12 results on '"Corcini, Carine Dahl"'
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2. Effects of Experimental Lead Exposure on Testis of the Chestnut Capped Blackbird Chrysomus ruficapillus
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Leidens, Danusa, Bianchini, Adalto, Varela Junior, Antonio Sergio, Barcarolli, Indianara Fernanda, Rosa, Carlos Eduardo, Bonnel, Josiane, Calabuig, Cecilia Perez, and Corcini, Carine Dahl
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- 2018
- Full Text
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3. Reproductive parameters of double transgenic zebrafish (Danio rerio) males overexpressing both the growth hormone (GH) and its receptor (GHR)
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Silva, Ana Cecilia Gomes, Almeida, Daniela Volcan, Nornberg, Bruna Felix, Pereira, Jessica Ribeiro, Pires, Diego Martins, Corcini, Carine Dahl, Junior, Antonio Sergio Varela, and Marins, Luis Fernando
- Published
- 2017
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4. The effects of osmolality on sperm quality in Jenynsia multidentata (Cyprinodontiformes: Anablepidae)
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da Silva, Janaína Camacho, Varela Junior, Antonio Sergio, Caldas, Jôsie Shwartz, da Silva Freitas, Clarissa, Botelho, Joziel Gonçalves, Colares, Elton Pinto, and Corcini, Carine Dahl
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- 2016
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5. EFEITO CRIOPROTETOR DE DIFERENTES CONCENTRAÇÕES DO DIMETILSULFÓXIDO NO CONGELAMENTO DE SÊMEN DE TAMBAQUI Colossoma macropomum
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Varela Junior, Antonio Sergio, Corcini, Carine Dahl, Streit Junior, Danilo Pedro, Rizzoto, Guilherme, Jardim, Rodrigo Desessards, Lucia Junior, Thomaz, and Figueiredo, Mario Roberto Chim
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Cryopreservation ,Fish ,Migrador ,Criopreservação ,Migratory ,General Medicine ,Esperma ,Peixe ,Sperm - Abstract
O objetivo deste trabalho foi avaliar o efeito do diluente com dimetilsulfóxido (DMSO) sobre a estrutura e funcionalidade do espermatozóide de tambaqui Colossoma macropomum criopreservado. O sêmen foi diluído 1/9 (v/v) em Beltsville Thawing Solution acrescido de 5, 10, 15 e 20% de DMSO. Após dois minutos foi congelado em botijão dry shipper (-76°C/12h), sendo armazenado em botijão de NL (-196°C). Após 15 dias o sêmen criopreservado foi avaliado quanto às taxas de motilidade, latência, fertilização, eclosão, integridade de membrana e de DNA, funcionalidade mitocondrial e viabilidade. As taxas de fertilização e eclosão com 10% DMSO não diferiram (P > 0,05) do sêmen fresco. Os diluentes com 5 e 10% de DMSO foram superiores (P < 0,05), nas avaliações de motilidade, latência e integridade de DNA do espermatozóide, às concentrações 15 e 20%. Entretanto, a viabilidade celular nas concentrações 5 e 10% de DMSO foi inferior (P < 0,05) à obtida com 20% de DMSO, enquanto com 15% de DMSO não diferiu (P > 0,05) das demais concentrações. Considerando os resultados in vivo e in vitro, nas condições experimentais relatadas, o DMSO na concentração de 10% foi associado à melhor manutenção da qualidade de sêmen criopreservado de Tambaqui. The objective of this study was to evaluate the effect of an extender including dimethylsulfoxide (DMSO) on the structure and functionality of frozen sperm of tambaqui Colossoma macropomum. Sperm was extended 1/9 (v/v) in Beltsville Thawing Solution including 5%, 10%, 15% and 20% DMSO. After two minutes, sperm was frozen in dry shipper (-76 °C/12h) and subsequently stored in liquid nitrogen (-196 °C). After 15 days, sperm was evaluated according to: motility; latency period; fertilization and hatching rates; membrane and DNA integrity; mitochondrial functionality, and viability. Fertilization and hatching rates with 10% DMSO did not differ from those with fresh sperm (P > 0.05). Extenders including 5% and 10% DMSO presented greater (P < 0.05) sperm motility, latency period and DNA integrity than extenders including 15% and 20% DMSO. However, sperm viability with 5% and 10% DMSO was lower (P < 0.05) than with 20% DMSO, but for the extender with 15% DMSO, sperm viability was similar to that with other concentrations (P > 0.05). Considering those results, the extender with 10% DMSO was associated with improved quality of frozen sperm of Tambaqui.
- Published
- 2012
6. Effects of Experimental Lead Exposure on Testis of the Chestnut Capped Blackbird <italic>Chrysomus ruficapillus</italic>.
- Author
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Leidens, Danusa, Bianchini, Adalto, Varela Junior, Antonio Sergio, Barcarolli, Indianara Fernanda, Rosa, Carlos Eduardo, Bonnel, Josiane, Calabuig, Cecilia Perez, and Corcini, Carine Dahl
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PHYSIOLOGICAL effects of lead ,TESTIS physiology ,BLACKBIRDS ,OXIDATIVE stress ,SPERMATOZOA analysis ,CAPTIVE wild animals - Abstract
Lead (Pb) effects on testis histology, as well as sperm quality and oxidative status were evaluated in male Chestnut Capped Blackbird (
Chrysomus ruficapillus ). Wild blackbirds were captured, immediately sampled (field group) or kept in captivity and treated with a single intraperitoneal injection of saline solution (control) or saline solution with Pb acetate (50 or 100 mg/kg Pb). Seven days after injection, whole blood, ductus deferens and testis samples were collected. Increased Pb concentrations were observed in whole blood and testis of Pb-exposed blackbirds with respect to those from field and control blackbirds. Sperm cells of Pb-exposed blackbirds showed loss of membrane integrity, mitochondrial functionality, and DNA integrity. Also, oxidative damage was observed in testis of blackbirds injected with 100 mg/kg Pb. These findings indicate that Pb is accumulated in testis ofC. ruficapillus , inducing severe morphological and biochemical injury that can compromise the reproductive performance of male blackbirds. Although the exposure scenario (Pb acetate, high dosage and intraperitoneal injection) tested in the present study would likely not occur in the wild, it was adequate to show potential and relevant toxic effects of Pb in wild birds. [ABSTRACT FROM AUTHOR]- Published
- 2018
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7. Evaluation of amides and centrifugation temperature in boar semen cryopreservation
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Bianchi, Ivan, Calderam, Kérlin, Maschio, Éder Francisco, Madeira, Elisângela Mirapalheta, Ulguim, Rafael da Rosa, Corcini, Carine Dahl, Bongalhardo, Denise Calisto, Corrêa, Érico Kunde, Lucia Júnior, Thomaz, Deschamps, João Carlos, and Corrêa, Marcio Nunes
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Glycerol ,Cryoprotectant ,Amides ,Boar semen cryopreservation ,Sperm - Abstract
Submitted by Maria Beatriz Vieira (mbeatriz.vieira@gmail.com) on 2010-10-08T16:03:20Z No. of bitstreams: 1 Theriogenology - Bianchi et al 2008 - Congelamento de sêmen suíno com amidas.pdf: 275366 bytes, checksum: ad7c4c69d8e1462e723c5ec2fd192bd4 (MD5) Made available in DSpace on 2010-10-08T16:03:20Z (GMT). No. of bitstreams: 1 Theriogenology - Bianchi et al 2008 - Congelamento de sêmen suíno com amidas.pdf: 275366 bytes, checksum: ad7c4c69d8e1462e723c5ec2fd192bd4 (MD5) Previous issue date: 2008 Two experiments were conducted to evaluate the use of amides as cryoprotectants and two centrifugation temperatures (15 or 24 8C) in boar semen cryopreservation protocols. Semen was diluted in BTS, cooled centrifuged, added to cooling extenders, followed by the addition of various cryoprotectants. In experiment 1, mean ( S.E.M.) sperm motility for 5% dimethylformamide (DMF; 50.6 1.9%) and 5% dimethylacetamide (DMA; 53.8 1.7%) were superior (P < 0.05) to 5% methylformamide (MF;43.2 2.4%) and 3% glycerol (GLY; 38.1 2.3%), with no significant difference between MF and GLY. Sperm membrane integrity was higher (P < 0.05) for DMA than for MF or GLY (50.9 1.9, 43.3 2.5, and 34.5 2.8%, respectively). Sperm membrane integrity was higher in DMF (47.9 2.1%) than in glycerol (34.5 2.8%, P < 0.05), but was similar to other treatments (P > 0.05). In experiment 2, we tested MF, DMF, and DMA at 3, 5, and 7%. Sperm motility and membrane integrity were higher for 5% DMA (53.8 1.7 and 50.9 1.9%) and 5% DMF (50.6 1.9 and 47.9 2.1%), in comparison with 7% DMF and all MF concentrations (P < 0.05). For sperm motility and membrane integrity, 5% DMA exceeded (P < 0.05) 3% DM, with greater membrane integrity than 3% DMF (P < 0.05). In both experiments, sperm motility and membrane integrity were superior at 15 8C versus 24 8C (P < 0.05), with no interaction between centrifugation temperature and treatments (P > 0.05). In conclusion, boar semen was successfully cryopreserved by replacement of glycerol with amides (especially 5% DMA) and centrifugation at 15 8C, with benefits for post-thaw sperm motility and membrane integrity.
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- 2008
8. Cryopreservation of boar semen: progress and perspectives.
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Cardoso, Tainã Figueiredo, Silva, Estela Fernandes e, and Corcini, Carine Dahl
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BOARS ,CRYOPRESERVATION of organs, tissues, etc. ,BIOSECURITY ,SEMEN analysis ,IMMUNOLOGICAL adjuvants ,THERAPEUTICS - Abstract
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- Published
- 2013
9. The herbicide atrazine affects sperm quality and the expression of antioxidant and spermatogenesis genes in zebrafish testes.
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Bautista, Felix Esteban Airahuacho, Varela Junior, Antonio Sergio, Corcini, Carine Dahl, Acosta, Izani Bonel, Caldas, Sergiane Souza, Primel, Ednei Gilberto, and Zanette, Juliano
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ATRAZINE , *ANTIOXIDANTS , *GENE expression in fishes , *FISH reproduction , *SPERMATOGENESIS , *TESTIS physiology , *ZEBRA danio - Abstract
The herbicide atrazine (ATZ) is used worldwide in the control of annual grasses and broad-leaved weeds. The present study evaluated sperm quality parameters in zebrafish Danio rerio after 11-day exposure to nominal ATZ concentrations of 2, 10, and 100 μg L −1 . All ATZ concentrations caused a decrease in motility, mitochondrial functionality, and membrane integrity, as measured using conventional microscopy or fluorescence microscopy with specific probes. The DNA integrity of sperm was not affected. The levels of expression of genes related to spermatogenesis, antioxidant defenses, and DNA repair were also investigated using RT-qPCR. The ATZ caused transcriptional repression of the spermatogenesis-related genes SRD5A2 and CFTR , the antioxidant defense genes SOD2 and GPX4B , and the DNA repair gene XPC . This is the first study to show that environmentally relevant concentrations of ATZ significantly affect the sperm quality in fish, possibly resulting in reduced fertility rates. In addition, we showed that the repression of genes related to spermatogenesis and cellular defense could be part of the mechanisms involved in the ATZ toxicity in the testes of male fish. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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10. Tricaine methanesulfonate (MS-222) on the spermatic quality of zebrafish, Danio rerio.
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Zanin, Marina, Varela Junior, Antonio Sergio, Acosta, Izani Bonel, Gheller, Stela Mari Meneghello, Zimermann, Etiane, Froes, Charles Nunes, Gehrcke, Martielo Ivan, and Corcini, Carine Dahl
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FISH farming , *REACTIVE oxygen species , *BRACHYDANIO , *CELL membranes , *GAMETES , *ZEBRA danio , *OXYGEN carriers , *FISH reproduction - Abstract
Tricaine is a widely-used compound in the anesthesia of fish in both aquaculture and research laboratories. Studies on fish reproduction to date suffer from the impact of anesthetics used for euthanasia, especially the quality of gametes. Therefore, this study aims to analyze the effect of the different concentrations of tricaine (0, 200 and 400 mg/L) on sperm kinetics parameters, structural parameters of plasma membrane fluidity and integrity, production of reactive oxygen species, mitochondrial functionality, lipoperoxidation and DNA fragmentation index by flow cytometry method. Our results showed that the concentration of 400 mg/L tricaine (MS-222) can be used to euthanize Danio rerio even in experiments with reproductive parameters, for humanitarian reasons and avoiding animal suffering, once this concentration has not influenced kinetic parameters like sperm, plasma membrane functionality, DNA fragmentation index, reactive oxygen species and lipoperoxidation. • Tricaine is safe for euthanizing zebra fish. • Tricaine (400 mg / L) does not change seminal quality. • Tricaina does not interfere with sperm parameters. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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11. Adenosine triphosphate (ATP) in the cryopreservation of swine semen
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Dias, Lúcia Pereira, 968.538.080-53, Varela Junior, Antonio Sergio, and Corcini, Carine Dahl
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ATP ,Veterinária ,Espermatozóides ,Porcos ,Semen ,Swine ,CIENCIAS AGRARIAS::MEDICINA VETERINARIA [CNPQ] ,Freezing ,Suínos ,Criopreservação ,Reprodução ,Sperm - Abstract
Submitted by Maria Beatriz Vieira (mbeatriz.vieira@gmail.com) on 2019-07-26T14:01:16Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) dissertacao_lucia_pereira_dias.pdf: 525744 bytes, checksum: a977151dc3f14f974f90bf4a414ecf5a (MD5) Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2019-07-29T17:41:49Z (GMT) No. of bitstreams: 2 dissertacao_lucia_pereira_dias.pdf: 525744 bytes, checksum: a977151dc3f14f974f90bf4a414ecf5a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2019-07-29T17:41:49Z (GMT). No. of bitstreams: 2 dissertacao_lucia_pereira_dias.pdf: 525744 bytes, checksum: a977151dc3f14f974f90bf4a414ecf5a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-02-10 Sem bolsa O espermatozoide suíno é uma célula metabolicamente ativa, que necessita de aporte energético, na forma de adenosina trifosfato (ATP), para manter sua homeostase. A partir da hidrólise do ATP em adenosina monofosfato, é sinalizada a atividade motora para o movimento flagelar. Contudo, quando o espermatozoide da espécie suína é submetido a processos tecnológicos de conservação de sêmen, como a criopreservação, há gastos energéticos acima do normalmente esperado, com perdas na concentração de células viáveis, promovendo baixa motilidade espermática diminuindo sua qualidade seminal. Estruturas celulares como, membrana plasmática, mitocôndria e acrossoma podem ser afetadas negativamente pelas crioinjurias que sofrem as células devido aos processos de congelamento/descongelamento da criopreservação.O objetivo deste estudo foi avaliar os efeitos da adição de ATP exógeno, em diferentes concentrações, no diluente de congelamento de sêmen suíno, através da análise de cinética e estruturas celulares. O estudo foi realizado a partir de 23 amostras de doses inseminantes de ejaculados suíno ((n=23), provenientes de uma central de inseminação. Na metodologia da criopreservação foram utilizados diluentes de resfriamento, Lactose-11% (80%) e gema de ovo (20%), e de congelamento com 89,5% do DR + 1,5% Equex-Paste® e 9% de Glicerol. No diluente de congelamento foi adicionado o ATP exógeno (Adenosine5’-triphosphate disodiumsalthydrate -Sigma-Aldrich®) nas concentrações T1 (C), T2 (0,025mM), T3 (0,25mM), T4 (2,5mM) e T5 (25,0 mM). As palhetas obtiveram um volume total de 0,5mL em cada com concentração de 500x106 espermatozoides. Foram descongeladas em banhomaria (37°C) e realizada a leitura da cinética no sistema CASA (Computer Assisted Sperm Analysis Sperm Vision 3.5) em três tempos, e as estruturas celulares pelo Citometro de fluxo (Attune® Cytometer). Os resultados apresentaram-se variados, porém, ficou evidenciado que o tratamento com 0,25mM de ATP foi o mais satisfatório no descongelamento (tempo zero) para a cinética espermática (motilidade total e progressiva), enquanto que o tratamento com 25mM foi o que apresentou menor desempenho, porém este, obteve um resultado melhor nos tempos de uma e 2 horas após o descongelamento. Pig spermatozoa is a metabolically active cell, which requires energy input, in the form of adenosine triphosphate (ATP), to maintain its homeostasis. From the hydrolysis of ATP in adenosine monophosphate, motor activity is signaled for flagellar movement. However, when the spermatozoa of the swine species are subjected to technological processes of semen conservation, such as cryopreservation, there are energy expenditures above the normally expected, with losses in the concentration of viable cells, promoting low sperm motility reducing their seminal quality. Cellular structures such as plasma membrane, mitochondria, and acrosome may be negatively affected by the cryoinjurias that undergo the cells due to the freeze / thaw processes of cryopreservation. The objective of this study was to evaluate the effects of the addition of exogenous ATP, in different concentrations, in the swine semen freezing diluent, through kinetic analysis and cellular structures. In the cryopreservation methodology, diluents of cooling, Lactose-11% (80%) and egg yolk were used. The study was performed from 23 samples of inseminating doses of porcine ejaculates (n = 23) from an insemination center. (20%) and freezing with 89.5% of DR + 1.5% Equex-Paste® and 9% Glycerol. In the freezing diluent, exogenous ATP (Adenosine 5'-triphosphate disodiumsalthydrate - Sigma-Aldrich (0.25 mM), T4 (2.5 mM) and T5 (25.0 mM). The vals obtained a total volume of 0.5 mL each Concentration of 500x106 spermatozoa, were thawed in a water bath (37 °C) and the kinetics were read in the three-phase Computer Assisted Sperm Analysis (SpermVision 3.5) system and the cell structures by the Flow Cytometer (Attune® Cytometer) The results were varied, however, it was evidenced that the treatment with 0.25 mM of ATP was the most satisfactory (Total time and progressive motility), while the treatment with 25mM was the one that presented the lowest performance, but this one, obtained a better result in the times of one and two hours after the thawing.
- Published
- 2017
12. Efeitos da osmolalidade e do cobre em parâmetros de qualidade espermática em Jenynsia multidentata (Anablepidae- Ciprinodontiforme)
- Author
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Silva, Janaina Camacho da and Corcini, Carine Dahl
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Cryopreservation ,Espermatozoides ,Live-bearing ,Estresse oxidativo ,Diluentes ,Viviparous ,Metais ,Poluição ,Thinner ,Biomarker ,Sperm - Abstract
O aumento populacional, urbanização e atividades industriais e agrícolas têm aumentado o aporte de poluentes em ecossistemas aquáticos. Para avaliar a qualidade da água e os efeitos dos poluentes na biota utiliza-se o biomonitoramento. Uma espécie de peixe nativa, vivípara e de pequeno porte potencialmente utilizável como biomonitora e modelo ecotoxicológico para espécies dulcículas e estuarinas no país é a Jenynsia multidentata (Anablepidae, Ciprinodontiforme). Como a reprodução é uma das funções biológicas que podem ser afetadas pela poluição, e a qualidade dos espermatozoides pode contribuir para o sucesso reprodutivo, testes que avaliem sua qualidade produzem bioindicadores sensíveis e seguros de poluição aquática. Um dos parâmetros utilizados para medir a qualidade espermática é a motilidade, sendo esta influenciada principalmente pela osmolalidade do meio. Como não se encontrou estudos determinando a osmolalidade ideal para a J. multidentata, foi testado os efeitos de diferentes osmolalidades (240-460 mOsm/kg) da Solução Balanceada de Hanks (HBSS), na motilidade e outros parâmetros de qualidade espermática (potencial de membrana mitocondrial e integridade de membrana plasmática e DNA) em J. multidentata. Além disso, foi coletado sangue da artéria caudal e medida a osmolalidade plasmática. A osmolalidade plasmática em J. multidentata foi de 326 ± 3,9 mOsm/Kg. Osmolalidades entre 240 e 320 ativaram mais de 50% dos espermatozoides, sendo que as taxas de motilidade mais constantes e duradouras foram entre 300 e 320 mOsm/Kg (isosmoticidade), por até 7 dias. As maiores taxas de integridade de membrana foram entre 280-360 mOsm/Kg, potencial de membrana mitocondrial 300-460 mOsm/Kg, e as maiores taxas de integridade de DNA entre 260-380 mOsm/Kg no 4° dia de avaliação. Em 4 dias de avaliação, tanto a hipo (240 mOsm/Kg) ou hiperosmolalidade (460 mOsm/Kg) apresentaram as menores taxas de motilidade, integridade de membrana plasmática e integridade de DNA. O potencial de membrana mitocondrial foi reduzido somente na hipo-osmolalidade (240 mOsm/Kg) que também foi mais prejudicial a integridade de membrana plasmática. É provável que o estresse oxidativo gerado pelo choque osmótico seja um dos fatores que está reduzindo a qualidade espermática em meio não isosmótico, como relatada em mamíferos. Tendo definido a osmolalidade adequada do meio de armazenamento, foram avaliado os efeitos do cobre na reprodução em machos de J. multidentata. O cobre é um metal essencial para os seres vivos, mas em concentrações elevadas torna-se tóxico. Uma das características conhecidas do cobre é a sua capacidade de provocar estresse oxidativo, e por suas características intrínsecas, os espermatozoides são suscetíveis a danos oxidativos. Como os mecanismos de toxicidade do cobre no sistema reprodutivo em peixes não estão elucidados, é possível que o estresse oxidativo seja um desses mecanismos. Sendo assim, avaliou-se os efeitos de concentrações ambientalmente de cobre presentes nos ecossistemas aquáticos de água doce (0, 4.5, 9 e 18 µg L-1), de forma aguda (4 dias) e crônica (21 dias), em parâmetros de qualidade espermática (motilidade, potencial de membrana mitocondrial e integridade de membrana plasmática e DNA) e espermatogênese (concentração espermática) em J. multidentata. O ensaio bioquímico de lipoperoxidação foi utilizado como marcador de estresse oxidativo. Verificou-se aumento significativo (0,4907 µmol TMP/mg de peso seco) (p
- Published
- 2015
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