two Freund Complete Adjuvant (CFA) inoculations. All animals were evaluated (acute 4 evaluations and chronic 8 evaluations) for joint disability by paw elevation time (PTE), joint edema, and nociceptive threshold. As a treatment protocol, we opted for LLLT and stair climbing resistance exercise. After euthanasia, a total leukocyte count, percentage of cells, and the knee joints dissected, decalcified and included in paraffin to obtain the histological slides were performed. For cell differentiation analyses, the parametric ANOVA test was used as a criterion, with post-T test (LSD), functional analysis of factor ANOVA, and morphometry Generalized models with post-Sidak test. During the evaluations, the animals treated in the acute and chronic group decreased PTE and edema, and increased the nociceptive threshold. For acute and chronic cell differentiation, the treated animals reduced the amount of inflammatory cells compared to untreated injury group. In the morphological aspects, the animals of the lesion + treatment groups presented tissue alterations compared to the control group, and the groups treated with an association of treatments improved the tissue aspects evaluated for the joint cartilage, synovial membrane, and periosteum in both the acute and chronic periods of the disease. In morphometric analysis, it was found that the combination of treatments showed better effects when in isolation. The experimental arthritis induction model was effective in reflecting the deleterious effects of tissue on the knee joint, the combination of LLLT and exercise are effective in reducing the inflammatory and functional parameters analyzed. A artrite reumatoide apresenta perfil inflamatório que manifesta-se em fases agudas e crônicas. Como consequência o indivíduo apresenta dor e incapacidade funcional. Desta forma torna-se pertinente a busca por tratamentos que modulem o processo inflamatório e mantenham e/ou melhorem a funcionalidade periférica tanto na fase inicial quanto tardia da doença. O objetivo do estudo foi investigar se o tratamento com Laser de baixa intensidade (LBI) e exercício físico modulam o processo inflamatório, avaliar se os tratamentos refletem no retorno da funcionalidade, e se reduzem os efeitos deletérios do tecido articular. No estudo a amostra foi composta por 128 ratos machos da linhagem Wistar. Divididos em dois períodos da doença: agudo e crônico com 64 animais em cada grupo. Os animais foram submetidos a protocolo de artrite reumatoide experimental com duas inoculações de Adjuvante Completo de Freund (CFA). Todos os animais foram avaliados (agudo 4 avaliações e crônico 8 avaliações) quanto a incapacidade articular pelo tempo de elevação da pata (TEP), edema articular, e limiar nociceptivo. Como protocolo de tratamento optou-se pelo LBI e exercício resistido de subida de escadas. Após eutanásia, realizou-se a contagem total de leucócitos, percentual de células, e as articulações do joelho dissecadas, descalcificadas e incluídas em parafina para obtenção das lâminas histológicas. Para as análises de diferenciação celular optou-se pelo uso do teste paramétrica de ANOVA um critério, com pós-teste T (LSD), análises funcionais ANOVA fatorial, e morfometria Modelos Generalizados com pós teste Sidak. No decorrer das avaliações os animais tratados do grupo agudo e crônico diminuíram o TEP e o edema, e aumentaram o limiar nociceptivo. Para diferenciação celular agudo e crônico, os animais tratados reduziram a quantidade de células inflamatórias comparados ao grupo lesão sem tratamento. Nos aspectos morfológicos os animais dos grupos lesão e lesão + tratamento apresentaram alterações teciduais comparado ao grupo controle, os grupos tratados com associação dos tratamentos obtiveram melhora nos aspectos teciduais avaliados para a cartilagem articular, membrana sinovial e periósteo tanto no período agudo quanto crônico da doença. Na análise morfométrica, verificou-se que a combinação dos tratamentos apresentou melhores efeitos quando de forma isolada. O modelo de indução de artrite experimental foi eficaz em repercutir os efeitos deletérios teciduais na articulação do joelho, a combinação do LBI e exercício físico são eficazes em reduzir os parâmetros inflamatórios e funcionais analisados.
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- 2020
133. Effects of the vibratory platform on histomorphometry and oxidative stress in the soleus muscle in obese wistar rats
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Boaretto, Mariana Laís, Bertolini , Gladson Ricardo Flor, Ribeiro , Lucinéia de Fátima Chasko, Carvalho, Alberito Rodrigo de, and Bertoncello, Dernival
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Obesidade ,CIENCIAS BIOLOGICAS ,Músculo sóleo ,Skeletal muscle ,Obesity ,Vibração ,Vibration - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2019-05-30T18:22:07Z No. of bitstreams: 2 Mariana_Boaretto_2019.pdf: 1596653 bytes, checksum: b40f1a0984127e173d3c578c4c1d6cd9 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2019-05-30T18:22:07Z (GMT). No. of bitstreams: 2 Mariana_Boaretto_2019.pdf: 1596653 bytes, checksum: b40f1a0984127e173d3c578c4c1d6cd9 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2019-02-26 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Obesity negatively influences the musculoskeletal system and to prevent the comorbidities that this disease causes it is recommended to practice regular physical exercise. An exercise modality that is being used is the vibratory platform (PV) training, which seeks to improve muscle strength and potency. With this, the objective of this research was to verify effects of the vibratory platform in the soleus muscle in rats with obesity induced by monosodium glutamate (MSG). For this purpose, 32 Wistar rats were randomized equally to four groups: GC, GCP, GO, GOP. For the induction of obesity monosodium glutamate injections were used from the 1st to the 5th day of life of the animals. At 70 days old the training in PV was started. The protocol had a frequency adjusted at 60 Hz and amplitude of two millimeters, it was performed three times a week for 10 minutes over a period of eight consecutive weeks. At 130 days old, the animals were euthanized and the soleus muscles was collected for histological processing and histomorphometric analysis as the cross-sectional area, larger and smaller diameter of the muscle fiber, ratio of nuclei and blood vessels to muscle fiber, percentage of connective tissue, cross-sectional area, greater and smaller diameter of the neuromuscular junction and types of muscle fibers, besides the analysis of the activity of the enzymes cholinesterase (ChE), superoxide dismutase (SOD), catalase (CAT) and lipoperoxidation reaction (LPO). The data were statistically analyzed for their homogeneity, normality and analysis of the variance of two factors, adopting a level of significance of 5%. In the morphological analysis the obese groups presented muscular hypotrophy. In relation to the cross-sectional area, larger and smaller diameter, the GC and GO had higher avrage values when compared to the GCP and GOP. The capillary density and number of nuclei were lower in obese animals, but the mean was higher in the animals submitted to PV. The percentage of connective tissue was higher in obese animals, however the GOP presented smaller amount when compared to the GO. In the analysis of JNMs, concerning to the area, larger and smaller diameter, the GCP and GOP presented larger means when compared with the GC and GO, respectively. There was a predominance of oxidative fibers in the soleus muscle, with no differentiation of fibers in other types. In relation to oxidative stress, there was a decrease in lipoperoxidation in the obese groups, in the other SOD, CAT and ChE enzymes there was no significant difference. Therefore, it is concluded that the vibratory platform is able to promote changes in capillary density and nuclei by fiber, percentage of connective tissue, neuromuscular junctions and lipoperoxidation. A obesidade influência negativamente o sistema musculoesquelético e para prevenir as comorbidades que esta doença causa preconiza-se a prática regular de exercício físico. Uma modalidade de exercício que vem sendo empregada é o treino em plataforma vibratória (PV), que busca melhorar a força e a potência muscular. Com isto, o objetivo desta pesquisa foi verificar efeitos da plataforma vibratória no músculo sóleo em ratos com obesidade induzida por glutamato monossódico (MSG). Para tanto foram utilizados 32 ratos Wistar aleatorizados igualmente em quatro grupos: controle (GC), controle submetido à plataforma vibratória (GCP), obeso (GO) e obeso submetido à plataforma vibratória (GOP). Para indução da obesidade foram utilizadas injeções de glutamato monossódico do 1º ao 5º dia de vida dos animais. Aos 70 dias de idade dos animais iniciou-se o treino em PV. O protocolo teve frequência ajustada a 60 Hz e amplitude de dois milímetros e foi realizado três vezes por semana, durante 10 minutos, em um período de oito semanas consecutivas. Aos 130 dias de idade os animais foram eutanasiados e coletado os músculos sóleos para o processamento histológico e análise histomorfométrica quanto a área de secção transversa, maior e menor diâmetro da fibra muscular, relação de núcleos e vasos sanguíneos por fibra muscular, porcentagem de tecido conjuntivo, área de secção transversa, maior e menor diâmetro da junção neuromuscular e tipos de fibras musculares, além da análise da atividade das enzimas colinesterase (ChE), superóxido dismutase (SOD), catalase (CAT) e reação de lipoperoxidação (LPO). Os dados foram analisados estatisticamente quanto à sua homogeneidade, normalidade e análise da variância de dois fatores, adotando-se nível de significância de 5%. Na análise morfológica os grupos obesos apresentaram hipotrofia muscular. Em relação à área de secção transversa, maior e menor diâmetro, GC e GO apresentaram médias maiores quando comparados com GCP e GOP. A densidade capilar e número de núcleos foram menores nos animais obesos, contudo a média foi maior nos animais submetidos a PV. A porcentagem de tecido conjuntivo foi maior nos animais obesos, porém o GOP apresentou menor quantidade quando comparado com o GO. Na análise das junções neuromusculares, em relação à área, maior e menor diâmetro, GCP e GOP apresentaram médias maiores, quando comparado com GC e GO, respectivamente. Houve predomínio de fibras oxidativas no músculo sóleo, não havendo diferenciação das fibras em outros tipos. Em relação ao estresse oxidativo, houve diminuição da LPO nos grupos obesos, nas demais enzimas SOD, CAT e ChE não houve diferença significativa. Conclui-se desta forma que a plataforma vibratória é capaz de promover alterações quanto à densidade capilar e núcleos por fibra, porcentagem de tecido conjuntivo, nas junções neuromusculares e na lipoperoxidação.
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- 2019
134. Action of sericin protein in ischiatic nervous injury, associated with physical exercise of swimming, in wistar rats
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Debastiani, Jean Carlos, Bertolini , Gladson Ricardo Flor, Ribeiro , Lucinéia de Fátima Chasko, Torrejais , Marcia Miranda, and Tonussi , Carlos Rogerio
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Biomaterials ,Silk Protein ,Exercícios em meio aquático ,CIENCIAS BIOLOGICAS ,Compressão nervosa ,Proteína da seda ,Exercises in the aquatic environment ,Nerve compression ,Biomateriais - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-02-23T17:32:36Z No. of bitstreams: 2 Jean_Debastiani2017.pdf: 2133266 bytes, checksum: 2c24ca5fdccdfabea585b210fcf8110f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2018-02-23T17:32:36Z (GMT). No. of bitstreams: 2 Jean_Debastiani2017.pdf: 2133266 bytes, checksum: 2c24ca5fdccdfabea585b210fcf8110f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-08-11 Lesions in the peripheral nervous system imply active in voluntary motor function, leading to increased morbidity, incapacities in work activities and daily life, with consequent increase in costs for the public health system. Effective treatments research, studies have shown that physical and efficient exercise in functional recovery after the development of the nervous system, which is not a process of nerve regeneration. In addition, several products are being investigated with no intention to aid recovery, there are no cases of sericin silk protein, studies indicate its action in the healing process, contributing in the tissue regeneration in chronic lesions. The aim of this study was to verify the role of sericin associated with a swimming exercise protocol, with overload, without repair of the sciatic nerve of Wistar rats after nerve compression. For this purpose, 80 animals were divided into five groups of 16 animals each, being: control (CON), Injury (LES), injury-sericin (LSER), injury-swimming (LNAT) and injury-sericin-swimming (LSRNT). The animals of the LES, LSER, LNAT and LSRNT groups were submitted to compression of the sciatic nerve, however LSER and LSRNT received an application of hydrolyzed sericin protein directly on a nerve lesion at the time of surgery. The LNAT and LSRNT groups underwent swimming exercise with a load of 10% of the body weight of the animal, for cycles of five days of training and two of rest, of 1 or 3 cycles, according to the euthanasia times, and with progression of time, being in the first cycle 15 minutes of exercise, in the second 20 minutes and 25 minutes in the third cycle. During the experimental period, animals as well as nociception, by the digital "Von Frey" filament test and function analysis by means of the functional index of the ischiatic. Euthanasia was performed in two stages, the sample being euthanized on the 8th postoperative day, and the remainder on the 22nd day. Two fragments of the nerve, distal to the nerve injury, were collected and prepared for light microscopy analysis, stained with hematoxylin-eosin and pre-stained with carbon tetraoxide, being observed as morphological and morphometric characteristics of the nerve fiber. The results were analyzed statistically as their normality and one-way ANOVA was performed, with LSD post-test. Regarding the euthanized animals on the eighth day, a sericin applied directly on the sciatic nerve lesion, presented proinflammatory characteristics, and an isolated swimming showed an improvement of hypernociception in relation to the other interventions. There were no signs of acceleration of the nerve repair process on the eighth day after injury. In relation to the euthanized animals on the 22nd day, an association of sericin and swimming treatment evidenced a regulating effect of the serinin pro-inflammatory action by the resisted swimming exercise, and an isolated sericin caused exacerbation of the inflammatory process and resistance swimming exercise, It showed good evolution to the nociceptive threshold and allodynia. Lesões no sistema nervoso periférico implicam em alterações na função motora voluntária, levando ao aumento da morbidade, incapacidades nas atividades laborais e de vida diária, com consequente aumento dos custos para o sistema de saúde público. Na busca de tratamentos efetivos, estudos têm demonstrado que o exercício físico é eficiente na recuperação funcional após lesão do nervo isquiático, sendo que a natação pode produzir a aceleração no processo de regeneração nervosa. Além disso, diversos produtos vêm sendo investigados no intuito de auxiliar a recuperação, no caso da proteína da seda sericina, estudos apontam sua ação no processo de cicatrização, contribuindo na regeneração tecidual em lesões crônicas. Observados estes aspectos, esta pesquisa teve por objetivo verificar o papel da sericina associada a um protocolo de exercício de natação, com sobrecarga, no reparo do nervo isquiático de ratos Wistar após compressão nervosa. Para tanto, foram utilizados 80 animais divididos em cinco grupos de 16 animais cada, sendo: controle (CON), lesão (LES), lesão-sericina (LSER), lesão-natação (LNAT) e lesão-sericina-natação (LSRNT). Os animais dos grupos LES, LSER, LNAT e LSRNT foram submetidos à compressão do nervo isquiático, porém somente LSER e LSRNT receberam a aplicação de proteína sericina hidrolisada diretamente sobre a lesão nervosa no momento da cirurgia. Os grupos LNAT e LSRNT realizaram exercício de natação com carga de 10% do peso corporal do animal, por ciclos de cinco dias de treino e dois de descanso, de 1 ou 3 ciclos, de acordo com os tempos de eutanásia, e com progressão de tempo, sendo no primeiro ciclo 15 minutos de exercício, no segundo 20 minutos e 25 minutos no terceiro ciclo. Durante o período experimental, os animais foram avaliados quanto à nocicepção, pelo teste de filamento tipo “Von Frey” digital e análise de função por meio do índice funcional do isquiático. A eutanásia foi realizada em duas etapas, sendo metade da amostra eutanasiada no 8º dia de pós-operatório, e o restante no 22º dia. Dois fragmentos do nervo, distais à lesão nervosa, foram coletados e preparados para analise em microscopia de luz, corado com hematoxilina-eosina e pré-corado com tetróxido de ósmio respectivamente, sendo observadas as características morfológicas e morfometricas da fibra nervosa. Os resultados obtidos foram analisados estatisticamente quanto sua normalidade e realizado ANOVA unidirecional, com pós-teste de LSD. Em relação aos animais eutanasiados no oitavo dia, a sericina aplicada diretamente sobre a lesão nervosa isquiática, apresentou características pró-inflamatórias, já a natação isolada mostrou melhora da hipernocicepção em relação às demais intervenções. Não houve sinais de aceleração do processo de reparo nervoso no oitavo dia após a lesão. Já em relação aos animais eutanasiados no 22º dia, a associação do tratamento de sericina e natação evidenciou um efeito regulador da ação pró-inflamatória da sericina pelo exercício resistido de natação, já a sericina isolada provocou exacerbação do processo inflamatório e o exercício de natação resistido, mostrou boa evolução quanto ao limiar nociceptivo e alodinia.
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- 2017
135. Evaluation of biological effects of sericin on human lung cancer cell line
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Santos, José Henrique Fermino Ferreira dos, Brancalhão , Rose Meire Costa, Loth , Eduardo Alexandre, Azevedo , Ricardo Alexandre de, and Ribeiro , Lucinéia de Fátima Chasko
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Sobrevivência Celular ,Neoplasias pulmonares ,Apoptose ,Cell Movement ,CIENCIAS BIOLOGICAS ,Carcinoma ,Movimento Celular ,Cellular Survival ,Apoptosis ,Non-Small-Cell Lung ,Sericina ,Sericin - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-02-23T18:26:15Z No. of bitstreams: 2 Jose_santos2017.pdf: 2362954 bytes, checksum: 3cd8da60eb3efb9e2ed240ef51fa9a23 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2018-02-23T18:26:15Z (GMT). No. of bitstreams: 2 Jose_santos2017.pdf: 2362954 bytes, checksum: 3cd8da60eb3efb9e2ed240ef51fa9a23 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-08-01 Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Lung cancer is highly lethal and smoking is an important risk factor. Non-small cell tumor is the most common, less aggressive type of lung carcinoma and treatment involves surgery, chemotherapy, and radiation therapy. However, late diagnosis, due to the absence of signs and symptoms in the early stages of the disease, makes the survival rate low. In this sense, the search for new chemical substances with characteristics of selectivity, effectiveness and low toxicity have been investigated in the treatment of cancer. Studies show that sericin, a protein extracted from silkworm cocoons, exhibits anti-tumor and anticarcinogenic activity in colon and skin cancer cells, stimulating apoptosis and disrupting the cell cycle, and protecting normal cells against oxidative stress and lipid peroxidation . Thus, the therapeutic potential of sericin has raised interest in evaluating its effect on non-small cell lung cancer cell line. The studies were conducted in culture, where the effects of silk protein were evaluated: on cell viability, by neutral red assays and tetrazolium - MTT cytotoxicity; in the apoptotic potential, with annexin-5 and Alexa Fluor® and Propidium Iodide assays; and in cell migration by the Wound Healing model assay. Low doses of sericin were able to increase lysosomal viability, reduce mitochondrial viability, increase apoptosis and cell migration, while high doses of sericin exponentially reduced cell migration and did not alter the rate of apoptosis / necrosis of cancer cells. Sericin is a biomaterial that causes biological effects on the cell line tested, and can be used to increase lysosomal viability, reduce mitochondrial function, increase apoptosis at low doses and inhibit high-dose cell migration. O câncer de pulmão apresenta alta letalidade e o fumo se constitui como um importante fator de risco. O tumor de células não pequenas é o tipo de carcinoma pulmonar mais comum, menos agressivo e o tratamento envolve cirurgia, quimioterapia e radioterapia. Entretanto, o diagnóstico tardio, em função da ausência de sinais e sintomas nos estágios iniciais da doença, faz com que a taxa de sobrevivência seja baixa. Nesse sentido, a busca de novas substâncias químicas com características de seletividade, de efetividade e de baixa toxicidade tem se refletido em pesquisas que investigam o uso dessas substâncias no tratamento do câncer. Estudos mostram que a sericina, proteína extraída dos casulos do bicho-da-seda, apresenta atividade antitumoral e anticarcinogênica em células cancerosas de cólon e de pele, estimulando a apoptose e interrompendo o ciclo celular, além de proteger células normais contra estresse oxidativo e peroxidação lipídica. Assim, o potencial terapêutico da sericina suscitou o interesse em avaliar seu efeito em linhagem celular de câncer de pulmão do tipo células não pequenas. Os estudos foram conduzidos em cultura, em que foram avaliados os efeitos da proteína da seda: na viabilidade celular, por meio de ensaios pelo vermelho neutro e de citotoxicidade com o tetrazólio - MTT; no potencial apoptótico, com ensaios com anexina-5 e Alexa Fluor® e Iodeto de Propídio; e na migração celular, ensaio com o modelo Wound Healing. Baixas doses de sericina foram capazes de aumentar a viabilidade lisossomal, reduzir a viabilidade mitocondrial, aumentar a apoptose e a migração celular, enquanto altas doses de sericina reduziram exponencialmente a migração celular e não alteraram a taxa de apoptose/necrose das células cancerosas. A sericina é um biomaterial que provoca efeitos biológicos na linhagem celular testada, e pode ser utilizada para aumentar a viabilidade lisossomal, reduzir a função mitocondrial, aumentar a apoptose em baixas doses e inibir a migração celular em doses altas.
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- 2017
136. A land use as an effect factor on the occurrence of chromosomal diseases in Brazil
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Cochak, Marcos Roberto, Ribeiro, Lucinéia de Fátima Chasko, Guimarães, Ana Tereza Bittencourt, Brancalhão, Rose Meire Costa, and Terencio, Maria Leandra
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Agrotóxicos ,Genética Médica ,CIENCIAS BIOLOGICAS ,Máxima entropia ,Ocupação e uso do solo ,Chromosomal alterations Pesticides ,Maximum entropyx ,Occupation and land use ,Medical Genetics ,Alterações cromossômicas - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-04-24T14:44:00Z No. of bitstreams: 2 Marcos_Cochak2017.pdf: 1598683 bytes, checksum: e921541055d1b3f686918cb26de4db2d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2018-04-24T14:44:00Z (GMT). No. of bitstreams: 2 Marcos_Cochak2017.pdf: 1598683 bytes, checksum: e921541055d1b3f686918cb26de4db2d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-07-28 population, responsible for spontaneous abortions, problems related to infertility, and a large number of congenital anomalies that cause psychosocial and economic impact in families and also in the health system. They are present in about 1% of the liveborn, 2% of the conceptions known in women over the age of 35 years and almost all the abortions occurred in the first trimester of gestation. These anomalies involve changes in the set or structure of the chromosomes and are referred to as syndromes, such as Down syndrome or trisomy 21 is the best known, corresponding to the fourth most frequent cause of congenital anomalies. Chromosomal changes may be inherited or de novo originated, having biological influence or associated with environmental factors such as exposure to physical and chemical agents such as industrial wastes and agrochemicals. Diagnosis is made through karyotype analysis, and their knowledge is the basis for subsequent clinical treatment, prognosis, and risk-of-recurrence data for genetic counseling. Thus, the objective of this research was to analyze, through a retrospective study, human chromosomal disorders from regions of Brazil in the period of ten years (2005 to 2015), and correlates them with the use and occupation of soil through MaxEnt (maximum entropy) a predictive model for evaluation of association of occurrence of cases of chromosomal alterations as a function of soil use and occupation. In order to do so, a documentary study was carried out in the karyotype database of samples sent to the cytogenetic study of a national clinical laboratory. Of the 43,672 karyotype results, 83% (n= 36,435) were normal, 52% (n= 18,946) female and 48% (n= 17,489) male. Karyotypes with chromosomal abnormalities were found in 17% (n= 7,237), where 52% (n= 3763) female and 48% (n= 34740) male, were the most frequent aneuploidies (77% 5.558), structural changes totaled 16% (n = 1,163) and concomitant numerical and structural changes 7% (n= 516). 79.2% of the alterations involved autosomal chromosomes and 20.3% sex chromosomes, and 0.48% involved both autosomal and sexual. Among the altered cases, 9% (n= 668) were detected in mosaic. Characterizing chromosomal diseases by regions of Brazil, the highest proportion was in the South region, with 6 cases changed/100,000 inhabitants, followed by the Midwest and North regions, with 4 cases/100,000 inhabitants. The Northeast and Southeast regions presented the lowest proportions (3 cases changed/100,000 inhabitants and 2 altered cases/100,000 inhabitants respectively). When characterizing chromosomal diseases by regions of Brazil, it was possible to observe that in absolute numbers the highest frequencies occurred in the North and Northeast regions. Structural autosomal alterations were more frequent in the Southeast region, and numerical and structural concomitants were more frequent in the Northern region. Changes in mosaics were more frequent in the South, Northeast and Center-West regions, and those of single lineage were significantly more frequent in the Southeast region. Regarding land use and occupation, urbanized areas had a higher probability of occurrence of chromosomal diseases (50 to 90%), followed by areas using permanent crops (40 to 50%). This research demonstrates the prevalence of chromosomal diseases and their geographic distributions in Brazil being of great value, since studies of this genre are scarce in Brazil and, can serve as a tool to identify the incidence and recurrence risk of chromosomal diseases, enabling genetic counseling and information for the elaboration of public policies that improve the patients quality of life. As alterações cromossômicas são doenças genéticas representativas na população, responsáveis por abortamentos espontâneos, problemas relacionados à infertilidade e grande número de anomalias congênitas, que causam impacto psicossocial e econômico nas famílias e no sistema de saúde. Estão presentes em cerca de 1% dos nativivos, 2% das concepções conhecidas em mulheres com idade acima de 35 anos e quase a totalidade dos abortos ocorridos no primeiro trimestre de gestação. Estas anomalias envolvem alterações no conjunto ou estrutura dos cromossomos e são denominadas como síndromes, dentre elas a de Down, ou trissomia do 21, é a mais conhecida, correspondendo à quarta causa mais frequente de anomalias congênitas. As alterações cromossômicas podem ser herdadas ou originadas de novo, tendo influência biológica ou associadas a fatores ambientais, como a exposição a agentes físicos e químicos, como os resíduos industriais e agrotóxicos. O diagnóstico é feito através da análise do cariótipo, e o seu conhecimento é a base para o tratamento clínico subsequente, prognóstico e dados sobre o risco de recorrência para o aconselhamento genético. Assim, o objetivo desta pesquisa foi analisar através de estudo retrospectivo as cromossomopatias humanas oriundas de regiões brasileiras no período de dez anos (2005 a 2015), e correlacioná-las com o uso e ocupação de solo através do programa MaxEnt (máxima entropia), um modelo preditivo para avaliação de associação de ocorrência de casos em função do uso e ocupação do solo. Para tanto, foi realizado um estudo documental, no banco de dados dos resultados de cariótipos, de amostras enviadas para o estudo citogenético de um laboratório clínico de abrangência nacional. Dos 43.672 resultados de cariótipo, 83% (n=36.435) foi normal, sendo 52% (n=18.946) do sexo feminino e 48% (n=17.489) masculino. Cariótipos com alterações cromossômicas foram encontradas em 17% (n=7.237), onde 52% (n=3763) do sexo feminino e 48% (n=3474) do sexo masculino, sendo as aneuploidias as mais frequentes (77%; n=5.558). As alterações estruturais somaram 16% (n=1.163) e alterações numéricas e estruturais concomitantes, 7% (n=516). Das alterações, 79.2% envolvia cromossomos autossômicos, 20,3% cromossomos sexuais e 0,48% envolvia ambos autossômicos e sexuais. Dentre os casos alterados, 9% (n=663) foi detectado em mosaico. Caracterizando as cromossomopatias por regiões do Brasil, a maior proporção de alterações por habitantes foi na região Sul, com 6/100.000, seguida pelas regiões Centro-Oeste e Norte, com 4/100.000. As regiões Nordeste e Sudeste apresentaram as menores proporções, 3/100.000 e 2/100.000, respectivamente. Ao caracterizar as frequências por regiões do Brasil, foi possível observar que em número absoluto, as maiores ocorreram nas regiões Norte e Nordeste. As alterações autossômicas estruturais na região Sudeste, e numéricas e estruturais concomitantes na região Norte. Alterações em mosaicos foram mais frequentes nas regiões Sul, Nordeste e Centro-Oeste e as de linhagem única foram mais significativamente na região Sudeste. Em relação ao uso e ocupação de solo, as áreas urbanizadas apresentaram uma maior probabilidade de ocorrência de cromossomopatias (50 a 90%), e seguida por áreas de lavouras permanentes (40 a 50%). Esta pesquisa demonstra as prevalências das alterações cromossômicas e suas distribuições geográficas no Brasil sendo de grande valia, pois estudos deste gênero são escassos no País e, poderão servir de ferramenta para identificar o risco de incidência e recorrência de doenças cromossômicas, possibilitando o aconselhamento genético e informações para a elaboração de políticas públicas que melhorem a qualidade de vida dos pacientes.
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- 2017
137. Avaliação da influência da obesidade induzida pelo glutamato monossódico nos tecidos periodontais de ratas submetidas à periodontite experimental
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Mattia, Tatiane Morgenstern de, Nassar, Carlos Augusto, Ribeiro, Lucinéia de Fátima Chasko, and Bombonatti, Juliana Fraga Soares
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Obesidade ,CIENCIAS BIOLOGICAS ,Periodontite ,Ovary hormones ,Obesity ,Hormônios ovarianos ,Periodontitis - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2017-12-18T17:51:48Z No. of bitstreams: 2 TATIANE_MATTIA2017.pdf: 1152114 bytes, checksum: 712fc2801c953f31d127b53677f3a645 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2017-12-18T17:51:48Z (GMT). No. of bitstreams: 2 TATIANE_MATTIA2017.pdf: 1152114 bytes, checksum: 712fc2801c953f31d127b53677f3a645 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-02-10 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Periodontal disease is one of the most important diseases around the world. Its progress occurs due to a combination of factors which affect the sustainable tissues of teeth, and which leads to the development of periodontal pockets and to the reabsorption of the alveolar bone. This can also result in tooth loss. By considering obesity as one of the systemic diseases which pre-establishes a series of complications and as a risk factor to other chronic pathologies, several studies have suggested that this condition is also an important risk factor for the development of periodontal diseases. It is known that the periodontal disease is immune-inflammatory when there is an imbalance between the immune host responses and the causative agents, and that it may be intensified when associated to systemic factors and conditions. This study aims at evaluating the effect of obesity induced by monosodium glutamate (MSG) over the periodontal tissues of rats having induced periodontitis. In this study, 33 rats were divided, initially, into two groups which were submitted to intradermal injections in the cervical region using 1,25g/kg/day of saline solution (group CON), and 1,25g/kg/day of MSG solution (group B), in their first 5 days of life. At 70 days, the periodontal disease was induced with the placement of ligatures in first inferior premolars of both sides of animals. This served as a gingival irritation for 30 days, and provided the cumulus of bacterial plaque, and consequently, the development of periodontal disease. After this procedure, the animals were sub-divided into 4 groups: control group without ligatures (CON); control group with ligatures (CONLIG); obese without ligature (OB), and obese with ligature (OBLIG). At 100 days, the rats were weighed and measured related to the naso-anal length in order to determine the Lee index. Through the vaginal cytology, the female rats which were in proestrus in their estrous cycles were euthanized. After that, the perigonadal and retro perigonadal fats were collected and weighted. It was also collected blood from the right brain stem. The conditions of the estradiol and progesterone were determined by using specific kits. The left and right hemi mandibles were withdrawn and submitted to a radiographic and histological analysis, respectively. A sample of the gingival tissue was collected in order to dosage the cytokines. The data were analyzed and evaluated through the ANOVA and Tukey. Obesity was confirmed by Lee index and by retroperitoneal and perigonadal fat (p
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- 2017
138. Effect of resting physical exercise on stair climbing, on peripheral nerve regeneration, in an experimental model of sciatica
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Antunes, Juliana Sobral, Bertolini , Gladson Ricardo Flor, Ribeiro , Lucinéia de Fátima Chasko, Bertolini, Gladson Ricardo Flor, Fontoura , Humberto de Sousa, and Silva , Patrícia Cristina Lisbôa da
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Nerve regeneration ,Nervo isquiático ,CIENCIAS BIOLOGICAS ,Sciatic nerve ,Exercício físico ,Exercise ,Regeneração nervosa - Abstract
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2017-12-01T13:24:56Z No. of bitstreams: 2 JULIANA _ANTUNES2016.pdf: 2044516 bytes, checksum: 8b8259c8bf77ca4b4a753df40515ef1f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2017-12-01T13:24:56Z (GMT). No. of bitstreams: 2 JULIANA _ANTUNES2016.pdf: 2044516 bytes, checksum: 8b8259c8bf77ca4b4a753df40515ef1f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-11 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The research is experimental, quantitative and random character, which aimed to analyze the effect of resistance exercise climb stairs, on the regeneration of the sciatic nerve of Wistar rats. The sample consisted of 24 animals were randomly separated into four groups: GC - control; GE - only exercised; GL - injured and untreated; and GLE - injured and treated. The compressive lesion of the right sciatic nerve was performed in anesthetized animals and was to conduct a nerve impingement in 30 seconds with hemostat. From the third day after surgery, the animals of GE and GLE were submitted to resistance exercise climb stairs, and made two sets of ten climbs the ladder with overhead 100 grams adapted to its tail, with an interval of one minute between one series and another 5 days a week for 3 weeks. In the course of this period, all animals were evaluated for the presence of edema and nociceptive threshold of the right hind limb. After treatment, the animals were anesthetized and euthanized to collect a fragment of two centimeters of the right sciatic nerve, which was subjected to routine histological processing, for morphological analysis and Western blotting technique for molecular analysis. Regarding edema evaluation results, there was only meant difference in comparing the evaluations (p
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- 2016
139. Morphological analyzes of the epididymis of adults and elderly rats after supraphysiological doses of nandrolone decanoate and resistance exercise in aquatic environment
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Brandl, Lana, Beu, Célia Cristina Leme, Ribeiro, Lucinéia de Fátima Chasko, and Fernandes, Glaura Scantamburlo Alves
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Morphology ,CIENCIAS BIOLOGICAS [CNPQ] ,age ,Ductos espermáticos ,exercício físico ,Anabolic androgenic steroids ,Morfologia ,Esteroides androgênicos anabolizantes ,Exercise ,Spermatic ducts ,Idade - Abstract
Made available in DSpace on 2017-07-10T14:17:20Z (GMT). No. of bitstreams: 1 Lana_Branai.pdf: 2297634 bytes, checksum: 8dbbaa1b059e5e38dcdd38ba4a303557 (MD5) Previous issue date: 2016-03-04 Nowadays, the search for beauty, has caused health problems associated with the use of anabolic androgenic steroid (AAS) and even strenuous exercise, and the male reproductive system is the subject of studies to be sensitive to changes in the concentration of this type of hormone; these changes may also occur with increasing age, causing changes in androgen-dependent organs, like the epididymis. This study aimed to verify if treatment with AAS associated or not to exercise, in Sprague-Dawley rats alters the morphology of the epididymis in adult rats and its chronic effects in the elderly. The training was conducted by jumping into the water, weighing overloading, being considered as resistance exercise in water. The AAS administration occurred by intramuscular injection of nandrolone decanoate (10 mg / kg / week). Epididymal samples were subjected by histological routine of hematoxylin and eosin for morphological and morphometric analysis. It was analyze all parts of the epididymis (initial segment, caput, corpus and cauda) of 56 Sprague-Dawley rats, virgins, with 13 weeks old, divided into eight groups with seven animals each: GC - adults and sedentary; GCi - elderly and sedentary; GN - adults, sedentary treated with AAS; GNi - elderly, sedentary treated with AAS; GE - adults treated with exercise; GEi - elderly treated with exercise; GNE - adults, exercise and treatment with AAS; GNEi - elderly, exercise and treatment with AAS. The results show significant changes in duct diameters; the GE was lower when compared to other groups, and the groups that were used anabolic steroids, had a larger diameter than the other, and these changes occurred mainly in the initial segments. The epithelial height in the initial segment was also considered higher in the groups that administered AAS. The elderly groups tend to return to normal, increasing the parameters of epithelial height and diameter when these were decreased, and lowering them when they were enlarged when compared with the related adult group (with common variable), except at the tail of GNEi. As the results of this study, we can conclude that both treatment in adulthood, with exercise and the use of AAS, changes morphometric and morphological parameters of the epididymis, and its chronic effects can be diminished with age. Atualmente, a procura pela beleza estética, tem causado problemas de saúde associados ao uso de esteroides androgênicos anabolizantes (EAAs) e até mesmo a exercícios físicos intensos. O sistema genital masculino é alvo de estudos por ser sensível a mudanças na concentração desse tipo de hormônio; essas alterações também podem ocorrer com o aumento da idade, influenciando órgãos androgênio-dependentes, como o epidídimo. Nesse sentido, objetivou-se com esse estudo, verificar se o tratamento com EAAs associado ou não ao exercício físico resistido, em ratos Sprague-Dawley, altera a morfologia do Epidídimo em ratos adultos e seus efeitos a longo prazo em idosos. Foram analisadas todas as porções dos epidídimos (segmento inicial, cabeça, corpo e cauda) de 56 ratos, virgens, da linhagem Sprague-Dawley (com 13 semanas de vida ao iniciarem o experimento), separados em oito grupos com sete animais cada: GC - adultos e sedentários; GCi - idosos e sedentários; GN - adultos, sedentários, tratados com EAA; GNi - idosos, sedentários, tratados com EAA; GE - adultos tratados com exercício; GEi - idosos tratados com exercício; GNE - adultos, exercício e tratamento com EAA; GNEi - idosos, exercício e tratamento com EAA. O treinamento realizado foi exercício resistido em meio aquático (através de saltos na água, com sobrecarga) com duração de oito semanas (três vezes na semana). A administração de EAAs ocorreu pela aplicação intramuscular de Decanoato de Nandrolona (10 mg/kg/semana) também durante oito semanas (duas vezes na semana). Amostras epididimárias passaram pela rotina histológica de hematoxilina e eosina para análise morfológica e morfométrica. Os resultados mostraram alterações significativas nos diâmetros de ductos, sendo que o GE foi menor quando comparado ao controle, e, nos grupos em que foram utilizados anabolizantes, tiveram diâmetro aumentado significativamente, e essas alterações ocorreram principalmente nos segmentos mais iniciais. A altura epitelial, no segmento inicial, também foi maior nos grupos em que foi utilizado anabolizante. Os grupos idosos tenderam a retornar a normalidade, aumentando os parâmetros de altura e diâmetro quando esses estavam diminuídos, e diminuindo-os quando estavam aumentados em comparação ao grupo adulto relacionado (com variável em comum), a não ser na cauda, do GNEi, em que houve aumento significativo. Achados morfológicos indicaram presença de debris celulares em lúmen (GN e GNEi) e infiltrados intersticiais (GN, GNE, GE e GCi). Conforme os resultados desse estudo, pôde-se concluir que tanto o tratamento na fase adulta com exercício, quanto à utilização de EAAs altera parâmetros morfométricos e morfológicos do epidídimo, e que seu efeito crônico pode ser diminuído com a idade.
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- 2016
140. Efeitos do exercício resistido no músculo sóleo após lesão compressiva do nervo isquiático de ratos wistar
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Lovison, Keli, Ribeiro, Lucinéia de Fátima Chasko, Brancalhão, Rose Meire Costa, and Beu, Célia Cristina Leme
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Physical Therapy Specialty ,CIENCIAS BIOLOGICAS [CNPQ] ,Rehabilitation ,Nervos periféricos ,Reabilitação ,skeletal muscle ,Peripheral nerves ,Fisioterapia ,Músculo esquelético - Abstract
Made available in DSpace on 2017-07-10T14:17:14Z (GMT). No. of bitstreams: 1 DISSERTAcaoO_ KELI.pdf: 1674157 bytes, checksum: f976ff9c495b873b950cdeee2b8ec507 (MD5) Previous issue date: 2016-02-02 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Peripheral nerves injuries result in interruption of the transmission of nerve impulses, with a decrease or loss of sensation and motor function in innervated area, directly affecting the muscle tissue and the individual's mobility. Annually in developed countries, their impact is significant and affects mainly the active economically peoples, leading to decrease in quality of life and socio-economic impacts. In the rehabilitation process physical exercises are used as a therapeutic modality that can assist in maintaining muscle properties and functional recovery. Thus, this study aimed to analyze the effects of resistance exercise with ladder climbing in the soleus muscle, after compression of the sciatic nerve of Wistar rats. For this purpose, 24 adult rats were used, randomly divided into 4 groups of 6 animals each: control; exercise; lesion; and exercise with lesion. Three days after the compression of the sciatic nerve, the animals in the exercise group and the exercise with lesion group were submitted to resistance exercise for 21 days. After this period, the animals were euthanized and the soleus muscle processed for histomorphometric analysis. The results showed an increase cross-sectional area of muscle fibers in group exercise as compared to the other groups, as well as an increase area in group exercise with lesion in relation the group lesion. In the measurement of smaller diameter of the fibers, higher values were observed in group exercise when compared to control and lesion. Also, an increase in the number of blood capillaries in group lesion in comparison with exercise and exercise with lesion, and decreased number of fibers in group exercise, when compared to lesion and exercise with lesion. There was a fewer of sarcomeres at 300 μm, while its length is increase in lesion and exercise with lesion, as compared to control. The morphology analysis revealed that group exercise, most of the fibers had hypertrophied, while in group lesion was evident muscle damage resulting from sciatic compression, with irregular fibers, nucleus central and with surrounding halo, disruption of fiber and muscle fascicle, myoblasts to the site of injury and increased blood capillaries. Since the group exercise with lesion, a significant improvement in muscle morfology was found, with few fibers altered characteristics. The AQP1 was imunolocalizada the endothelium of blood capillaries present in the muscle fibers of all groups. Thus, it is concluded that resistance exercise with ladder climbing initiated during the acute phase, was an effective therapeutic modality in the recovery of morfology in the soleus muscle after denervation. Lesões nos nervos periféricos resultam na interrupção da transmissão de impulsos nervosos, que pode levar à diminuição ou perda da sensibilidade e motricidade no território inervado, afetando diretamente o tecido muscular e a mobilidade do indivíduo. Anualmente, em países desenvolvidos, sua incidência é expressiva e acomete, principalmente, a população economicamente ativa, levando à diminuição na qualidade de vida e impactos socioeconômicos. No processo de reabilitação os exercícios físicos são utilizados como modalidade terapêutica, auxiliando na manutenção das propriedades musculares e na recuperação funcional. Por este motivo, este estudo objetivou analisar os efeitos do exercício físico resistido de subida em escada no músculo sóleo, após lesão compressiva do nervo isquiático de ratos Wistar. Para tanto, foram utilizados 24 ratos adultos divididos aleatoriamente em 4 grupos, com 6 animais cada: controle, exercício, lesão e lesão com exercício. Três dias após a compressão experimental do nervo isquiático, os grupos exercício e lesão com exercício, foram submetidos ao exercício resistido de subida em escada, durante 21 dias. Após este período, os animais foram eutanasiados e o músculo sóleo processado para avaliação histomorfométrica. Os resultados mostraram maior área de secção transversa das fibras musculares no grupo exercício, quando comparado com os demais grupos, assim como, uma maior área no grupo lesão com exercício em relação ao grupo lesão. Na mensuração do menor diâmetro das fibras, foram verificados valores maiores no grupo exercício quando comparado com os grupos controle e lesão. Também, houve aumento do número de capilares sanguíneos no grupo lesão, quando comparado com os grupos exercício e lesão com exercício, e diminuição do número de fibras no grupo exercício, quando comparado com os grupos lesão e lesão com exercício. Houve menor número de sarcômeros em 300 μm, ao mesmo tempo em que seu comprimento foi maior nos grupos lesão e lesão com exercício, quando comparado ao grupo controle. A análise morfológica revelou que no grupo exercício a maioria das fibras se apresentava hipertrofiada, enquanto que no grupo lesão foram evidentes os sinais de dano muscular decorrentes da lesão isquiática, com fibras irregulares, núcleos centrais e com halo circundante, desorganização da fibra e do fascículo muscular, mioblastos no local da lesão e aumento dos capilares sanguíneos. Já no grupo lesão com exercício, foi verificado uma melhora significativa na morfologia muscular, com poucas fibras com características alteradas. A AQP1 foi imunolocalizada no endotélio dos capilares sanguíneos presentes nas fibras musculares de todos os grupos. Assim, conclui-se que o exercício resistido de subida em escada, iniciado na fase aguda, foi uma modalidade terapêutica eficaz na recuperação de aspectos morfológicos no músculo sóleo após a desnervação
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- 2016
141. Evaluation photodynamic therapy in an experimental model of arthritis induced by paracoccidioides brasiliensis
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Tomadon, Aniele, Brancalhão, Rose Meire Costa, Loth, Eduardo Alexandre, Hernandes, Luzmarina, and Ribeiro, Lucinéia de Fátima Chasko
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CIENCIAS BIOLOGICAS [CNPQ] ,Paracoccidioidomicose, articulações, fotoquimioterapia, artrite séptica ,Paracoccidioidomycosis, joints, photochemotherapy, arthritis infectious - Abstract
Made available in DSpace on 2017-07-10T14:17:17Z (GMT). No. of bitstreams: 1 aniele_ tomadon.pdf: 1946569 bytes, checksum: 9b3b2e8ea732badbc11f5df6fa34a988 (MD5) Previous issue date: 2016-02-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico Paracoccidioidomycosis (PCM), caused by the dimorphic fungus Paracoccidioides brasiliensis, is one of the most prevalent systemic mycosis in Latin America. Infection can occur accidentally through direct inoculation or mainly through inhalation of propagules of P. brasiliensis, which are installed initially in the lungs and can spread to organs and tissues of the host. In the acute form of the disease the major clinical manifestation is the febrile lymphoproliferative syndrome, occurring osteoarticular involvement; the same for the chronic form, in which 60% of cases, bone and joint changes usually treated for extended periods with conventional antifungal agents. Drug therapy is the most widely used to treatment the disease, however, high costs, poor adherence to treatment and adverse side effects, take the need to search for alternative therapies such as photodynamic (PDT), which has low cost and toxicity, local action and does not induce resistance to microorganisms. In vitro studies have shown positive results of PDT against various fungi, but there are no in vivo reports on its action in the control of P. brasiliensis. In this sense, the present study aimed to evaluate the PDT response in an experimental model of arthritis by P. brasiliensis. For this purpose, male Wistar rats (n = 42) were divided into groups submitted to inoculation with P. brasiliensis and PBS (control) in the right knee joint. After the development of arthritis, the mice were treated from the eighth to the eleventh day to the therapy: Groups L40 and L120 laser treated at dosages of 40 and 120 J/cm2, AM group treated with the photosensitizer methylene blue and PDT40 and PDT120 groups treated with PDT at doses of 40 and 120 J/cm2. The laser and AM therapies were used individually as a control for PDT. The groups were evaluated: edema, by measuring the lateral-lateral diameter of the joint; the intensity of arthritis, for histopathology and titration of anti-gp43 antibody by ELISA. The results showed that the edema formation was lower in the groups treated with PDT 40 and 120 J/cm2 (p = 0.8359 and p = 0.7167, respectively). The analysis of the intensity of arthritis as assessed by histopathology showed that the group treated with PDT 120 J/cm2 had the lowest morphological changes in the joint. Titration of anti-gp43 antibodies, showed the highest production of specific antibodies in the yeast group, but the differences were not significant when comparing the groups. Thus, the morphological evidence of normal tissue recovery aspects, the joint subjected to PDT 120 J/cm2, revealed the potential use of this therapy in reducing arthritis caused by P. brasiliensis A Paracoccidioidomicose (PCM), causada pelo fungo dimórfico Paracoccidioides brasiliensis, é uma das micoses sistêmicas de maior prevalência na América Latina. A infecção pode ocorrer acidentalmente por inoculação direta ou, principalmente, através da inalação de propágulos de P. brasiliensis, que se instalam inicialmente nos pulmões e podem se disseminar para órgãos e tecidos do hospedeiro. Na forma aguda da doença a principal manifestação clínica é a síndrome linfoproliferativa febril, podendo ocorrer acometimento osteoarticular; o mesmo para a forma crônica, onde em 60% dos casos há alterações ósseas e articulares, geralmente tratadas por longos períodos com antifúngicos convencionais. A terapia medicamentosa é a mais utilizada para o controle da doença, entretanto, custos elevados, baixa adesão ao tratamento e efeitos colaterais adversos, levam a necessidade de se pesquisar terapias alternativas, como a fotodinâmica (TFD), que apresenta baixo custo e toxicidade, ação local e não induz resistência aos microorganismos. Estudos in vitro têm demonstrado resultados positivos da TFD contra diversos fungos, mas não existem relatos in vivo sobre sua ação no controle de P. brasiliensis. Nesse sentido, o presente estudo objetivou avaliar a resposta da TFD em modelo experimental de artrite por P. brasiliensis. Para tanto, ratos Wistar machos (n=42), foram distribuídos em grupos submetidos à inoculação de P. brasiliensis e PBS (controle) na articulação do joelho direito. Após o desenvolvimento da artrite, os grupos foram tratados, do oitavo ao décimo primeiro dia com as terapias: grupos L40 e L120 tratados com laser nas dosagens de 40 e 120 J/cm2, grupo AM tradado com o fotossensibilizador azul de metileno e grupos TFD40 e TFD120 tratados com TFD nas dosagens de 40 e 120 J/cm2. Os tratamentos com laser e AM foram utilizados de forma individual como controle para a TFD. Nos grupos foram avaliados: o edema, através da medida do diâmetro látero-lateral da articulação; a intensidade da artrite, por exame histopatológico e a titulação do anticorpo anti-gp43, por ELISA. Os resultados mostraram que, a formação do edema foi menor nos grupos tratados com TFD 40 e 120 J/cm2 (p=0,8359 e p=0,7167, respectivamente). A análise da intensidade da artrite, revelou que o grupo tratado com TFD 120 J/cm2 apresentou as menores alterações morfológicas na articulação. A titulação de anticorpos anti-Gp43, demonstrou a maior produção de anticorpos específicos no grupo levedura, porém as diferenças não foram significativas na comparação entre os demais grupos. Assim, as evidências morfológicas de recuperação de aspectos teciduais normais, na articulação submetida a TFD 120 J/cm2, revelaram o potencial uso desta terapia na redução da artrite causada por P. brasiliensis.
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- 2016
142. Nerve compression and resistance exercise:effects on the morphology of talorural joint in rats
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Vieira, Lizyana, Ribeiro, Lucinéia de Fátima Chasko, Bertolini, Gladson Ricardo Flor, and Brancalhão, Rose Meire Costa
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Neuropatias ,Ciatalgia ,Cartilagem articular ,CIENCIAS BIOLOGICAS::BIOLOGIA GERAL [CNPQ] ,Reabilitação ,Articulação do tornozelo - Abstract
Made available in DSpace on 2017-07-10T14:17:15Z (GMT). No. of bitstreams: 1 DissertaLizyana_ Vieira (1).pdf: 1605588 bytes, checksum: 7e6998e440abedd75e6806c3fa363e76 (MD5) Previous issue date: 2015-12-14 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior An adequate activity of the sciatic nerve is essential for the morphofunctional integrity of the lower limb structures, including the ankle joint or talocrural, responsible for providing a stable base of support for the body, in addition to propel it effectively during locomotion. These motor functions may be affected by changes in the peripheral nervous system by various pathological conditions, such as sciatica, which can be generated through the sciatic nerve compression, leading to functional incapacities. Among the treatment modalities, the resistive exercise stands out, and despite of its widespread use, still shows divergences in literature as to the best type, its intensity and the most indicated period for its outset. Therefore, the objective of this research was to verify the effects of experimental model of nerve compression and treatment with resistive exercise on the morphology of the talocrural joint of Wistar rats. For this purpose, 32 rats were divided into 4 groups (n = 8 / group): G1 (control), G2 (injury), G3 (exercise) and G4 (injury and exercise). Three days after the sciatic nerve compression surgery, groups G3 and G4 were submitted to resistive exercise stair climbing during 21 days. After euthanasia, the talocrural joints followed the protocol for paraffin embedding. The slides were colored with hematoxylin-eosin and Safranin O-Fast Green, photomicrographed and analyzed using Image Pro Plus 6.0®. Data were presented in mean and standard deviation, and ANOVA one way with posttest t was used for comparison. No significant differences in the thickness of the articular cartilage in the tibia and the talus were found. As for the number of chondrocytes in the tibia, G2 and G3 presented more cells in the anterior region of articular cartilage compared to G1, condition reversed in G4 animals. In the talus, there was an increase in the number of chondrocytes in anterior and posterior articular region of G2 and G3, and in G4, this hypercellularity was maintained only in the posterior region. As the central region of the joint, all groups presented a higher cell density compared to G1. In the morphological analysis, in the injury group (G2), changes were observed in the tibia and talus with the presence of flocculation, invagination of the subchondral bone, tidemark discontinuity and presence of pannus in the talus. In the exercise group (G3), discrete alterations were found only in talus and, in G4, the cartilage presented similar characteristics to G1. As for the morphology of the synovial membrane, this showed to be fibrous in the injury group, while in the other groups tissue changes were not noticed. Thus, sciatica led to an increase of the number of chondrocytes mainly in the talus and also produced morphological changes in the cartilage and in the synovial membrane of the talocrural joint, and the resistive physical exercise proved to be effective in the recovery of morphological characteristics of the joint components. Atividade adequada do nervo isquiático é essencial para a integridade morfofuncional das estruturas do membro inferior, entre elas a articulação do tornozelo/talocrural, responsável por proporcionar base estável de suporte para o corpo, além de impulsioná-lo efetivamente durante a locomoção. Essas funções motoras podem ser afetadas por alterações no sistema nervoso periférico pelas mais diversas condições patológicas, como por exemplo a ciatalgia, que pode ser gerada por meio da compressão do nervo isquiático, levando a incapacidades funcionais. Dentre as modalidades de tratamento, destaca-se o exercício resistido, que apesar do seu uso difundido, ainda apresenta divergências na literatura quanto ao melhor tipo, sua intensidade e o período mais indicado para seu início. Assim, o objetivo dessa pesquisa foi verificar os efeitos do modelo experimental de compressão nervosa e o tratamento com exercício resistido sobre a morfologia da articulação talocrural de ratos Wistar. Para tanto, foram utilizados 32 ratos divididos em 4 grupos (n = 8/grupo): G1 (controle), G2 (lesão), G3 (exercício) e G4 (lesão e exercício). Três dias após a cirurgia de compressão do nervo isquiático, os grupos G3 e G4 foram submetidos ao exercício resistido de subida de escada durante 21 dias. Após a eutanásia, as articulações talocrurais seguiram o protocolo para emblocamento em parafina. As lâminas foram coradas com hematoxilina-eosina para análise morfológica geral do tecido e Safranina O-fast Green para cartilagem articular. Posteriormente fotomicrografadas e analisadas através do programa Image Pro Plus 6.0®. Os dados foram apresentados em média e desvio-padrão e para comparação dos diferentes grupos foi utilizado ANOVA one-way com pós teste t. Não foram encontradas diferenças significativas quanto a espessura da cartilagem articular na tíbia e o tálus. Já quanto ao número de condrócitos na tíbia, G2 e G3 apresentaram mais células na região anterior da cartilagem articular em relação a G1, condição revertida nos animais de G4. No tálus, houve um aumento do número de condrócitos tanto na região articular anterior quanto na posterior de G2 e G3, sendo que em G4, esta hipercelularidade se manteve apenas na região posterior. Quanto a região central da articulação, todos os grupos apresentaram uma maior densidade celular em relação ao G1. Na análise morfológica, no grupo lesão (G2), foram verificadas alterações na tíbia e tálus, com presença de floculações, invaginação do osso subcondral, descontinuidade da tidemark e presença de panus no tálus. No grupo exercício (G3), foram encontradas alterações discretas apenas no tálus e em G4, a cartilagem se apresentou com características próximas ao G1. Quanto a morfologia da membrana sinovial, essa se mostrou fibrosa no grupo lesão, sendo que nos demais grupos não foram notadas alterações teciduais. Assim, a ciatalgia levou ao aumento do número de condrócitos principalmente no tálus e também produziu alterações morfológicas na cartilagem e na membrana sinovial da articulação talocrural, e o exercício físico resistido se mostrou eficaz na recuperação das características morfológicas dos componentes articulares.
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- 2015
143. Evaluation of the female sex hormone about bone of obese rats submitted to experimental periodontitis
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Biederman, Poliana de Fátima, Nassar, Patricia Oehlmeyer, Ribeiro, Lucinéia de Fátima Chasko, and Pinto, Shelon Cristina Souza
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Periodontal Disease ,CIENCIAS BIOLOGICAS [CNPQ] ,Bone tissue ,Obesidade ,Doença Periodontal ,Obesity ,Pecido ósseo - Abstract
Made available in DSpace on 2017-07-10T14:17:12Z (GMT). No. of bitstreams: 1 Poliana - cd.pdf: 2397137 bytes, checksum: 9e02b7d7572ba82c2026b9255476d132 (MD5) Previous issue date: 2015-05-26 Obesity has been the subject of several controversies, whether in scientific circles or among the general population. Few subjects call so much attention to society and researchers, whether due to the huge number of obese people worldwide, or due to its potential complications to the health of individuals. Several chronic diseases have been associated with obesity among them periodontal diseases, which may be associated with bone resorption and have its mechanisms intensified in obesity. Nowadays, it is demonstrated that the bone tissue undergoes influence of obesity, so that female sex hormones seem an important link between obesity and bone mass gain in obese patients. Given the importance of obesity and its considerable relation to periodontal disease and bone tissue the aim of this study was to evaluate the effect of the hormonal influence on periodontal tissues of adult female mice in proestrus phase of the estrous cycle, with experimentally induced obesity, through the cafeteria diet, whether or not associated with periodontal disease. For this study 20 adult female mice cycling, in proestrus phase of the estrous cycle were divided into control group (CON), ligature group (LIG), cafeteria group (CAF) and cafeteria and ligature group (CAFLIG). At 75 days of life, the animals from groups LIG and CAFLIG received a ligature around the right mandibular first molar which acted as a gum irritating for 30 days, favoring the accumulation of bacterial plaque and the consequent development of periodontal disease. After euthanasia, at 105 days of life, it was held the blood collection from the right brain stem to determine the estradiol and progesterone concentrations by using specific kits; and the dissection of the right hemi mandible, which was submitted to histological analysis. The obtained data were analyzed and evaluated using the ANOVA and Tukey tests so that the results showed a decrease in the concentration of female sex hormones when obesity and periodontal disease were associated; in the same way it was observed an evident bone resorption and a change in the morphology of the bone tissue in the group CAF/LIG. Based on the results obtained the current study can conclude that the decrease in female sex hormones associated with obesity and periodontal disease negatively influenced on the mandibular bone tissue A obesidade tem sido tema de diversas polêmicas e controvérsias, seja no meio científico ou na população em geral. Poucos assuntos chamam tanto a atenção da sociedade e de estudiosos, quer devido ao elevadíssimo número de pessoas obesas a nível mundial, quer devido às suas potenciais complicações para a saúde dos indivíduos. Diversas doenças crônicas têm sido relacionadas à obesidade, dentre elas as doenças periodontais, as quais podem estar associadas à reabsorção óssea e ter seus mecanismos intensificados na obesidade. Atualmente, demonstra-se que o tecido ósseo sofre influência da obesidade, sendo que os hormônios sexuais femininos parecem um importante elo entre a obesidade e o ganho de massa óssea em pacientes obesos. Dada a importância da obesidade e sua considerável relação com a doença periodontal e o tecido ósseo, o objetivo deste estudo foi avaliar o efeito da influência hormonal nos tecidos periodontais de ratas adultas na fase do proestro do ciclo estral, com obesidade induzida experimentalmente, através da dieta de cafeteria, associada ou não à doença periodontal. Para a realização da pesquisa, 20 ratas fêmeas adultas ciclando, na fase do proestro do ciclo estral, foram divididas em grupo controle (CON), grupo ligadura (LIG), grupo cafeteria (CAF) e grupo cafeteria e ligadura (CAFLIG). Aos 75 dias de vida, os animais dos grupos LIG e CAFLIG receberam uma ligadura ao redor do primeiro molar inferior direito, a qual atuou como irritante gengival por 30 dias, favorecendo o acúmulo de placa bacteriana e o consequente desenvolvimento da doença periodontal. Após a eutanásia, aos 105 dias de vida, realizou-se a coleta de sangue do tronco cerebral direito para a determinação das concentrações de estradiol e progesterona utilizando-se kits específicos; e a dissecação da hemi-mandíbula direita, que foi submetida à análise histológica. Os dados obtidos foram analisados e avaliados por meio dos testes ANOVA e Tukey, sendo que os resultados demonstraram uma diminuição na concentração dos hormônios sexuais femininos quando obesidade e doença periodontal foram associadas; da mesma forma, observou-se reabsorção óssea acentuada e mudança na morfologia do tecido ósseo no grupo CAFLIG. Com base nos resultados obtidos, pode-se concluir que a diminuição nos hormônios sexuais femininos associados à obesidade e à doença periodontal interferiu negativamente no tecido ósseo mandibular
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- 2015
144. Infecção de células da ampola dos túbulos de MALPIGHI de Bombyx Mori pelo Alphabaculovirus
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Santorum, Marilucia, Santos, Daniela Carvalho dos, Beu, Célia Cristina Leme, Brancalhão, Rose Meire Costa, and Ribeiro, Lucinéia de Fátima Chasko
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Lepidoptera ,CIENCIAS BIOLOGICAS [CNPQ] ,BmNPV ,Silkworm ,Bicho-da-seda ,Baculoviridae - Abstract
Made available in DSpace on 2017-07-10T14:17:10Z (GMT). No. of bitstreams: 1 AMPOLA DOS _ MALPIGHI DE Bombyx mori PELO ALPHABACULOVIRUS.pdf: 2176663 bytes, checksum: 866566cf54573cb621db0597bbb30516 (MD5) Previous issue date: 2015-02-24 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Bombyx mori nucleopolyhedrovirus (BmNPV) is an entomopathogenic virus Baculoviridae family, Alphabaculovirus genre, which infects the silkworm, Bombyx mori and causes nuclear polyhedrosis disease. A viral geographic isolated from BmNPV was identified in the state of Paraná, Brazil, and a number of organs and target tissues were identified, but there is no information about the infection of Malpighian tubules (MT). MT make up the excretory system of B. mori, acting in the elimination of toxic substances and electrolyte homeostasis. This study aimed to analyze the behavior on the susceptibility and cytopathology of MT B. mori to BmNPV. Therefore, hybrid B.mori caterpillars at 5º instar, were inoculated experimentally with a viral suspension of BmNPV. On different days post-inoculation (dpi), the 4° to 9° dpi, MT segments were collected, divided in regions of the ampullae, proximal, medial and distal; following the processing for light and electron microscopy transmission. Material control followed the same process that the inoculated. The results showed that B. mori MT showed variations in their morphology and susceptibility to BmNPV according to the analyzed region. Thus, the region of the ampullae in its transition area to the proximal, appeared susceptible to BmNPV, from 6° dpi, while other regions showed no evidence of infection by the pathogen. The transition area is a small region which is located at the end of the ampullae and the beginning of the proximal region of MT. The cellular morphology of simple lining epithelium showed continuous variation of pavement, characteristic of the ampullae, the cylindrical, in the transition area; already continuous with the proximal region of MT, this morphological change was abruptly. The cytopathology revealed in hypertrophic nucleus, viroplasm containing the nucleocapsid and viral polyhedra. At the end of the infectious cycle was observed cytolysis of infected cells, releasing polyhedra in the extracellular medium, both in hemocele as in MT lumen, a factor that may favor the transmission of the disease. Thus, infection of the ampullae in its transition area to the proximal region, will contribute to greater scientific knowledge of cytopathology aspects and targets of infection from this virus isolated geographical, for the establishment of its infectious cycle of the insect's body BmNPV Bombyx mori nucleopolyhedrovirus (BmNPV) é um vírus entomopatogênico da família Baculoviridae, gênero Alphabaculovirus, que infecta o bicho-da-seda, Bombyx mori (Lepidoptera: Bombycidae) e causa a doença poliedrose nuclear. Um isolado geográfico viral do BmNPV foi identificado no estado do Paraná, Brasil, e uma série de órgãos e tecidos alvos foram identificados, porém não há informações sobre a infecção dos túbulos de Malpighi (TM). Os TM compõem o sistema excretor de B. mori, atuando na eliminação de substâncias tóxicas e na homeostase hidroeletrolítica. Assim, este estudo objetivou analisar o comportamento referente à susceptibilidade e citopatologia dos TM de B. mori ao BmNPV. Para tanto, lagartas híbridas de B. mori, 5° instar, foram inoculadas experimentalmente com uma suspensão viral de BmNPV. Em diferentes dias pós-inoculação (dpi), do 4° ao 9° dpi, segmentos dos TM foram coletados, subdivididos nas regiões da ampola, proximal, média e distal; seguindo o processamento para as microscopias de luz e eletrônica de transmissão. Material controle seguiu o mesmo processamento que o inoculado. Os resultados demonstraram que os TM de B. mori, apresentaram variação na sua morfologia e susceptibilidade ao BmNPV de acordo com a região analisada. Assim, a região da ampola, na sua área de transição com a proximal, se apresentou susceptível ao BmNPV, a partir do 6° dpi, enquanto as demais regiões não evidenciaram indícios de infecção pelo patógeno. A área de transição é uma pequena região que se localiza ao término da ampola e inicio da região proximal do TM. A morfologia celular do epitélio de revestimento simples apresentou variação continua de pavimentoso, característico da ampola, a cilíndrico, na sua área de transição; já na continuidade com a região proximal do TM, esta variação morfológica foi abrupta. A citopatologia revelou no núcleo hipertrófico, o viroplasma, contendo os nucleocapsídeos e os poliedros virais. Ao final do ciclo infeccioso foi verificado a citólise de células infectadas, liberando poliedros no meio extracelular, tanto na hemocele como no lúmen do TM, fator que pode favorecer a transmissão da doença. Assim, a infecção da ampola, na sua área de transição com a região proximal, irá contribuir com um maior conhecimento científico dos aspectos citopatológicos e dos alvos de infecção deste isolado geográfico viral, visando o estabelecimento do seu ciclo infeccioso do BmNPV no corpo do inseto.
- Published
- 2015
145. Effects of immobilization and remobilization by swimming and jumping in water on the morphology of the ankle joint and the soleus and tibialis anterior muscles of mice
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Kunz, Regina Inês and Ribeiro, Lucinéia de Fátima Chasko
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CIENCIAS DA SAUDE [CNPQ] ,Terapia aquática ,Aquatic therapy ,ankle joint ,músculo esquelético ,articulação do tornozelo ,skeletal muscle ,synovial joint ,cartilage ,articulação sinovial ,cartilagem - Abstract
Made available in DSpace on 2017-07-10T14:17:04Z (GMT). No. of bitstreams: 1 Regina Kunz.pdf: 2633664 bytes, checksum: ba62a763b7744580d9ca3b1f84d6f021 (MD5) Previous issue date: 2014-02-26 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Immobilization is a therapeutic modality that is used in the treatment of musculoskeletal disorders, which often cause tissue morphological changes, and which can be reversed by remobilization. This study examined the effects of immobilization and remobilization on morphological parameters of the ankle joint and the soleus and tibialis anterior muscles of Wistar rats. Eighteen male rats had their right hind limb immobilized for 15 days. They were divided into the following 3 groups: G1, simply immobilized; G2, remobilized freely for 14 days; and G3, remobilized by exercises in water, performed on alternate days with progression in terms of the time and number of exercises. The contralateral limb was used as control. After the experimental period, the ankle, right (immobilized/remobilized) and left (control) joints, and the soleus and tibialis anterior muscles were processed for analysis using light microscopy. For the analysis of the ankle, three fields of distinct interest were identified in the sagittal section as follows: P1, anterior articular extremity (near the phalanges); P2, middle region of the joint; P3, posterior articular extremity. Histomorphometry revealed no significant differences between the groups and members, control and imobilized/remobilized, in terms of the number of chondrocytes and the thickness of the articular cartilage of the tibia and the talus. The morphological analysis of G1 showed the most significant degenerative lesions in the talus, such as exposure of the subchondral bone, flocculation and cracks between the middle and anterior regions of the articular cartilage, as well as the synovial membrane. Remobilization by exercises in water showed positive effects on the recovery of the ankle joint, compared with free remobilization. In the muscles, immobilization produced significant changes in the morphometric parameters of the soleus; in the tibialis anterior it only caused a change in muscle mass. However, there were changes in the morphology of the tibialis anterior, which showed polymorphic fibers and necrosis, as well as changes in the connective tissue. Swimming, combined with jumping in water, increased the smallest diameter of the fiber of the soleus muscle. Both free remobilization, and remobilization using exercises, increased the mass and the length of the tibialis anterior muscle, as well as its morphology A imobilização é uma modalidade terapêutica utilizada no tratamento de distúrbios musculoesqueléticos que com frequencia causa alterações morfológicas teciduais, as quais podem ser revertidas pela remobilização. Este estudo analisou o efeito da imobilização e da remobilização sobre parâmetros morfológicos da articulação talocrural e dos músculos sóleo e tibial anterior de ratos Wistar. Foram utilizados 18 ratos machos, que tiveram seu membro posterior direito imobilizado por 15 dias, e divididos em 3 grupos: G1, somente imobilizados; G2, remobilizados livremente por 14 dias; e G3, remobilizados em meio aquático por 14 dias, realizados em dias alternados com progressão de tempo e série dos exercícios. O membro contralateral foi utilizado como controle. Após o período experimental, as articulações talocrurais, direitas (imobilizadas/remobilizadas) e esquerdas (controle), e os músculos sóleo e tibial anterior foram processados para análises em microscopia de luz. Para a análise da articulação talocrural, nos cortes sagitais foram identificados três campos de interesse distintos, sendo: P1, extremidade articular anterior (próxima as falanges); P2, região média da articulação; P3, extremidade articular posterior. A histomorfometria não revelou diferenças significativas entre os grupos e os membros, controle e imobilizado/remobilizado, no número de condrócitos e na espessura da cartilagem articular da tíbia e do tálus. A análise morfológica de G1 evidenciou lesões degenerativas mais significativas no tálus, como exposição do osso subcondral, floculações e fissuras, entre as regiões anterior e média da cartilagem articular; bem como na membrana sinovial. A remobilização por exercícios em meio aquático, apresentou efeitos positivos na recuperação da articulação do tornozelo, quando comparada com a remobilização livre. Nos músculos, a imobilização produziu alterações significativas sobre os parâmetros histomorfométricos do sóleo e, no tibial anterior, causou alteração somente na massa muscular. No entanto, verificou-se alterações na sua morfologia, que apresentou fibras polimórficas e em necrose, assim como alterações no tecido conjuntivo. A natação combinada com o salto em meio aquático aumentaram o menor diâmetro da fibra do músculo sóleo. Tanto a remobilização livre quanto por associação dos exercícios aumentaram a massa e o comprimento muscular do tibial anterior, bem como melhoraram seus aspectos morfológicos
- Published
- 2014
146. Citopatologia causada pelo Alphabaculovirus no sistema traqueal de Bombyx mori (Lepidóptera: Bombycidae)
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Madureira, Jéssica Vencatto Senem, Brancalhão, Rose Meire Costa, Ribeiro, Lucinéia de Fátima Chasko, and Oliveira, Renato Cassol de
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Lepidoptera ,Citopatologia viral ,Viral cytopathology ,CIENCIAS BIOLOGICAS [CNPQ] ,Sericicultura ,Traqueias ,Tracheas ,Baculoviridae ,Sericulture - Abstract
Made available in DSpace on 2017-07-10T14:17:13Z (GMT). No. of bitstreams: 1 Dissertacao -16.pdf: 1891470 bytes, checksum: 1b28975beba2d1e4f43d3a0f9f79a9aa (MD5) Previous issue date: 2014-02-11 Bombyx mori is an insect of the order Lepidoptera that is only found only in germplasm banks; it is used in scientific research and for commercial purposes. In the latter case, the silk cocoon, which is produced at the end of the 5th larval instar, is used in the production of various yarns and fabrics. This branch of Brazilian agribusiness, known as sericulture, is well developed in the state of Paraná, where it is a form of small-scale family farming. Several factors impact negatively on Brazilian sericulture, such as diseases during rearing, and B. mori is susceptible to a virus from the Baculoviridae family, namely, Bombyx mori multiple nucleopolyhedrovirus (BmMNPV), genus Alphabaculovirus (AlphaBV), which infects the larvae and jeopardises commercial production of the cocoon, causing losses to farmers and industry. Studies have proved that BmMNPV is polyorganotropic and there are several target organs, such as the tracheal system; however, details of its cytopathology are not known. The tracheal system is responsible for the aeration of the tissues of the insect. Thus, the present study aimed to describe the cytopathology of the tracheas of hybrid larvae of B. Mori, infected experimentally with BmMNPV, and isolated geographically in the state of Paraná. Fifth instar hybrid larvae were divided into two groups; one control, and the other inoculated. After ingestion, and on different days post-inoculation (dpi), from the 2nd to the 9th dpi, the larvae were anesthetized and dissected. Segments of organs such as the integument, muscle and silk gland, containing branches of the trachea, were collected and fixed in Karnovsky modified for transmission electron microscopy. On the 2st dpi, fresh hemolymph analysis was conducted in order to determine the susceptibility of the hemocytes. The results revealed that the hemocytes were infected from the 2nd dpi and the epithelial cells of the trachea were infected from the 4th dpi. The cytopathology of the tracheal cells showed hypertrophic nucleus, containing the viroplasm, the site of the synthesis of the nucleocapsids. Subsequently, the formation and development of the polyhedra occured, accentuating the nuclear hypertrophy and culminating in cell lysis. Virions were also observed, immersed in the basal lamina of the trachea, which appeared to be disorganized. Thus, the cytopathology of the trachea was consistent with the infection caused by AlphaBV, and the data that was obtained provides a better understanding of the infectious cycle of BmMNPV in the body of the insect. The time of infection, later for the hemocytes, and the presence of virions in the basal lamina of the trachea, indicated that this system is a secondary target for infection, and also that the hemolymph is an important dispersant of viral infection Bombyx mori é um inseto da ordem Lepidoptera encontrado somente em bancos de germoplasma, sendo utilizado em pesquisas científicas e para fins comerciais. Neste caso, seu casulo de seda, construído ao final do 5º instar larval, é usado na produção de diversos fios e tecidos. Este ramo da agroindústria brasileira, conhecido como sericicultura, se apresenta bem desenvolvido no Estado do Paraná, estando incluído no programa de agricultura familiar. Vários são os fatores que exercem influência na sericicultura nacional, como as doenças, e B. mori é susceptível a um vírus da família Baculoviridae, o Bombyx mori multiple nucleopolyhedrovirus (BmMNPV), gênero Alphabaculovirus (AlphaBV). Ao infectar as lagartas o vírus compromete a produção comercial do casulo, causando prejuízos aos produtores rurais e a indústria. Estudos comprovam que o BmMNPV é poliorganotrófico e vários são os órgãos-alvos, como o sistema traqueal; entretanto, detalhes de sua citopatologia não são conhecidos. O sistema traqueal é responsável pela aeração dos tecidos do inseto e o presente estudo objetivou descrever a citopatologia das traqueias de lagartas híbridas de B. mori infectadas experimentalmente pelo BmMNPV, isolado geográfico do Paraná. Para tanto, lagartas híbridas de 5º instar foram divididas em dois grupos, controle e inoculado. Neste, o inóculo viral foi fornecido na alimentação e em diferentes dias pós-inoculação (dpi), do 2º ao 9º dpi, as lagartas foram anestesiadas e dissecadas; segmentos do tegumento, músculo e glândula da seda, contendo ramos da traqueia, foram coletados e fixados em Karnovsky modificado para a microscopia eletrônica de transmissão. No 2º dpi foi efetuada análise a fresco da hemolinfa, para averiguar a susceptibilidade dos hemócitos. Os resultados revelaram que os hemócitos se apresentaram infectados a partir do 2º dpi e as células epiteliais da traqueia a partir do 4° dpi. A citopatologia das células traqueais revelou núcleo hipertrófico, contendo o viroplasma, que é o local de síntese dos nucleocapsídeos. Posteriormente, houve a formação e o desenvolvimento dos poliedros, acentuando-se a hipertrofia nuclear e culminando com a citólise. Vírions também foram visualizados na lâmina basal da traqueia, que se apresentou desorganizada. Assim, a citopatologia da traqueia condiz com a infecção causada por AlphaBV, e as informações obtidas permitem um melhor entendimento do ciclo infeccioso do BmMNPV no corpo do inseto. O tempo de infecção, posterior ao dos hemócitos, e a presença de vírions na lâmina basal da traqueia, indicam que este sistema é alvo secundário e, ainda, que a hemolinfa se apresenta como um importante dispersor da infecção viral.
- Published
- 2014
147. Susceptibilidade do piloro de Bombyx mori (Lepidoptera, bombycidae) ao bombyx mori multiple nucleopolyhedrovirus
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Baggio, Mayarha Patricia Dequigiovanni, Brancalhão, Rose Meire Costa, and Ribeiro, Lucinéia de Fátima Chasko
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Pyloric cone ,Intestino posterior ,CIENCIAS DA SAUDE [CNPQ] ,Pyloric valve ,Cone pilórico ,Alphabaculovirus ,Hindgut ,Válvula pilórica ,Anel intersticial posterior ,Posterior interstitial ring - Abstract
Made available in DSpace on 2017-07-10T14:17:04Z (GMT). No. of bitstreams: 1 Mayaha.pdf: 4416602 bytes, checksum: 8b663982eaff70076dc570733618b841 (MD5) Previous issue date: 2013-08-01 Bombyx mori multiple nucleopolyedrovirus (BmMNPV) is an entomopathogenic virus of the Baculoviridaefamily, genera Alphabaculovirus, which infects the silkworm (Bombyx Mori) and causes nuclear polyhedrosis disease. This virus is poliorganotrophic and a series of tissues are known as targets; however, literature does not present information in regards to the pylorus, segment of the hindgut, present in the transition with the midgut and responsible for regulating the passage of food towards the ileum. The organ is, thus, of fundamental importance in the ending of the digestive process, affecting the insect s metabolic balance and, the present study sought to analyze its susceptibility and cytopathology in regards to BmMNPV, geographic isolate of Paraná, Brazil. Moreover, due to the complexity of this segment, its general morphology will also be analyzed. In order to do so, hybrid B.mori caterpillars at 5º instar were inoculated experimentally with a viral suspension of BmMNPV. On different day post-inoculation (dpi), from 2º to 9ºdpi, segments of the intestine, containing the pylorus, with its subdivisions (posterior interstitial ring, pyloric cone and pyloric valve), were dissected, following the routine histological processing for paraffin wax blockage and dyes in haematoxylin and eosin, for general morphology analysis, and in modified Azan staining, for cytopathology. Segments also processed to form scanning electronic microscope for analized of morphological details. So the pylorus general morphology the caterpillars of B. mori, was similar to that observed in other insects. The cytopathology showed that the anterior area of the posterior interstitial ring is a secondary target of infection for the BmMNPV, after 5º dpi, and its infectious cycle is similar to that described in literature. In the hypertrophic nucleus one there the formation of viroplasm, place for production of enveloped nucleocapsids or virions, following the formation and development of the polyhedra. Later on, cytolysis occurred, promoting the liberation of polyhedra and the spreading of the disease, mainly in the B. mori creation sheds. The posterior area of the posterior interstitial ring, the pyloric cone and the pyloric valve did not reveal any traces of infection by BmMNPV and, thus, resistance mechanisms involving genetic factors could be acting. The knowledge obtained from this work will contribute in the establishment of the infectious cycle of this important entomopathogenic virus, which may lead to an epizootic that can negatively affect the whole productive chain of silk Bombyx mori multiple nucleopolyedrovirus (BmMNPV) é um vírus entomopatogênico da família Baculoviridae, gênero Alphabaculovirus, que infecta o bicho-da-seda (Bombyx mori) e causa a doença poliedrose nuclear. Este vírus é poliorganotrófico e uma série de tecidos são conhecidos como alvos; contudo, a literatura não apresenta informações sobre o piloro, segmento do intestino posterior, presente na transição com o médio e responsável pela regulação da passagem do alimento em direção ao ileo. O órgão é assim de fundamental importância na finalização do processo digestório, afetando o equilíbrio metabólico do inseto e, o presente estudo objetivou analisar sua susceptibilidade e citopatologia frente ao BmMNPV, isolado geográfico do Paraná, Brasil. Ainda, devido a complexidade deste segmento, também será analisada sua morfologia geral. Para tanto, lagartas híbridas de B. mori no 5° instar foram inoculadas experimentalmente com uma suspensão viral de BmMNPV. Em diferentes dias pós-inoculação (dpi), do 2° ao 9° dpi, segmentos do intestino, contendo o piloro, com suas subdivisões (anel intersticial posterior, cone pilórico e válvula pilórica), foram dissecados, seguindo o processamento histológico de rotina para emblocamento em parafina e colorações em hematoxina e eosina, na análise da morfologia geral, e em Azan modificado, para a citopatologia. Segmentos também foram processados em microscopia eletrônica de varredura para análise de detalhes morfológicos. Assim, a morfologia geral do piloro das lagartas da B. mori foi semelhante à observada em outros insetos. A citopatologia mostrou que a área anterior do anel intersticial posterior é alvo secundário de infecção pelo BmMNPV, a partir do 5° dpi, e seu ciclo infeccioso é semelhante ao descrito em literatura. No núcleo hipertrófico houve a formação do viroplasma, local de produção dos nucleocapsídeos envelopados ou virions, seguindo a formação e o desenvolvimento dos poliedros. Posteriormente, ocorreu a citólise, promovendo a liberação dos poliedros e disseminação da doença, principalmente nos barracões de criação de B. mori. A área posterior do anel intersticial posterior, o cone pilórico e a válvula pilórica não revelaram quaisquer indícios de infecção pelo BmMNPV e, desta forma, mecanismos de resistência envolvendo fatores genéticos poderiam estar atuando. Os conhecimentos obtidos irão contribuir no estabelecimento do ciclo infeccioso deste importante vírus entomopatogênico, cuja conseqüência de uma epizootia pode afetar negativamente toda a cadeia produtiva da seda
- Published
- 2013
148. Maternal periodontitis potentiates monosodium glutamate-obesity damage on Wistar offspring's fast-glycolytic muscle.
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Costa LNC, de Paula TP, Zazula MF, Naliwaiko K, Nassar CA, Bertolini GRF, Torrejais MM, Ribeiro LFC, and Costa RM
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- Animals, Female, Rats, Pregnancy, Male, Prenatal Exposure Delayed Effects, Tumor Necrosis Factor-alpha metabolism, Cytokines metabolism, Sodium Glutamate adverse effects, Rats, Wistar, Muscle, Skeletal pathology, Obesity complications, Obesity metabolism, Periodontitis pathology, Periodontitis metabolism, Periodontitis complications
- Abstract
Objective: To evaluate the effects of magnifying the damage caused by obesity induced by monosodium glutamate, using a model of maternal periodontitis, on the structure of the anterior tibialis muscle of the offspring., Materials and Methods: Twenty-four female Wistar rats were divided into four experimental groups: control (n = 6), obese (n = 6), control with periodontitis (n = 6) and obese with periodontitis (n = 6). At 78 days of life, the rats were mated with males without any experimental intervention. The offspring of these rats (n = 1/L), at 120 days of life, were weighed and measured, then euthanized. Plasma was collected for analysis of cytokines IL-6, IL-10, IL-17 and TNF-α. Adipose tissues were collected and weighed, and the anterior tibial muscle was designated for histomorphological analyses (n = 6/group)., Results: Monosodium glutamate offspring showed significant muscle changes, such as a reduction in the size of fibres and neuromuscular junctions, and an increase in the nucleus and capillaries. However, all these changes were more expressed in monosodium glutamate-obese with periodontitis offspring., Conclusion: This leads us to suggest a magnifying effect promoted by periodontitis to the damage already well described by monosodium glutamate-obesity, determined by low-intensity inflammation, causing greater muscle damage., (© 2024 Wiley Periodicals LLC.)
- Published
- 2024
- Full Text
- View/download PDF
149. Remobilization with whole-body vibration improves functionality, histomorphometric parameters, and AQP1 expression in the soleus muscle of Wistar rats.
- Author
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Wutzke MLS, Zazula MF, Peretti AL, Marin E, Gomes JC, de Carvalho AR, Beu CCL, Costa RM, Ribeiro LFC, and Bertolini GRF
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- Animals, Rats, Male, Immobilization methods, Rats, Wistar, Vibration, Aquaporin 1 metabolism, Muscle, Skeletal metabolism, Muscle, Skeletal physiology
- Abstract
Background: Whole-body vibration (WBV) is used to enhance physical performance in sports and rehabilitation. The present study analyzed the effects of remobilization with WBV on the soleus muscle of Wistar rats., Methods: Twenty-eight animals were separated into four experimental groups (n = 7): CON (control); IM (immobilized); FR (immobilization and free remobilization); and WBV (immobilization and remobilization with WBV). The immobilization of the pelvic limb was carried out according to the standard protocol using a plaster cast for 15 days. For remobilization with WBV, a Frequency of 60 Hz was applied for 10 min, five days a week, for two weeks. After the remobilization period, the animals were euthanized, and the right soleus muscle was dissected followed by processing for histomorphometric analysis and immunolocalization of Aquaporin 1 (AQP1)., Results: We observed a reduced larger diameter in IM compared to CON, with restored values in WBV. For the estimation of connective tissue, a significant increase was observed in the immobilized groups, while a reduction was noted in the remobilized groups. AQP1 expression decreased significantly in IM and increased in WBV., Conclusion: Immobilization caused morphofunctional damage to the soleus muscle, and remobilization with WBV is efficient and offers advantages over free remobilization.
- Published
- 2024
- Full Text
- View/download PDF
150. Resistance exercise and low-level laser therapy improves grip strength and morphological aspects in the ankle joint of Wistar rats with experimental arthritis.
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Retameiro ACB, Neves M, Tavares ALF, Boaro CT, Rodriguez DFS, Leal TSDS, Costa RM, Bertolini GRF, and Ribeiro LFC
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- Humans, Rats, Male, Animals, Rats, Wistar, Ankle Joint, Hand Strength, Low-Level Light Therapy, Resistance Training, Arthritis, Experimental radiotherapy
- Abstract
Rheumatoid arthritis (RA) is an inflammatory disease mainly affecting synovial joints. Photobiomodulation through low-level laser therapy (LLLT) and resistance exercise may improve the inflammatory process. Therefore, we analyzed the effects of resistance exercise, LLLT, and the combination of both treatments on hind paw grip strength and ankle joint histomorphometric aspects of Wistar rats subjected to experimental RA. A total of 64 male Wistar rats were divided into eight groups: control, control LLLT, control exercise, control LLLT and exercise, arthritis, arthritis LLLT, arthritis exercise, and arthritis LLLT and exercise groups. The experimental RA was induced by a complete Freund's adjuvant injection into the knee joint cavity. Climbing exercises and LLLT (660 nm; 5 J/cm
2 per point) were performed as the treatment. In addition, muscle strength was evaluated using the grip strength test, and morphometric evaluations were performed on the ankle joint. Generalized mixed models and multivariate analysis of variance tests were used for statistical analysis. Statistical significance was set at a p-value of .05. Arthritis LLLT, exercise, and LLLT and exercise had positive effects on grip strength between the groups (F[7.56] = 5.8, p < .004) and within the groups (F[4.3] = 9.9, p < .002) throughout the evaluations. Morphometry revealed degenerative lesions in the ankle joint as subintima with angiogenesis, inflammatory cells, flocculated articular cartilage, chondrocyte disorganization, and pannus in the arthritis group (p < .001). The treated groups exhibited morphological characteristics similar to those of the control group. LLLT and resistance exercise restored muscle strength and morphological aspects of the ankle joint in rats with experimentally induced RA., (© 2022 American Association for Anatomy.)- Published
- 2023
- Full Text
- View/download PDF
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