117 results on '"Mucosa nasal"'
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2. Colonización nasal por Staphylococcus aureus resistente a la meticilina en pacientes sometidos a cirugía cardiovascular en un hospital universitario de Bogotá, Colombia
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Heidy C. Martínez-Díaz, Sandra L. Valderrama-Beltrán, Ana C. Hernández, Silvia K. Pinedo, Juan R. Correa, Édgar G. Ríos, Julie J. Rojas, Yessica Y. Hernández, and Marylin Hidalgo
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staphylococcus aureus resistente a meticilina ,portador sano ,mucosa nasal ,infección de la herida quirúrgica ,mupirocina ,infección hospitalaria ,Medicine ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Introducción. Staphylococcus aureus resistente a la meticilina (SARM) es un microorganismo que coloniza las fosas nasales y diferentes partes del cuerpo, lo cual se considera un factor de riesgo para adquirir infecciones invasivas, especialmente en pacientes sometidos a cirugía cardiovascular. Objetivo. Determinar la colonización nasal por SARM y establecer las características clínicas en pacientes programados para cirugía cardiovascular. Materiales y métodos. Se hizo un estudio descriptivo entre febrero y diciembre de 2015. Se incluyeron pacientes adultos programados para cirugía cardiovascular en el Hospital Universitario San Ignacio de Bogotá. La colonización se identificó mediante reacción en cadena de la polimerasa (Polymerase Chain Reaction, PCR) en tiempo real en muestras obtenidas mediante hisopados nasales. Los pacientes fueron descolonizados con mupirocina al 2,0 % intranasal dos veces al día y baños con gluconato de clorhexidina al 4 % del cuello hacía abajo durante cinco días, al cabo de lo cual se hizo una PCR de control. Resultados. Se incluyeron 141 pacientes, 52 hospitalizados y 89 ambulatorios. Del total, 19 (13,4 %) tenían colonización nasal por SARM, correspondientes a 9 (17,3 %) de los 52 hospitalizados y 10 (11,2 %) de los 89 ambulatorios. Todos los pacientes sometidos a descolonización tuvieron resultado negativo en la PCR al final del proceso y ninguno presentó infección del sitio operatorio por S. aureus. Conclusiones. Se demostró colonización nasal por SARM tanto en los pacientes hospitalizados como en los ambulatorios. La descolonización con mupirocina fue efectiva para erradicar el estado de portador a corto plazo, lo que podría tener efecto en las tasas de infección del sitio operatorio en las cirugías cardiovasculares.
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- 2020
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3. Estrogen Receptor mRNA Determined by Quantitative Real-Time PCR in the Nasal Mucosa of Women Taking Oral Contraceptives.
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Millas, Ieda, Richeti, Flávio, Correa, Carla Sant'Anna, Barros, Mirna Duarte, Jorge, Rodrigo Nishihara, and Longui, Carlos Alberto
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NASAL mucosa , *ORAL contraceptives , *ESTROGEN receptors , *MENSTRUAL cycle , *MESSENGER RNA , *RHINITIS - Abstract
Estrogen receptors (ER) have been identified in human nasal mucosa, but its physiologic and pathologic impacts are not totally established. ER have been demonstrated in nasal mucosa by several authors, mainly by immunohistochemical method in nasal mucosa samples surgically removed. The present study aimed to quantify ERa and ERb mRNA concentration by using an absolute quantitative real-time PCR in cells from nasal mucosa smear of women under oral contraceptive therapy. Nasal epithelium smear samples were collected from 110 patients divided in two groups: 55 women who present regular menstrual cycle without using contraceptives and 55 women who present regular menstrual cycle and have been using oral contraceptives for more than 3 months. All the patients answered a rhinitis symptoms questionnaire. The current study showed the potential usefulness of nasal turbinate mucosa cell sourcing, collected through swab, for extracting useful RNA for gene expression. We have identified the predominant expression of ERa isoform in a ratio 10-15 times higher compared to ERb isoform. There is a tendency for positive correlation between the ERb isoform and the rhinitis severity score. [ABSTRACT FROM AUTHOR]
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- 2021
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4. Características epidemiológicas de pacientes que presentan portación nasal de staphylococcus aureus meticilino resistente
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Helen Carolina Silva Lamus, Rosa Isabel Milanés Pérez, Álvaro Álvarez Coneo, and Octavio Arzuza Navarro
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Staphylococcus aureus ,Mucosa nasal ,Infecciones bacterianas ,Medicine (General) ,R5-920 - Abstract
Introducción: la portación nasal de S. aureus es considerada un riesgo tanto para infecciones nosocomiales como comunitarias. El comportamiento creciente de las infecciones causadas por cepas de Staphylococcus aureus meticilino resistentes (SAMR) en individuos con poca o ninguna exposición a factores de riesgo conocidos indica una variabilidad en el comportamiento microbiológico y epidemiológico de estas cepas. Objetivos: describir características sociodemográficas y clínicas de los pacientes adultos ambulatorios que asisten a consulta de otorrinolaringología que presentan enfermedad nasal y portadores nasales de S. aureus/SAMR. Establecer los patrones de susceptibilidad a antibióticos de las cepas de S aureus aisladas. Material y métodos: estudio observacional, descriptivo, prospectivo en 226 pacientes que consultaron por afecciones nasales a la consulta externa sección de otorrinolaringología del Hospital Universitario del Caribe, Cartagena, Colombia, entre agosto de 2012 a agosto de 2013. Realización de encuesta, toma de muestra mediante hisopado nasal, revisión de historia clínica, incubación e identificación bacteriana de las muestras nasales. Resultados: se tamizaron 226 pacientes, 19 pacientes (8.4%) presentaban S. aureus y de estos, el 63.2% fueron meticilino-sensibles (SAMS) y 36.8% fueron documentados resistentes a la meticilina (SAMR), la mediana de edad en los pacientes con S. aureus fue de 41 años (RI= 26 – 54). La proporción de pacientes del sexo femenino fue de 68.4%. De los aislamientos con SAMR solamente el 28.6% provenían de la ciudad de Cartagena. La rinitis alérgica seguida de hipertrofia de cornetes fueron las condiciones otorrinolaringológicas más frecuentes en estos pacientes. Ninguna comparación fue significativa entre los SAMS y SAMR. Los patrones de susceptibilidad antibiótica documentaron que las cepas de S. aureus fueron sensibles a linezolid, gentamicina, rifampicina, vancomicina y cloranfenicol. 94,7% sensible a levofloxacina y tetraciclina, 89.4% a ciprofloxacina y 73.6% a clindamicina. La sensibilidad intermedia fue demostrada en el 52.6% para eritromicina, 21% para cefalotina, 10.5% para clindamicina y 5.2% para ciprofloxacina y tetraciclina. Finalmente, la resistencia antibiótica tuvo su mayor porcentaje en la penicilina con un 84.2%, seguido de 78.9% para ampicilina, 52.6% cefalotina, 36.8% para oxacilina y 5.2% para levofloxacina, eritromicina y ciprofloxacina. El disco de cefoxitin fue utilizado para la predicción de resistencia a meticilina mediada por el gen mecA con una positividad en 36.8% (7 pacientes). Conclusiones: 7 (3.1%) de los 226 pacientes adultos que fueron tamizados presentaron aislamiento nasal por SAMR. Este es el primer reporte de colonización por aislamientos de SAMR en pacientes ambulatorios de la consulta de otorrinolaringología de un hospital de tercer nivel en Cartagena, Colombia. Rev.cienc.biomed. 2015;6(1):85-95
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- 2020
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5. Biopsia de mucosa nasal: descripción de técnicas y comparación de los resultados con gubia versus otros instrumentos en un hospital de referencia.
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Patricia Crizón-Díaz, Diana, Eugenia Franco, Victoria, and Carolina Colmenares, Claudia
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Objectives: For the nasal mucosa biopsy, various instruments are used, and the histological result may vary. The purpose of this study is to describe and determine the frequency of satisfactory histological results of biopsy taken with gouge versus other instruments in patients with nasal mucosal lesions. Materials and methods: Cross-sectional study; included clinical records of patients who underwent nasal mucosa biopsy between 2005 to 2016 in a dermatological hospital in Bogotá, Colombia. Extra-institutional biopsies were excluded. Demographic, clinical and paraclinical characteristics were analyzed. The satisfactory result was defined as obtaining a sufficient sample without the presence of artifices that can prevent the pathologist from confirming the diagnosis. Additionally, diameter and depth of samples were reported. Results: 98 records were included. In 70.4% of the cases biopsy was taken with gouge. The diameter of the sample with gouge was slightly larger (3.2 mm vs 2.8 mm [p=0.16]). The frequency of satisfactory results was similar in those who used gouge (94.2%) or other instruments (93.1%). However, the biopsies with satisfactory results were of greater diameter and depth. Discussion and conclusions: No differences were observed in the frequency of satisfactory results according to the type of instruments, probably the quality of the sample is operator dependent. To increase the probability of a satisfactory result, it is suggested to have a sample with a diameter greater than three mm and at least two mm deep. [ABSTRACT FROM AUTHOR]
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- 2020
6. Melanoma de la mucosa nasal.
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Alberto Romo-Magdaleno, Jorge, Pablo Busto-Ruano, José, and María Reyes-Ortega, Laura
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NASAL mucosa , *MELANOMA , *METASTASIS , *NOSEBLEED , *ONCOLOGY - Abstract
BACKGROUND: Mucosal melanoma of the head and neck is an infrequent disease, with a high mortality rate. Its poor prognosis can be explained by the complexity of the anatomy on these areas, its silent growth and their high capability for metastasis. The lack of knowledge, treatment protocols and series of clinical cases make the approach of patients controversial and subject to diverse therapeutic approaches. Therefore, despite previous research, it has not been possible to increase the survival rate for these patients. CLINICAL CASE: An 89-year-old male patient with a one-year evolution nasal tumor causing nasal obstruction, purulent rhinorrhea, hyposmia, epistaxis and epiphora. A histopathological report of primary melanoma of the nasal mucosa was documented. Due to its statistics and in conjunction with the department of radio-oncology and medical oncology, surgical treatment was performed. CONCLUSIONS: Nasal mucosal melanoma usually has a worse prognosis than those emerging from the cutaneous sites and most patients develop recurrent and disseminated disease. [ABSTRACT FROM AUTHOR]
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- 2020
7. Colonización nasal por Staphylococcus aureus resistente a meticilina en pacientes de cirugía cardiovascular de un hospital universitario de Bogotá, Colombia.
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Martínez-Díaz, Heidy C., Valderrama-Beltrán, Sandra L., Hernández, Ana C., Pinedo, Silvia K., Correa, Juan R., Ríos, Édgar G., Rojas, Julie J., Hernández, Yessica Y., and Hidalgo, Marylin
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Introduction: Methicillin-resistant Staphylococcus aureus, is a microorganism that colonizes nostril and different parts of the body, this is considered a risk factor to acquire invasive infections, especially in cardiovascular surgery patients. Objective: To determine the frequency of nasal colonization by MRSA and establish the clinical characteristics in patients scheduled for cardiovascular surgery. Materials and methods: This was a descriptive study, conducted between February and December 2015 and included adult patients programmed for cardiovascular surgery at the San Ignacio University Hospital (HUSI) Bogotá, Colombia. Colonization was identified by real-time PCR from nasal swabs. Colonized patients were treated with Mupirocin 2,0% (Mupiral, Elimera) intranasally twice a day and bathed with chlorhexidine at 4% (Quirum) from the neck downwards for five days; at the end of the regimen a PCR control was carried out. Results: 141 patients were included with a percentage of nasal colonization of 13.4% (19/141). There were 52 hospitalized and 89 outpatients with a percentage of nasal colonization of 17.3% (9/52) and 11.2% (10/89) respectively. All colonized patients who received treatment had a negative PCR at the end of the regimen and none of the included patients at the end of the study had a surgical site infection by S. aureus. Conclusions: Nasal colonization was observed both in hospitalized and outpatient, decolonization treatment with mupirocin was effective to eradicate carrier state short term, which could impact the rates of surgical wound infection associated to cardiovascular surgery. [ABSTRACT FROM AUTHOR]
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- 2020
8. Methicillin-resistant Staphylococcus aureus nasal colonization in cardiovascular surgery patients at a university hospital in Bogotá, Colombia.
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Martínez-Díaz, Heidy C., Valderrama-Beltrán, Sandra L., Hernández, Ana C., Pinedo, Silvia K., Correa, Juan R., Ríos, Édgar G., Rojas, Julie J., Hernández, Yessica Y., and Hidalgo, Marylin
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Copyright of Biomédica: Revista del Instituto Nacional de Salud is the property of Instituto Nacional de Salud of Colombia 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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- 2020
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9. Medición de glucosa y proteínas totales en rinorreas como herramienta diagnóstica de fístulas de líquido cefalorraquídeo.
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Javier García-Callejo, Francisco, Martínez-Expósito, Fernando, Balaguer-García, Ramón, María García-Aguayo, José, Ramón Alba-García, José, and Juantegui-Azpilicueta, Miguel
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OBJECTIVE: To assess and validate the reliability offered by the double quantitative determination of glucose and total proteins in nasal secretions for the identification of cerebrospinal fluid (CSF);leaks against tests of greater sensitivity and cost. PATIENTS AND METHOD: A prospective, longitudinal, observational, comparative study was done from March 2017 to August 2019 measuring glucose and total protein levels in CSF and nasal exudate samples. With these data, a calculation tool was carried out with both parameters on 84 suspected cases of fistula, comparing its diagnostic accuracy with that of p2-transferrin as well. RESULTS: There were included 84 suspicious cases;there were statistically significant differences in mean glucose and total protein concentrations in CSF and nasal mucus samples. CSF leakage was confirmed in 24 of 84 cases with fistula suspicion. Nasal samples with glucose > 40 mg/dL and total proteins < 100 mg/dL had sensitivity of 88%, specificity of 89.8%, positive predictive value of 78.5%, negative of 94.6% and accuracy of 89.2%. CONCLUSIONS: The quantitative determination of glucose and total protein improves the sensitivity of glucose alone in the diagnosis of CSF leaks and offers accuracy indicators slightly lower than those of p2-transferrin, so they could be used as a valid diagnostic tool for its cost, availability and quickness in obtaining the result. [ABSTRACT FROM AUTHOR]
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- 2020
10. Lesiones mucocutáneas asociadas a trastorno linfoproliferativo: reporte de un caso
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Borda-Pedraza, Katherin Andrea, Arias-Pedroza, Viviana Leticia, Quinche-Pardo, Mauricio Ernesto, Borda-Pedraza, Katherin Andrea, Arias-Pedroza, Viviana Leticia, and Quinche-Pardo, Mauricio Ernesto
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Introduction: Leukemia is a type of blood cancer characterized by the accumulation of mature or immature cells in the bone marrow (BM), peripheral blood, lymph nodes, and lymphoid tissues. These cells can cause extranodal infiltration in tissues such as skin (leukemia cutis [LC]) and mucous membranes, being these locations rare. Case presentation: The patient was referred to a university hospital, where BM and computed tomography tests were performed, showing peripheral lymphatic involvement and maxillary paranasal sinus (PNS) opacity. Subsequently, functional endoscopic sinus surgery (FESS) of the PNS was performed and biopsies were taken from the skin lesion and PNS mucosa. Based on the results of the BM tests, the patient was diagnosed with B-cell acute lymphoblastic leukemia, so chemotherapy (CT) was initiated. The biopsy report described infiltration of leukemoid neoplastic cells in both locations (skin lesion and PNS mucosa), confirmed by immunohistochemistry. During CT, the patient developed bone marrow aplasia, tumor lysis syndrome and septic and hypovolemic shock, which eventually led to his death. Conclusion: LC is a rare condition associated with poor prognosis, so once detected it is necessary to initiate systemic treatment and look for possible extramedullary metastases. PNS opacity in patients with oncologic immunosuppression is usually considered as nasosinusal infection; however, it may also be secondary to an unusual infiltrative involvement of leukemia., Introducción. La leucemia es un cáncer hematológico caracterizado por la acumulación de células maduras o inmaduras en la médula ósea (MO), la sangre periférica, los ganglios linfáticos y los tejidos linfoides. Estas células pueden causar infiltración extranodal en tejidos como la piel (leucemia cutis [LC]) y en las mucosas, siendo estas localizaciones infrecuentes. Presentación del caso. Hombre de 24 años con masa submaxilar dolorosa, obstrucción nasal y lesiones cutáneas quien asistió al servicio de urgencias de un hospital de segundo nivel en Bogotá D.C., Colombia, donde se reportó reacción leucocitaria en hemograma y de blastos en frotis de sangre periférica, por lo que fue remitido a un hospital universitario, donde se realizaron pruebas de MO y tomografía computarizada, en la cual se observó compromiso linfático periférico y opacificación de senos paranasales (SPN) maxilares. Posteriormente, se realizó cirugía endoscópica funcional de SPN y se tomaron biopsias de la lesión cutánea y de la mucosa de los SPN. Con base en los resultados de las pruebas de MO, el paciente fue diagnosticado con leucemia linfoblástica aguda de células B, por lo que se le inició quimioterapia (QT). El reporte de biopsia describió infiltración de células neoplásicas leucemoides en ambas localizaciones (lesión cutánea y mucosa de SPN), confirmada mediante inmunohistoquímica. Durante la QT, el paciente desarrolló aplasia medular, síndrome de lisis tumoral y choque séptico e hipovolémico, lo que eventualmente llevó a su deceso. Conclusión. La LC es una condición poco frecuente asociada a un pobre pronóstico, por lo que una vez detectada es necesario iniciar tratamiento sistémico y buscar posibles metástasis extramedulares. La opacificación de los SPN en pacientes con inmunosupresión oncológica suele considerarse como infección nasosinusal; sin embargo, también puede ser secundaria a un compromiso infiltrativo inusual de la leucemia.
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- 2023
11. Increased nasal tip projection with 'pseudo-flaps' using excess lateral cephalic alar cartilage
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BOZOLA, ANTÔNIO ROBERTO, BOZOLA, ALEXANDRE CARONI, and SOMMER, CAMILA GARCIA
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Nariz ,Nasal cartilages ,Mucosa nasal ,Surgical flaps ,Cartilagens nasais ,Nose ,Rhinoplasty ,Nasal mucosa ,Rinoplastia ,Retalhos cirúrgicos - Abstract
RESUMO Introdução: O aumento da projeção da ponta nasal às vezes se torna necessário para a obtenção de uma boa proporção entre ela e o dorso. Inúmeras técnicas e táticas são descritas com essa finalidade utilizando enxertos cartilaginosos obtidos do septo nasal, concha auricular e cartilagem costal. Quando esse aumento deve ser discreto é proposto o uso dos excedentes de cartilagens alares laterais em forma de “pseudo-retalhos”. Métodos: Em rinoplastias abertas primárias os excedentes das cartilagens alares, geralmente removidas, são utilizados como “pseudo-retalhos”, dobrados sobre si mesmos, em forma de “suspensório de soldado francês”, sobre o domus das cartilagens alares, tendo como acolchoamento de apoio os tecidos moles delas próprias, e o tecido mole interdomal, geralmente desprezado, que é liberado, e elevado para sobre os domus. Ele é mantido, descolado e deslocado para a ponta nasal, e fica contido pelos “pseudo-retalhos” das cartilagens alares ali suturados ou cobrindo o extremo do enxerto estrutural da columela. Foram operados com essa tática 36 pacientes. Resultados: 35 com bons resultados e um apresentou um abcesso de ponta nasal, provocado pela exposição endonasal de um fio de sutura não absorvível, que foi removido. Houve necessidade de uma segunda intervenção, utilizando novo enxerto auricular, ainda com resultado insatisfatório. O método é relativamente simples para quem opera narizes. Conclusão: A ponta nasal pode ser discretamente mais projetada utilizando os excessos de cartilagens alares, “pediculadas” no domus. ABSTRACT Introduction: An increased nasal tip projection is sometimes necessary to achieve an appropriate proportion between nasal tip and dorsum. Numerous techniques and tactics have been described for this purpose using cartilaginous grafts obtained from the nasal septum, auricular concha, and costal cartilage. When this increased projection must be discrete, the use of excess lateral alar cartilage in the form of “pseudo-flaps” is proposed. Methods: In primary open rhinoplasty, excess alar cartilage, which is generally removed, was used to produce “pseudo-flaps”. The cartilages were folded over themselves in the form of a “French soldier’s suspender” over the domes of the alar cartilage and supported by interdomal soft tissue padding raised over the domus. It was kept detached, and relocated to the nasal tip and was contained by “pseudo-flaps” of the alar cartilages sutured there or covering the columella’s structural graft. Thirty-six patients underwent surgery using this technique. Results: Thirty-five had good results and one had a nasal tip abscess, caused by endonasal exposure to a non-absorbable suture, which was removed. A second intervention was then performed using a new auricular graft, but the result was still unsatisfactory. The “pseudo-flaps” method is relatively simple for those performing nasal surgery. Conclusion: The nasal tip can be projected discretely using the excess of alar cartilage “pedicled” in the domus.
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- 2023
12. Assessment of mucosal changes associated with nasal splint in a rabbit model
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Mehmet Tan, M. Tayyar Kalcioglu, Nurhan Sahin, Tuba Bayindir, Emine Samdanci, and Aliye Filiz
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Mucosa nasal ,Perfuração do septo nasal ,Septo nasal ,Tampões cirúrgicos ,Otorhinolaryngology ,RF1-547 - Abstract
INTRODUCTION: There is no consensus on duration of the nasal splint after nasal septum surgeries. The pressure of nasal splint on the mucosa may cause tissue necrosis and nasal septum perforation.OBJECTIVES: To investigate the histopathological changes of the nasal mucosa caused by nasal splints in a rabbit model.METHODS: No splint was used in group A. Bilateral silicone nasal splints were placed for five, ten, and 15 days in groups B, C, and D, respectively. Biopsy of the nasal mucosa was performed after removal of splint. Histopathologic evaluations were performed. The severity and depth of the inflammation were scored.RESULTS: Group A had a normal histological appearance. Comparison of the results of groups B, C, and D with group A demonstrated statistically significant differences with regards to the severity of histopathological findings. There was no statistically significant difference between groups B and C. There were statistically significant differences between the groups B and D, and also between groups C and D.CONCLUSIONS: Longer duration of nasal splint had a higher risk for septal perforation. Therefore, removal of the splint as soon as possible may be helpful for preventing potential perforations.
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- 2015
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13. Estudio de IL5RA como biomarcador genético en Poliposis Nasal
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Heredero Jung, David Hansoe, Sanz Lozano, Catalina Sofía, Dávila González, Ignacio Jesús, and García Sánchez, María Asunción
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Academic dissertations ,alergia e inmunología ,Universidad de Salamanca (España) ,Tesis y disertaciones académicas ,Rinosinusitis ,Asthma ,asma ,Nasal Mucosa ,Nasal Polyps ,Allergy and Immunology ,Poliposis nasal ,2414 Microbiología ,pólipos nasales ,Tesis Doctoral ,mucosa nasal - Abstract
[ES] La IL-5 se caracteriza por su actividad en distintas células diana, entre las que se incluyen los linfocitos B, eosinófilos o basófilos. Es producida por linfocitos T, sobre todo Th2, ILC2 y mastocitos, y ejerce efectos en la proliferación y diferenciación, a través de su receptor (IL-5R), un heterodímero compuesto por una subunidad α específica de ligando (IL-5Rα) y otra subunidad β, común a otros receptores de citocinas. Debido a la relación de la poliposis nasal con la inflamación T2, la evolución de la poliposis nasal asociada al asma con eosinofilia se ha considerado un biomarcador para predecir la respuesta a los anticuerpos antiIL-5 en el asma. La terapia antagonista de IL-5 ha demostrado ser de utilidad en pacientes asmáticos con un fenotipo T2, siendo por lo tanto extensible el potencial de dicho tratamiento al de la inflamación en RSCcPN. La hipótesis principal de este estudio es que los pacientes con RSCcPN, asociados o no a otras patologías de vías respiratorias, atopia, hábitos tóxicos y a más variables clínicopatológicas, presentan una sobreexpresión del gen IL5RA respecto a los controles. La hipótesis secundaria se extrapola de la anterior, y es la posibilidad de considerar IL5RA como un biomarcador de poliposis nasal que pueda ser útil tanto en el diagnóstico, como en el seguimiento y el tratamiento, facilitando una terapia dirigida a determinados grupos de pacientes. En el estudio se plantearon los siguientes objetivos: 1. Determinar los niveles de expresión del gen IL5RA en sangre periférica en una población de pacientes con poliposis nasal frente a un grupo control. 2. Analizar las diferencias de expresión entre distintos fenotipos clínicos. 3. Determinar los niveles de expresión de IL5RA en tejido polipoideo y estudiar su relación con los niveles de expresión en sangre periférica. 4. Estudiar la posible correlación entre la expresión de IL5RA y otros genes que caracterizan grupos patológicos de rinosinusitis crónica, asma y otras enfermedades alérgicas.
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- 2022
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14. Effectiveness of balloon sinuplasty in patients with chronic rhinosinusitis without polyposis
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Cassiana Burtet Abreu, Leonardo Balsalobre, Gabriela Robaskewicz Pascoto, Moacir Pozzobon, Sandra Costa Fuchs, and Aldo Cassol Stamm
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Sinusite ,Mucosa Nasal ,Cirurgia videoassistida ,Seios paranasais ,Otorhinolaryngology ,RF1-547 - Abstract
Introduction: Balloon sinuplasty is a minimally invasive endoscopic procedure, developed with the aim of restoring patency of the paranasal sinuses ostia with minimal damage to the mucosa. Objective: To evaluate the effectiveness of balloon sinuplasty in patients with chronic rhinosinusitis. Methods: This was a prospective cohort study comprising 18 patients with chronic rhinosinusitis without polyposis who underwent balloon sinuplasty. Patients were evaluated for clinical criteria, quality of life (Sino-Nasal Outcome Questionnaire Test-20 SNOT-20]), and computed tomography of the sinuses (Lund–Mackay staging) preoperatively and three to six months after the procedure. Results: Out of 18 patients assessed, 13 were included, with a mean age of 39.9 ± 15.6 years. Ostia sinuplasty was performed in 24 ostia (four sphenoid, ten frontal, and ten maxillary sinus). At the follow-up, 22 (92%) ostia were patent and there was no major complication. There was symptomatic improvement (SNOT-20), with Cronbach coefficients for consistency of the questionnaire items of 0.86 (95% CI: 0.73–0.94) preoperatively and of 0.88 (95% CI: 0.77–0.95) postoperatively, the difference being statistically significant (p
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- 2014
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15. A influencia da administracao de estradiol nos receptores de estrogeno da mucosa nasal: estudo experimental em cobaias
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Henrique Olival Costa, Ney Penteado de Castro Neto, Lia Mara Rossi, Ieda Millas, Flavia Coelho, and Leonardo da Silva
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Mucosa nasal ,Estrogenios ,Imunoistoquimica ,Otorhinolaryngology ,RF1-547 - Abstract
Introdução: A literatura indica uma correlação entre estrogênio elevado no soro e sintomas nasais ou alterações inflamatórias na mucosa nasal. Os receptores de estrogênio tendem a ser controlados por retroalimentação negativa, para evitar um estímulo nocivo sobre as diversas funções corporais em períodos de hiperestrogenismo. Propomos uma hipótese em que os mecanismos que regulam a expressão de receptores de estradiol na mucosa nasal estão ausentes em alguns pacientes, e a sua concentração permanece estável mesmo em períodos de elevada concentração sérica hormonal, o que pode conduzir a sintomas locais na mucosa nasal. Desenho do estudo: Estudo prospectivo experimental. Objetivo: Determinar se altos níveis de estrogênio induzem à redução no número de receptores de estrogênio na mucosa nasal. Material e método: Trinta cobaias foram submetidas à biópsia da concha nasal, recebendo 0,5 ml de cipionato de estradiol por via intraperitoneal por trinta dias consecutivos. Em seguida foram obtidas amostras da concha nasal contralateral. As análises imuno-histoquímicas dos receptores de estrógeno foram realizadas antes e depois da hormonioterapia. Resultados: O grupo pós-tratamento mostrou uma redução da expressão dos receptores (p = 5,2726-5). Conclusão: Redução na expressão do receptor de estrogênio nasal foi encontrada após trinta dias de administração de estradiol.
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- 2014
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16. Uso do enxerto de mucosa nasal na timpanoplastia
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Sandro Barros Coelho, Gabriela de Andrade Meireles Bezerra, Willian da Silva Lopes, Adriano Sérgio Freire Meira, Silvio Caldas Neto, and Davi Farias de Araújo
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medicine.medical_specialty ,medicine.medical_treatment ,Perforation (oil well) ,Mucous membrane of nose ,Temporalis fascia ,Endoscopic surgical procedure ,Timpanoplastia ,Temporal fascia ,03 medical and health sciences ,Ensaio clínico ,0302 clinical medicine ,Tympanoplasty ,Myringoplasty ,Procedimento cirúrgico endoscópico ,Humans ,Medicine ,030223 otorhinolaryngology ,Retrospective Studies ,Graft acceptance ,Mucosa nasal ,Tympanic Membrane Perforation ,business.industry ,Nasal mucosa ,Surgery ,Tragal cartilage ,Clinical trial ,Nasal Mucosa ,Treatment Outcome ,medicine.anatomical_structure ,Otorhinolaryngology ,Hearing results ,030220 oncology & carcinogenesis ,business - Abstract
Introduction Tympanoplasty techniques with different types of graft have been used to close tympanic perforations since the 19th century. Tragal cartilage and temporalis fascia are the most frequently used types of graft. They lead to similar functional and morphological results in most cases. Although little published evidence is present, nasal mucosa has also been shown to be a good alternative graft. Objective Surgical and audiological outcomes at the six-month follow-up in type I tympanoplasty using nasal mucosa and temporalis fascia grafts were analyzed. Methods A total of 40 candidates for type I tympanoplasty were randomly selected and divided into the nasal mucosa and temporalis fascia graft groups with 20 in each group. The assessed parameters included surgical success; the rate of complete closure of tympanic perforation and hearing results; the difference between post- and pre-operative mean quadritonal airway-bone gap, six months after surgery. Results Complete closure of the tympanic perforation was achieved in 17 of 20 patients in both groups. The mean quadritonal airway-bone gap closures were11.9 and 11.1 dB for the nasal mucosa and temporalis fascia groups, respectively. There was no statistically significant difference between the groups. Conclusion The nasal mucosa graft can be considered similar to the temporal fascia when considering the surgical success rate of graft acceptance and ultimate audiological gain. Resumo Introdução Técnicas de timpanoplastia com diferentes tipos de enxerto têm sido usadas para fechar perfurações timpânicas desde o século XIX. A cartilagem tragal e a fáscia temporal são os tipos de enxerto mais usados, com resultados funcionais e morfológicos semelhantes na maioria dos casos. Embora ainda com poucas evidências publicadas, a mucosa nasal tem se mostrado uma boa opção de enxerto. Objetivo Comparar os resultados cirúrgicos e audiológicos da timpanoplastia tipo I com enxerto de mucosa nasal e de fáscia temporal em seis meses de seguimento. Método Foram selecionados aleatoriamente 40 pacientes candidatos a timpanoplastia tipo I divididos nos grupos enxerto de mucosa nasal e de fáscia temporal com 20 em cada grupo. Os parâmetros avaliados incluíram sucesso cirúrgico, ou seja, a taxa de fechamento completo da perfuração timpânica, e resultados audiológicos; diferença entre o gap quadritonal médio do gap aéreo-ósseo pré e pós-operatório após seis meses da cirurgia. Resultados O fechamento completo da perfuração timpânica foi alcançado em 17 de 20 pacientes no grupo mucosa nasal, como também no grupo fáscia temporal. O ganho quadritonal médio do gap aéreo-ósseo foi de 11,9 dB no grupo mucosa nasal e 11,1 dB no grupo fáscia temporal, respectivamente. Não houve diferença estatisticamente significante entre os grupos. Conclusão O enxerto de mucosa nasal pode ser considerado semelhante ao da fáscia temporal quando se considera o sucesso cirúrgico de pega do enxerto e o ganho audiológico.
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- 2022
17. Colonización nasal por Staphylococcus aureus resistente a la meticilina en pacientes sometidos a cirugía cardiovascular en un hospital universitario de Bogotá, Colombia
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Marylin Hidalgo, Sandra Valderrama-Beltrán, Ana C Hernández, Julie J Rojas, Juan Rafael Correa, Heidy C. Martínez-Díaz, Silvia K Pinedo, Yessica Y Hernández, and Édgar G Ríos
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Male ,0301 basic medicine ,nasal mucosa ,Artículo Original ,lcsh:Medicine ,Mucous membrane of nose ,mupirocina ,medicine.disease_cause ,Hospitals, University ,chemistry.chemical_compound ,Postoperative Complications ,0302 clinical medicine ,Colonization ,030212 general & internal medicine ,infección de la herida quirúrgica ,mucosa nasal ,Surgical wound ,surgical wound infection ,Middle Aged ,Staphylococcal Infections ,Nasal Swab ,Preoperative Period ,Methicillin-resistant Staphylococcus aureus ,Female ,Methicillin-Resistant Staphylococcus aureus ,medicine.medical_specialty ,lcsh:Arctic medicine. Tropical medicine ,lcsh:RC955-962 ,030106 microbiology ,Staphylococcus aureus resistente a meticilina ,Mupirocin ,Colombia ,Nose ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Internal medicine ,medicine ,Humans ,carrier state ,Risk factor ,Aged ,mupirocin ,business.industry ,Cardiovascular Surgical Procedures ,lcsh:R ,cross infection ,portador sano ,chemistry ,Nasal administration ,infección hospitalaria ,business - Abstract
Resumen Introducción. Staphylococcus aureus resistente a la meticilina (SARM) es un microorganismo que coloniza las fosas nasales y diferentes partes del cuerpo, lo cual se considera un factor de riesgo para adquirir infecciones invasivas, especialmente en pacientes sometidos a cirugía cardiovascular. Objetivo. Determinar la colonización nasal por SARM y establecer las características clínicas en pacientes programados para cirugía cardiovascular. Materiales y métodos. Se hizo un estudio descriptivo entre febrero y diciembre de 2015. Se incluyeron pacientes adultos programados para cirugía cardiovascular en el Hospital Universitario San Ignacio de Bogotá. La colonización se identificó mediante reacción en cadena de la polimerasa (Polymerase Chain Reaction, PCR) en tiempo real en muestras obtenidas mediante hisopados nasales. Los pacientes fueron descolonizados con mupirocina al 2,0 % intranasal dos veces al día y baños con gluconato de clorhexidina al 4 % del cuello hacía abajo durante cinco días, al cabo de lo cual se hizo una PCR de control. Resultados. Se incluyeron 141 pacientes, 52 hospitalizados y 89 ambulatorios. Del total, 19 (13,4 %) tenían colonización nasal por SARM, correspondientes a 9 (17,3 %) de los 52 hospitalizados y 10 (11,2 %) de los 89 ambulatorios. Todos los pacientes sometidos a descolonización tuvieron resultado negativo en la PCR al final del proceso y ninguno presentó infección del sitio operatorio por S. aureus. Conclusiones. Se demostró colonización nasal por SARM tanto en los pacientes hospitalizados como en los ambulatorios. La descolonización con mupirocina fue efectiva para erradicar el estado de portador a corto plazo, lo que podría tener efecto en las tasas de infección del sitio operatorio en las cirugías cardiovasculares. Abstract Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) is a microorganism that colonizes nostrils and different parts of the body, which is considered a risk factor to acquire invasive infections, especially in cardiovascular surgery patients. Objective: To determine the frequency of nasal colonization by MRSA and to establish the clinical characteristics in patients scheduled for cardiovascular surgery. Materials and methods: This was a descriptive study conducted between February and December, 2015. We included adult patients scheduled for cardiovascular surgery at the Hospital Universitario San Ignacio in Bogotá, Colombia. Colonization was identified by real-time PCR from nasal swabs. Colonized patients were treated with mupirocin 2.0% intranasally twice a day and bathed with chlorhexidine 4% from the neck downwards for five days. At the end of this treatment, PCR control was carried out. Results: We included 141 patients with a percentage of nasal colonization of 13.4% (19/141). There were 52 hospitalized patients and 89 outpatients with a percentage of nasal colonization of 17.3% (9/52), and 11.2% (10/89), respectively. All colonized patients who received treatment had a negative PCR at the end of the regime and none of the participating patients had a surgical site infection by S. aureus at the end of the study. Conclusions: Nasal colonization was observed both in hospitalized patients and outpatients. Decolonization treatment with mupirocin was effective to eradicate the carrier state in the short term, which could impact the rates of surgical wound infection associated with cardiovascular surgery.
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- 2020
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18. Estudo dos fatores clínicos e imunológicos associados à disseminação de Leishmania sp para a mucosa nasal e avaliação da segurança de antígeno de montenegro em camundongos
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Barroso, Daniel Holanda and Sampaio, Raimunda Nonata Ribeiro
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Mucosa nasal ,Imunologia ,Reação intradérmica de Montenegro ,Leishmaniose - Abstract
Tese (doutorado) — Universidade de Brasília, Faculdade de Ciências Médicas, Programa de Pós-Graduação em Ciências Médicas, 2022. Introdução: Uma parte dos pacientes com Leishmaniose tegumentar americana desenvolvem lesões mucosas com consequentes deformidades. A compreensão da fisiopatogênese da forma mucosa é limitada pelo escasso conhecimento dos fatores associados à disseminação do parasito e pelo grande intervalo de tempo que pode existir entre o desenvolvimento das lesões cutânea e mucosa da doença. Objetivo: Avaliar fatores clínicos e imunológicos fatores associados à disseminação de Leishmania spp para a mucosa nasal através de avaliação clínica e laboratorial sistematizada. Além disso procuramos validar novo antígeno de leishmania produzido na UnB. Métodos: Foi realizado estudo transversal onde foram incluídos consecutivamente pacientes atendidos no ambulatório de Leishmaniose do Hospital Universitário de Brasília. Os pacientes foram submetidos a fotografias sistematizadas das lesões e os exames dermatológico/otorrinolaringológico foram registrados em fichas específicas. Citocinas inflamatórias foram medidas no soro. O desfecho principal foi a presença de DNA de leishmania em swab nasal realizada por PCR. Também foi testado antígeno derivado da cepa MHOM/BR/PH8 o qual foi inoculado em camundongos B57BL/6 com avaliação de segurança por parâmetros clínicos, laboratoriais e histopatológicos. Resultados: Para avaliar a associação entre os níveis de citocinas IL-12, IL-6, TNFα, IL-10, IL-1β e IL-8 e a presença de leishmania em mucosa nasal foi construído um modelo de regressão de Poisson considerando interações multivariadas de características clínicas e laboratoriais. Dos 79 pacientes com Leishmaniose cutânea, 24 (30%) apresentavam DNA de L. (V.) braziliensis na mucosa nasal. No modelo multivariado, a presença de DNA do parasito na mucosa foi associada à redução dos níveis de IL-12 (RP = 0,440; p = 0,034), aumento dos níveis de IL-6 (RP = 1,001; p = 0,002) e maior número de afetados segmentos corporais (RP = 1,65; p
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- 2022
19. La mucosa nasal como vía y fuente para la medicina regenerativa Nasal mucosa as pathway and source for regenerative medicine
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Porfirio Hernández-Ramírez
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mucosa nasal ,medicina regenerativa ,células madre ,medicamentos intranasales ,nasal mucosa ,regenerative medicine ,stem cells ,intranasal drugs ,Diseases of the blood and blood-forming organs ,RC633-647.5 ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Se mencionan los pilares fundamentales que sustentan a la medicina regenerativa y se señala que de ellos, sin lugar a dudas, el que más ha avanzado es el representado por las células madre, en particular las adultas, que de manera progresiva se han ido extendiendo en la práctica clínica. Se destaca que recién se ha explorado la mucosa nasal como una vía útil y sencilla para el acceso al organismo de elementos potencialmente útiles en la medicina regenerativa, y también como fuente de células madre con posibilidades de introducción en el área clínica. Se comentan las características fundamentales de la mucosa nasal, se mencionan algunos medicamentos que se han usado a través de la ruta intranasal y se refiere la posibilidad de usar esta vía para la administración de células madre que puedan ejercer sus acciones sobre el sistema nervioso central. Estos datos se complementan con los promisorios resultados que se han obtenido con el trasplante de células procedentes de la mucosa nasal.The fundamental pillars of the regenerative medicine were set forth in this paper. One of the most advanced is undoubtedly the field of stem cells, particularly adult stem cells, which has progressively spread into the clinical practice. It was underlined that the nasal mucosa has been recently explored as a useful simple pathway through which the potentially useful elements of regenerative medicine may have access to the body; and also as a source of stem cells with possibilities of being introduced in the clinical area. Comments were made on the fundamental characteristics of the nasal mucosa; some drugs that have been administered through intranasal route were mentioned together with the possibility of using this pathway for stem cells that might have their impact on the central nervous system. All these data were completed with the promising results of transplantation of stem cells from the nasal mucosa.
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- 2011
20. Estudo da mucosa nasal de contatos de hanseníase, com positividade para o antígeno glicolipídio fenólico 1 Nasal mucosa study of leprosy contacts with positive serology for the phenolic glycolipid 1 antigen
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Ana Cristina da Costa Martins, Alice Miranda, Maria Leide Wan-del-Rey de Oliveira, Samira Bührer-Sékula, and Alejandra Martinez
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endoscopia ,glicolipídios ,mucosa nasal ,mycobacterium leprae ,reação em cadeia da polimerase ,endoscopy ,glycolipids ,nasal mucosa ,polymerase chain reaction ,Otorhinolaryngology ,RF1-547 - Abstract
A hanseníase é uma doença infecciosa de evolução crônica causada pelo Mycobacterium leprae que acomete com maior frequência a mucosa nasal. Esse acometimento independe da forma clínica da doença e pode ocorrer mesmo antes do aparecimento de lesões na pele ou em outras partes do corpo. Faz-se necessário a vigilância epidemiológica dos contatos de casos novos de hanseníase para o diagnóstico precoce da doença. OBJETIVOS: Identificar lesões específicas e precoces de hanseníase por meio de exame endoscópico, baciloscópico, histopatológico e da reação em cadeia da polimerase em Tempo Real da mucosa das cavidades nasais dos contatos domiciliares e peridomiciliares com sorologia positiva para o antígeno glicolipídio fenólico. MATERIAL E MÉTODOS: Estudo prospectivo transversal em 31 contatos de pacientes de hanseníase com sorologia positiva (PGL-1), 05 controles negativos e 01 positivo no período de 2003 a 2006. RESULTADOS: Entre os contatos soropositivos a PCR-RT foi positiva para a presença de DNA de M. leprae em 06 (19,35%) destes e o maior número de cópias do genoma do bacilo foi encontrado no contato que adoeceu. CONCLUSÃO: Isoladamente os exames da mucosa nasal não permitiram o diagnóstico precoce da hanseníase, mas com a combinação de vários métodos, o exame dos contatos pôde ajudar na identificação da infecção subclínica e monitoramento daqueles que poderiam ter papel importante na transmissão da doença.Leprosy is a chronic infectious disease caused by Mycobacterium leprae. The disease more frequently affects the nasal mucosa and can occur independently of its clinical form or even before lesions on the skin or on other parts of the body. It is necessary to employ epidemiological surveillance of household contacts with new leprosy cases for early disease diagnosis. AIM: identify specific and early leprosy lesions through endoscopic, baciloscopy, histopathology exams, and real time polymerase chain reaction of the nasal cavity mucosa on household and peridomiciliary contacts with positive serology for the phenolic glycolipid 1 antigen. METHODOLOGY: Between 2003 at 2006 there was a prospective cross-sectional clinical study with 31 contacts with patients with leprosy with positive serology against PGL-1, 05 negative controls and 01 positive control. RESULTS: Between seropositive contacts, real-time PCR was positive for M. leprae DNA in 06 (19.35%) of them and the higher number of genome copies were found in contacts who became sick. CONCLUSION: Nasal mucosa tests alone did not enable the early diagnosis of Leprosy. However, through the combination of various methods, tests on the contacts can help identify subclinical infection and monitor the contacts that could be responsible for spreading the disease.
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- 2010
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21. Histological analysis of the distribution pattern of glandular tissue in normal inferior nasal turbinates Análise histológica do padrão de distribuição glandular em conchas nasais inferiores normais
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Ieda Millas, Bianca Maria Liquidato, José Eduardo Lutaif Dolci, José Humberto Tavares Guerreiro Fregnani, and José Rafael Macéa
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depuração mucociliar ,histologia ,mucosa nasal ,nariz ,mucociliary clearance ,histology ,nasal mucosa ,nose ,Otorhinolaryngology ,RF1-547 - Abstract
Nasal turbinates play an important role in nasal physiology. These functions include the important function of particle filtration by the mucocilliary system. Many nasal mucosal diseases, such as rhinitis and rhinosinusitis, are directly related with structural alterations of the mucosal lining of the turbinates. AIM: To study the distribution pattern of the glandular epithelium of the lamina propria in the normal lower nasal turbinate mucosa of the anterior, medium and posterior portions. MATERIAL AND METHOD: A prospective study in which small linear fragment of the lower nasal turbinate was removed from ten patients undergoing aesthetic nose surgery. The slides were hematoxilin-eosin stained, examined histologically and photographed. Glandular epithelium was delimited individually, the total area of the lamina propria on the anterior, medium and posterior portions of nasal turbinates was calculated (µm2). RESULTS: There was no statistically significant difference in the distribution pattern of the glandular epithelium of the lamina propria. CONCLUSION: This study showed no predominance of glandular epithelium distribution in anterior and posterior portions of lower nasal turbinates in normal subjects.As conchas nasais inferiores desempenham um importante papel na fisiologia nasal. Dentre as diversas funções, destaca-se a filtração de partículas estranhas pelo sistema mucociliar. Muitas doenças relacionadas à mucosa nasal, como rinites e rinossinusites, têm relação direta com alterações estruturais na mucosa de revestimento das conchas nasais. OBJETIVO: Verificar o padrão de distribuição do epitélio glandular da lâmina própria na mucosa de conchas nasais inferiores normais, nas suas regiões da cabeça, corpo e cauda. MATERIAL E MÉTODO: Estudo prospectivo com dez pacientes submetidos a procedimento nasal estético, dos quais retirou-se pequeno fragmento linear de concha nasal inferior. Os cortes foram corados com hematoxilina e eosina e submetidos a exame histológico. Foram delimitadas individualmente as áreas de epitélio glandular e a área total de lâmina própria da mucosa da cabeça, do corpo e da cauda das conchas nasais, que foram medidas em µm2. RESULTADOS: Não houve diferença estatisticamente significativa no padrão de distribuição do epitélio glandular da lâmina própria. CONCLUSÃO: O presente estudo mostra que não existe predomínio em uma região específica, na distribuição do epitélio glandular, nas diferentes áreas das conchas nasais inferiores no sentido ântero-posterior em pacientes normais.
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- 2009
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22. Effects of Polymeric Zinc Propylen-Bis-Dithiocarbamate (Propineb) on Nasal Mucosa in Rats.
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Samancı, Baver, Arslan, Eda, Samancı, Seyla Bolukbası, Caypınar, Basak, Deveci, Engin, Söker, Sevda, and Seker, Ugur
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DITHIOCARBAMATES , *NASAL mucosa , *HISTOPATHOLOGY , *ZINC compounds , *LABORATORY rats - Abstract
The objective of this study was to evaluate the histopathologic and immunohistochemical effects of propineb on rat nasal mucosa. Twenty adult Sprague-Dawley rats weighing 180-220 g, were used as experimental animals. The rats were divided into propineb and control groups. The control group received distilled water with spray at the same time period. The experiment was terminated after three weeks. In each case, sections of the nosewere taken. In experimental group, microscopic examination of nasal respiratory mucosa revealed that degenerative changes in epithelium were observed in sections of propineb-treated group. There were also leukocyte infiltration and vascular dilatation detected in the connective tissue. We detected CD34-immunoreactive mononuclear cells and endothel cells in the lamina propria of propineb group. In propineb group compared to the control group, the respiratory epithelium, goblet and basal cell nuclei were stained positive for PCNA. Propineb inhalation may be irritating to the nasal mucosa. [ABSTRACT FROM AUTHOR]
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- 2016
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23. Prevalencia de portación nasal de Staphylococcus aureus en niños con discapacidad.
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Molin Queste, Clotilde, Del Valle Ortiz, Elvira, Barrios Lezcano, Patricia, Hermosa Sánchez, Sonia, González Santander, María, Ayala Noguera, Sara, Sánchez Duarte, María, and Cantero Almeida, Lidia
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Introduction: Colonization of the nasal mucosa by Staphylococcus aureus set a carrier state. Which is recognized as a potential source of infection and a high risk factor for subsequent invasive infections. The prevalence of nasal carriage of this germ in disabled children in Paraguay is not known, thus contributing to the knowledge of their frequency and evaluate the profile of sensitivity to common antimicrobials was conducted this study, from May to July 2015. Objective: to determine the prevalence of Staphylococcus aureus nasal carriage and profile of antimicrobial resistance in disabled children. Materials and Methods: A descriptive cross-sectional study in which 80 nasal swabs of children, who attended the service laboratory of SENADIS (Secretaria Nacional por los Derechos Humanos de las Personas con Discapacidad). The identification and sensitivity of germ was accomplished by conventional testing. Results: 80 pediatric patients, 46 boys and 34 girls. 18 isolates of Staphylococcus aureus were obtained, corresponding to a prevalence of 22,5%. Susceptibility testing indicated that 14 strains were MSSA (Methicillin - Sensitive Staphylococcus aureus) and 4 RMSA (Methicillin-resistant Staphylococcus aureus). Conclusion: The prevalence of Staphylococcus aureus in a population with its own characteristics provides valuable data for the epidemiology, reflecting the need for continued vigilance and take steps to reduce associated infections. The detection of RMAR evidences their progress; it is important to evaluate the empirical treatment to primary care. [ABSTRACT FROM AUTHOR]
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- 2016
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24. Nuclear alterations in nasal mucosa epithelial cells of students exposed to formaldehyde.
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Penido Pinheiro, Leon Cleres, Serpa Nascimento, Haniel Moraes, Menegardo, Cristiani Sartorio, Silva, Ronara Gerhardt, Lorenzoni, Diego Coelho, and da Gama de Souza, Leticia Nogueira
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Copyright of Medicina y Seguridad del Trabajo is the property of Escuela Nacional de Medicina del Trabajo - Instituto de Salud Carlos III 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
25. Melanoma primario de mucosa nasal: Presentación de caso y revisión de la literatura
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Lugo-Machado, Juan Antonio, Gutiérrez-Pérez, Martha Lucía, Quintero-Bauman, Alejandra, arragán-Márquez, Fernanda, Sepúlveda-Martínez, Mario, Jiménez-Rodríguez, Martha, and Yocupicio-Hernández, Dalia Iveth
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senos paranasales ,nasal mucosa ,epistaxis ,paranasal sinuses ,melanoma ,mucosa nasal - Abstract
Background: Mucosal melanoma represents one of the pathologies with a lower proportion among tumors of the nose and paranasal sinuses and as a consequence late diagnoses. Objective: To present the case of a male patient in the sixth decade of life with nasal mucosal melanoma and a systematic review of studies reported from 2016 to 2021. Results: The systematic search was carried out from January 2016 to December 2021 in PubMed, Google Scholar and Elsevier; 147 articles that meet the 19 criteria were located. Conclusion: The injury was prevalent in women, there was a higher prevalence in the seventh and eighth decades. The main lesions were epistaxis and nasal obstruction, involved the nasal cavity and paranasal sinuses and the left side was the most common involved. There was high frequency of advanced disease stages and distant metastases and generally with poor 5-year survival. Introducción: Los melanomas de mucosa nasosinusales, representa una de las patologías de menor proporción en las tumoraciones de nariz y senos paranasales y como consecuencia diagnósticos tardíos. Reporte de caso: paciente masculino de la sexta década de la vida, que inicio con cuadro de obstrucción nasal y epistaxis leve, fue enviado para su valoración nuestro hospital de tercer nivel, donde se sometió a biopsia, presentando el resultado histopatológico de melanoma de mucosa nasal. Conclusión: las lesiones se presentaron principalmente como epistaxis y obstrucción nasal, involucraron a la cavidad nasal y senos paranasales y el lado izquierdo fue el más común involucrado. Los estadios de la enfermedad avanzada y metástasis a distancia se presentaron con gran frecuencia y en general con una pobre supervivencia a 5 años.
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- 2021
26. Análisis histopatológico de ratos expuestas crónicamente por inhalación al herbicida ácido 2,4-diclorofenoxiacético (2,4-D)
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Cavallieri, Gabriela Vidotto, Oliveira, Geovana Letícia Fernandes de, Nai, Gisele Alborghetti, Mareco, Edson Assunção, Bizuti, Matheus Ribeiro, Silva, Debora Tavares de Resende e, Salge, Ana Karina Marques, and Rossi, Renata Calciolari
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Toxicidad ,Contagem de Células Sanguíneas ,Mucosa nasal ,Sistema respiratorio ,Sistema respiratório ,Ratones ,Mucosa respiratoria ,Respiratory System ,Toxicity ,Respiratory Mucosa ,Blood Cell Count ,Rats ,Nasal Mucosa ,Mucosa Respiratória ,Toxicidade ,Recuento de células sanguíneas ,Ratos - Abstract
The expansion of 2,4-D consumption raises concerns about the environment and especially human health, as exposure to this chemical agent can cause harmful effects to the body. The aim of this research was to histopathologically evaluate the nasal epithelium and the hematological profile of rats submitted to chronic inhaled spraying of the 2,4-D herbicide. Forty adult male Wistar rats were used, divided into 4 groups, namely: Control Group (GC), Low Concentration Group (GBC), Medium Concentration Group (GMC) and High Concentration Group (GAC). The exposure protocol was carried out using 2 boxes connected to 2 ultrasonic nebulizers, which sprayed the herbicide daily for 15 minutes for 6 months. After the exposure period, a blood sample was collected to prepare the blood count and collection and analysis of the nasal epithelium to quantify the mast cells and inflammatory infiltrate. There was a statistically significant difference in relation to the Mean Corpuscular Hemoglobin Concentration (CHCM) values of the GBC when compared to the CG, but the CG had high values and the GBC had values whin the normal range. Regarding the other hematological parameters evaluated, mast cells and inflammatory infiltrate were not observed statistically significant differences in the groups exposed to the 2,4-D herbicide when compared to the CG. Thus, the 2,4-D herbicide showed no toxicity to hematological parameters and nasal epithelium of Wistar rats after chronic inhalation exposure for a period of 6 months when compared to the control group. La expansión del consumo de 2,4-D genera preocupaciones sobre el medio ambiente y especialmente la salud humana, ya que la exposición a este agente químico puede causar efectos nocivos para el cuerpo. El objetivo de esta investigación fue evaluar histopatológicamente el epitelio nasal y el perfil hematológico de ratones sometidos a aspersión crónica inhalada del herbicida 2,4-D. Se utilizaron cuarenta ratones Wistar macho adultos, divididos en 4 grupos, a saber: Grupo de control (GC), Grupo de baja concentración (GBC), Grupo de concentración media (GMC) y Grupo de alta concentración (GAC). El protocolo de exposición se llevó a cabo utilizando 2 cajas conectadas a 2 nebulizadores ultrasónicos, que rociaron el herbicida diariamente durante 15 minutos durante 6 meses. Después del período de exposición, se tomó una muestra de sangre para preparar el recuento sanguíneo y la recolección y análisis del epitelio nasal para cuantificar los mastocitos y el infiltrado inflamatorio. Hubo una diferencia estadísticamente significativa en relación a los valores de Concentración de Hemoglobina Corpuscular Media (CHCM) del GBC en comparación con el GC, pero el GC tuvo valores altos y el GBC tuvo valores dentro del rango normal. En cuanto al resto de parámetros hematológicos evaluados, los mastocitos y el infiltrado inflamatorio no se observaron diferencias estadísticamente significativas en los grupos expuestos al herbicida 2,4-D en comparación con el GC. Por lo tanto, el herbicida 2,4-D no mostró toxicidad para los parámetros hematológicos y el epitelio nasal de las ratones Wistar después de la exposición crónica por inhalación durante un período de 6 meses en comparación con el grupo de control. A expansão do consumo do 2,4-D traz preocupações em relação ao meio ambiente e principalmente a saúde humana, pois a exposição a esse agente químico poderá gerar efeitos nocivos ao organismo. O objetivo da presente pesquisa foi avaliar histopatologicamente o epitélio nasal e o perfil hematológico de ratos submetidos à pulverização crônica por via inalatória do herbicida 2,4-D. Foram utilizados 40 ratos Wistar adultos machos, divididos em 4 grupos, sendo eles: Grupo Controle (GC), Grupo Baixa Concentração (GBC), Grupo Média Concentração (GMC) e Grupo Alta concentração (GAC). O Protocolo de exposição foi realizado através de 2 caixas ligadas a 2 dois nebulizadores ultrassônicos, que realizaram a pulverização diária do herbicida por 15 minutos, durante 6 meses. Após o período de exposição, foi feita a coleta de amostra de sangue para confecção do hemograma e coleta e análise do epitélio nasal para quantificação dos mastócitos e infiltrado inflamatório. Houve diferença estatisticamente significativa em relação aos valores de Concentração de Hemoglobina Corpuscular Média (CHCM) do GBC quando comparado ao GC, porém o GC estava com valores elevados e o GBC estava com valores dentro dos padrões de normalidade. Em relação aos outros parâmetros hematológicos avaliados, os mastócitos e o infiltrado inflamatório não foram observados diferença estatisticamente significativa dos grupos expostos ao herbicida 2,4-D quando comparados ao GC. Sendo assim, o herbicida 2,4-D não demonstrou toxicidade aos parâmetros hematológicos e epitélio nasal de ratos Wistar após exposição crônica inalatória no período de 6 meses quando comparados ao grupo controle.
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- 2021
27. Primary melanoma of the nasal mucosa: case presentation and systematic review of the literature
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Martha Lucía Gutiérrez-Pérez, Martha Jiménez-Rodríguez, Dalia Iveth Yocupicio-Hernández, Fernanda arragán-Márquez, Mario Sepúlveda-Martínez, Juan Antonio Lugo-Machado, and Alejandra Quintero-Bauman
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Nasal cavity ,medicine.medical_specialty ,Mucosa nasal ,Tumor ,business.industry ,Senos paranasales ,Late Diagnoses ,Mucosal melanoma ,medicine.disease ,Nasal mucosa ,Dermatology ,medicine.anatomical_structure ,Paranasal sinuses ,Epistaxis ,Male patient ,otorhinolaryngologic diseases ,medicine ,Advanced disease ,business ,Melanoma ,Nose ,Systematic search - Abstract
Introducción: Los melanomas de mucosa nasosinusales, representa una de las patologías de menor proporción en las tumoraciones de nariz y senos paranasales y como consecuencia diagnósticos tardíos. Reporte de caso: paciente masculino de la sexta década de la vida, que inicio con cuadro de obstrucción nasal y epistaxis leve, fue enviado para su valoración nuestro hospital de tercer nivel, donde se sometió a biopsia, presentando el resultado histopatológico de melanoma de mucosa nasal. Conclusión: las lesiones se presentaron principalmente como epistaxis y obstrucción nasal, involucraron a la cavidad nasal y senos paranasales y el lado izquierdo fue el más común involucrado. Los estadios de la enfermedad avanzada y metástasis a distancia se presentaron con gran frecuencia y en general con una pobre supervivencia a 5 años. Background: Mucosal melanoma represents one of the pathologies with a lower proportion among tumors of the nose and paranasal sinuses and as a consequence late diagnoses. Objective: To present the case of a male patient in the sixth decade of life with nasal mucosal melanoma and a systematic review of studies reported from 2016 to 2021. Results: The systematic search was carried out from January 2016 to December 2021 in PubMed, Google Scholar and Elsevier; 147 articles that meet the 19 criteria were located. Conclusion: The injury was prevalent in women, there was a higher prevalence in the seventh and eighth decades. The main lesions were epistaxis and nasal obstruction, involved the nasal cavity and paranasal sinuses and the left side was the most common involved. There was high frequency of advanced disease stages and distant metastases and generally with poor 5-year survival.
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- 2021
28. Hemostasia rápida: um procedimento ambulatorial novo e eficaz utilizando ablação por micro-ondas para controlar a epistaxe de lesões isoladas protuberantes da mucosa
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Zhengcai Lou
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Adult ,Rhinology ,medicine.medical_specialty ,Perforation (oil well) ,Forceps ,Epistaxe ,Micro-ondas ,03 medical and health sciences ,0302 clinical medicine ,Outpatients ,Humans ,Medicine ,Outpatient clinic ,Local anesthesia ,030223 otorhinolaryngology ,Microwaves ,Retrospective Studies ,Hemostasis ,Perfuração do septo nasal ,Nasal Septal Perforation ,Mucosa nasal ,business.industry ,Microwave ablation ,Nasal mucosa ,Surgery ,Treatment Outcome ,Epistaxis ,Otorhinolaryngology ,RF1-547 ,030220 oncology & carcinogenesis ,business ,Nasal septal perforation - Abstract
Introduction Recurrent epistaxis is commonly encountered in the rhinology outpatient clinic. Under endoscopic guidance, both bipolar cautery and monopolar forceps (combined with suction) have been employed to control the bleeding. However, the use of monopolar forceps requires the placement of grounding pads. Most procedures are currently performed in operating rooms. Objective We investigated outcomes after the use of Microwave Ablation (MWA) to control epistaxis in adults with isolated mucosal bulge lesions. All procedures were performed with patients under local anesthesia in our outpatient clinic. Methods This is a retrospective cohort study. We included 83 adults with epistaxis of isolated mucosal bulge lesions. Microwave ablation was performed in the outpatient clinic to control bleeding, after induction of local anesthesia. The primary outcome was successful hemostasis. The secondary outcomes were the rebleeding rates at weeks 1 and 4 and month 6, and complications (crust or synechiae formation, septal perforation, and/or orbit or brain complications). Results All bleeding points were successfully ablated; hemostasis was achieved within 1-2 min. The mean pain score was 1.83 intra-operatively and 0.95 1 h postoperatively. No patient re-bled, and no severe MWA-related complication (septal perforation, synechiae formation, or orbit or brain complication) was recorded to 6 months of follow-up. Conclusions Endoscopic microwave ablation with patients under local anesthesia is a novel, safe, effective, rapid, well-tolerated, outpatient treatment for adults with epistaxis of isolated mucosal bulge lesions, especially those for whom general anesthesia might be risky, those with electrical implants, and those exhibiting contraindications for arterial embolization. Resumo Introdução Epistaxe recorrente é comumente encontrada no ambulatório de rinologia. Sob orientação endoscópica, foram empregados tanto o cautério bipolar quanto a pinça monopolar (combinados à sucção) para controlar a condição. No entanto, o uso de pinças monopolares requer a colocação de placas de aterramento. Atualmente, a maioria dos procedimentos é feita em salas de cirurgia. Objetivo Investigamos os resultados após o uso da ablação por micro-ondas (MWA, do inglês Microwave Ablation) no controle da epistaxe em adultos com lesões isoladas protuberantes da mucosa. Todos os procedimentos foram feitos em nosso ambulatório com os pacientes sob anestesia local. Métodos Estudo de coorte retrospectivo. Foram incluídos 83 adultos com epistaxe de lesões isoladas protuberantes da mucosa. A ablação por micro-ondas foi feita no ambulatório para controlar o sangramento, após a administração de anestesia local. O desfecho primário foi uma hemostasia bem-sucedida. Os desfechos secundários foram as taxas de ressangramento, nas semanas 1 e 4 e no mês 6, e complicações (formação de crostas ou sinéquias, perfuração septal e/ou complicações orbitais ou cerebrais). Resultados Todos os pontos de sangramento foram contidos com sucesso; a hemostasia foi alcançada em 1-2 minutos. O escore médio de dor foi de 1,83 no intraoperatório e de 0,95 1 h no pós-operatório. Nenhum paciente apresentou ressangramento e nenhuma complicação grave relacionada à MWA (perfuração septal, formação de sinéquias ou complicações orbitais ou cerebrais) foi registrada em 6 meses de seguimento. Conclusões A ablação endoscópica por micro-ondas com pacientes sob anestesia local é um tratamento ambulatorial novo, seguro, eficaz, rápido e bem tolerado para adultos com epistaxe de lesões isoladas protuberantes da mucosa, especialmente aqueles para os quais a anestesia geral pode ser arriscada, indivíduos com implantes elétricos e aqueles com contraindicações para embolização arterial.
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- 2021
29. Investigadores del CSIC buscan reforzar las mucosas nasales y orales para impermeabilizarlas ante el SARS-CoV-2
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Sotres, Ana and Sotres, Ana
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El proyecto desarrolla un aerosol con lípidos similares a los de la piel que emulen su impermeabilidad al aplicarlos en las mucosas y disminuyan o eviten la penetración del virus
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- 2020
30. Evaluation of electronic microscopy, saccharin test, clinical and genetic characteristics in patients with primary ciliary dyskinesia clinical diagnosis
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Toro, Mariana Dalbo Contrera, 1989, Ribeiro, José Dirceu, 1952, Sakano, Eulalia, 1950, Dalcin, Paulo de Tarso Roth, Anselmo-Lima, Wilma Terezinha, Universidade Estadual de Campinas. Faculdade de Ciências Médicas, Programa de Pós-Graduação em Saúde da Criança e do Adolescente, and UNIVERSIDADE ESTADUAL DE CAMPINAS
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Diagnóstico clínico ,Mucosa nasal ,Saccharin ,Microscopy, Electron, Transmission ,Sacarina ,Transtornos da motilidade ciliar ,Microscopia eletrônica de transmissão ,Nasal mucosa ,Clinical diagnosis ,Ciliary Motility Disorders - Abstract
Orientadores: José Dirceu Ribeiro, Eulália Sakano Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas Resumo: Introdução: A presente dissertação foi realizada segundo as normas do curso de pós-graduação da FCM/Unicamp. Foram apresentados e discutidos dois artigos: Artigo 1: "Saccharin transit time test for primary ciliary dyskinesia: did we discard this tool too soon?" e Artigo 2: "Challenges in Diagnosing Primary Ciliary Dyskinesia in a Brazilian Tertiary Hospital". A discinesia ciliar primária (DCP) é uma doença genética cujas alterações na ultraestrutura ciliar e função ciliar cursam com repercussões clínicas importantes. Devido a ampla variabilidade de fenótipos e genótipos e por não existir um teste padrão ouro, ainda há grande dificuldade na confirmação diagnóstica dessa doença. Objetivos: Artigo 1: O objetivo deste estudo foi comparar as alterações na microscopia eletrônica (MET) com variáveis clínicas e teste da sacarina em indivíduos com diagnóstico clínico de DCP. Artigo 2: O objetivo deste estudo foi descrever os achados clínicos e as alterações nas ferramentas diagnósticas (MET, genética e questionários clínicos) em indivíduos com suspeita clínica de DCP em um Hospital Terciário Brasileiro. Método: Artigo 1: Estudo prospectivo observacional foi realizado no ambulatório de otorrinolaringologia no período de agosto de 2012 a abril de 2021. Foram avaliados os pacientes do grupo controle e do grupo DCP. Esses pacientes foram submetidos aos questionários de triagem clínica PICADAR (PrImary CiliAry DyskinesiA Rule) e American Thoracic Society, endoscopia nasal, teste do tempo de trânsito da sacarina e biópsia nasal para análise em microscopia eletrônica. Artigo 2: Foi realizado um estudo observacional e prospectivo com indivíduos durante o acompanhamento no Hospital das Clínicas da Universidade Estadual de Campinas (HC-Unicamp) por suspeita clínica de DCP. Os pacientes foram avaliados entre 2011 e 2021 e submetidos a questionários clínicos, MET e análises de variantes genéticas. Esses pacientes foram classificados de acordo com o grau de suspeita de DCP. Resultados: Artigo 1: foram avaliados 34 pacientes com diagnóstico clínico de DCP e 36 controles. As alterações clínicas mais prevalentes foram pneumonias de repetição, bronquiectasias e rinossinusite crônica. A análise por microscopia eletrônica confirmou o diagnóstico clínico de DCP em 16/34 (47,1%) pacientes. Houve associação entre o teste de sacarina maior que 30 minutos e o diagnóstico clínico de DCP. Artigo 2: Trinta e sete pacientes foram incluídos no estudo, destes, vinte pacientes apresentavam RSC (54,1%), 28 bronquiectasias (75,6%) e 29 pneumonias de repetição (78,4%). Um total de 20 (54%) indivíduos tiveram confirmação genética ou por MET de PCD. A média de idade ao diagnóstico foi de 15 anos e o tempo médio entre a suspeita e o diagnóstico foi de 5 anos. Um total de 17 indivíduos foram submetidos a testes de variantes genéticas, dos quais 10 apresentaram variantes patogênicas positivas para PCD. Conclusão: Artigo 1: A microscopia eletrônica ajudou a confirmar o diagnóstico de DCP. O teste da sacarina mostrou-se capaz de auxiliar na triagem de um paciente com DCP, devido à sua associação com alterações clínicas. Artigo 2: Este estudo descreve os achados clínicos, MET e genéticos em uma população de um hospital terciário e demonstra a importância da suspeita clínica de DCP em pacientes com infecções respiratórias superiores e inferiores anormais ou evolução incomum de sintomas clínicos, mesmo em indivíduos sem alterações de situs. O teste genético provou ser um método simples que pode melhorar o diagnóstico e o tratamento, e ajudar nas decisões médicas do paciente no futuro Abstract: Introduction: The present thesis was performed according to the norms of the FCM/Unicamp post-graduation course. Two articles were presented and discussed. Article 1: "Saccharin transit time test for primary ciliary dyskinesia: did we discard this tool too soon?" e Artigo 2: "Challenges in Diagnosing Primary Ciliary Dyskinesia in a Brazilian Tertiary Hospital". Primary ciliary dyskinesia (PCD) is a genetic disease whose changes in ciliary ultrastructure and ciliary function have important clinical repercussions. Due to the great variability of phenotypes and genotypes and because there is no gold standard test, there is still great difficulty in confirming the diagnosis of this disease. Aim: Article 1: The aim of this study was to compare changes in electron microscopy with clinical variables and saccharin test in individuals with a clinical PCD diagnosis. Article 2: The aim of this study was to describe the clinical findings and alterations in the diagnostic tools (TEM, genetics, and clinical questionnaires) in individuals with clinical suspicion of PCD from a Brazilian Tertiary Hospital.Method: Article 1:Observational prospective study was carried out in the otorhinolaryngology outpatient clinic from August 2012 to April 2021. Patients in the control group and PCD group were evaluated. These patients were submitted to the PICADAR (PrImary CiliAry DyskinesiA Rule) and American Thoracic Society clinical screening questionaries, nasal endoscopy, saccharin transit time test, and nasal biopsy for analysis in electron microscopy. Article 2: An observational and prospective study was carried out with individuals during the follow-up at the Hospital das Clínicas of the University of Campinas (HC-Unicamp) due to clinical suspicion of PCD. Patients were evaluated between 2011 and 2021, and were submitted to clinical questionnaires, TEM, and genetic variants analyses. Those patients were classified according to the degree of suspicion for PCD. Results: Article 1: 34 patients with clinical PCD diagnosis and 36 controls were evaluated. The most prevalent clinical changes were recurrent pneumonia, bronchiectasis, and chronic rhinosinusitis. The electron microscopy analysis confirmed the clinical PCD diagnosis in 16/34 (47.1%) patients. There was an association between saccharin test greater than 30 minutes and clinical PCD diagnosis. Article 2: Thirty-seven patients were included in the study, of those, twenty patients had CRS (54,1%), 28 had bronchiectasis (75,6%) and 29 had recurrent pneumonia (78,4%). A total of 20 (54%) individuals had either TEM or genetic confirmation of PCD. The mean age at diagnosis was 15 years old and the mean time between suspicion and diagnosis was 5 years. A total of 17 individuals underwent genetic variants testing, of which 10 had positive pathogenic variants for PCD. Conclusion: Article 1: Electron microscopy helped to confirm the PCD diagnosis. The saccharin test proved to be capable of assisting in the screening of a patient's with PCD, due to its association with clinic alterations. Article 2: This study described clinical, TEM and genetic findings in a population of a tertiary hospital and demonstrates the importance of the clinical suspicion for PCD in patients with abnormal upper and lower respiratory infections, or unusual evolution of clinical symptoms, even in individuals without situs alterations. Genetic testing proved to be a straightforward method that can improve diagnosis and treatment and help future patient's decisions Mestrado Saúde da Criança e do Adolescente Mestra em Ciências
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- 2021
31. Características epidemiológicas de pacientes que presentan portación nasal de staphylococcus aureus meticilino resistente
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Rosa Isabel Milanés Pérez, Helen Carolina Silva Lamus, Octavio Arzuza Navarro, and Álvaro Álvarez Coneo
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Cefalotin ,Gynecology ,medicine.medical_specialty ,Medicine (General) ,Staphylococcus aureus ,Mucosa nasal ,business.industry ,Infecciones bacterianas ,SCCmec ,Clindamycin ,Mucous membrane of nose ,General Medicine ,medicine.disease_cause ,Surgery ,R5-920 ,Levofloxacin ,medicine ,Vancomycin ,business ,Rifampicin ,medicine.drug - Abstract
Introduccion: la portacion nasal de S. aureus es considerada un riesgo tanto para infecciones nosocomiales como comunitarias. El comportamiento creciente de las infecciones causadas por cepas de Staphylococcus aureus meticilino resistentes (SAMR) en individuos con poca o ninguna exposicion a factores de riesgo conocidos indica una variabilidad en el comportamiento microbiologico y epidemiologico de estas cepas. Objetivos: describir caracteristicas sociodemograficas y clinicas de los pacientes adultos ambulatorios que asisten a consulta de otorrinolaringologia que presentan enfermedad nasal y portadores nasales de S. aureus / SAMR. Establecer los patrones de susceptibilidad a antibioticos de las cepas de S aureus aisladas. Material y metodos: estudio observacional, descriptivo, prospectivo en 226 pacientes que consultaron por afecciones nasales a la consulta externa seccion de otorrinolaringologia del Hospital Universitario del Caribe, Cartagena, Colombia, entre agosto de 2012 a agosto de 2013. Realizacion de encuesta, toma de muestra mediante hisopado nasal, revision de historia clinica, incubacion e identificacion bacteriana de las muestras nasales. Resultados: se tamizaron 226 pacientes, 19 pacientes (8.4%) presentaban S. aureus y de estos, el 63.2% fueron meticilino-sensibles (SAMS) y 36.8% fueron documentados resistentes a la meticilina (SAMR), la mediana de edad en los pacientes con S. aureus fue de 41 anos (RI= 26 – 54). La proporcion de pacientes del sexo femenino fue de 68.4%. De los aislamientos con SAMR solamente el 28.6% provenian de la ciudad de Cartagena. La rinitis alergica seguida de hipertrofia de cornetes fueron las condiciones otorrinolaringologicas mas frecuentes en estos pacientes. Ninguna comparacion fue significativa entre los SAMS y SAMR. Los patrones de susceptibilidad antibiotica documentaron que las cepas de S. aureus fueron sensibles a linezolid, gentamicina, rifampicina, vancomicina y cloranfenicol. 94,7% sensible a levofloxacina y tetraciclina, 89.4% a ciprofloxacina y 73.6% a clindamicina. La sensibilidad intermedia fue demostrada en el 52.6% para eritromicina, 21% para cefalotina, 10.5% para clindamicina y 5.2% para ciprofloxacina y tetraciclina. Finalmente, la resistencia antibiotica tuvo su mayor porcentaje en la penicilina con un 84.2%, seguido de 78.9% para ampicilina, 52.6% cefalotina, 36.8% para oxacilina y 5.2% para levofloxacina, eritromicina y ciprofloxacina. El disco de cefoxitin fue utilizado para la prediccion de resistencia a meticilina mediada por el gen mecA con una positividad en 36.8% (7 pacientes). Conclusiones: 7 (3.1%) de los 226 pacientes adultos que fueron tamizados presentaron aislamiento nasal por SAMR. Este es el primer reporte de colonizacion por aislamientos de SAMR en pacientes ambulatorios de la consulta de otorrinolaringologia de un hospital de tercer nivel en Cartagena, Colombia. Rev.cienc.biomed. 2015;6(1):85-95 PALABRAS CLAVE Staphylococcus aureus; Mucosa nasal; Infecciones bacterianas. SUMMARY Introduction: to be nasal carrier of S. Aureus is considered a risk for nosocomial and community infections. The increasing behavior of the infections caused by strains of Methicillin-Resistant Staphylococcus Aureus (MRSA) in individuals with low or not one exposition to known risk factors indicate a variability in the microbiological and epidemiological behavior of these strains. Objectives: to describe sociodemographic and clinical characteristics of the adult outpatients, who attend to the otolaryngology consultation and present nasal disease and are nasal carriers of S. Aureus/MRSA. To establish the susceptibility patterns to antibiotics of the strains of isolated S aureus. Methods: Observational, descriptive and prospective study carried out in 226 patients who consulted for nasal alterations to the medical consultation of otolaryngology in the Hospital Universitario del Caribe, Cartagena, Colombia, since August 2012 to August 2013. A survey was done, just like samples by means of nasal swabs were taken and review of the clinical record and incubation and bacterial identification of nasal samples were carried out. Results: 226 patients were weighed up, 19 patients (8.4%) presented S. aureus and of these, 63.2% were methicillin-susceptible Staphylococcus aureus (MSSA) and 36.8% were documented as MRSA. The median of age in the patients with S. aureus was 41 years (IR= 26 – 54). The proportion of patients belonging to the female gender was 68.4%. Of the isolations with MRSA only the 28.6% came from Cartagena. The allergic rhinitis followed of turbinates hypertrophy were the most frequent Otolaryngologic conditions in these patients. No comparison was significant between the MRSS and MRSA. The antibiotic susceptibility patterns informed that strains of S. aureus were sensible to Linezolid, Gentamicin, Rifampicin, Vancomycin and Chloramphenicol. 94,7% were sensible to Levofloxacin and Tetracycline, 89.4% were sensible to Ciprofloxacin and 73.6% to Clindamycin. The intermediate susceptibility was demonstrated in the 52.6% for Erythromycin, 21% for Cefalotin, 10.5% for Clindamycin and 5.2% for Ciprofloxacin and Tetracycline. Finally, the antibiotic resistance had its higher percentage in the Penicillin with 84.2%, followed by 78.9% for Ampicillin, 52.6% Cefalotin, 36.8% for Oxacillin and 5.2% for Levofloxacin, Erythromycin and Ciprofloxacin. The Cefoxitin disk was used for the prediction of resistance to methicillin mediated by the mecA gene with positive results in 36.8% (7 patients). Conclusions: 7 (3.1%) of the 226 adult patients that were weighed up presented nasal isolation by SARM. This is the first report of colonization by MRSA isolations in outpatients of the otolaryngology consultation in a third level hospital in Cartagena, Colombia . Rev.cienc.biomed. 2015;6(1):85-95 KEYWORDS Staphylococcus aureus; Nasal mucosa; Bacterial Infections.
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- 2020
32. ¿Son significativas en los pacientes con leucemia aguda?
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Barranco-Lampón, Gilberto, Mendoza-García, Carlos Alberto, Cabrera-Osuna, Silvia, Olarte-Carrillo, Irma, Ventura, Yanet, Gutiérrez-Romero, Mario, Martínez-Murillo, Carlos, Martínez-Tovar, Adolfo, and Ramos-Peñafiel, Christian Omar
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CULTURES (Biology) , *BIOLOGY methodology , *NASAL mucosa , *STAPHYLOCOCCUS aureus , *BACTEREMIA , *LEUKEMIA , *PATIENTS - Abstract
Isolated bacteria from nasal cultures. Are they important in patients with acute leukemia? Background: The nasal colonization by Staphylococcal (epidermidis or aureus) is frequent and it has importance when it is associated to bacteremia in immunocompromised patients. The objective was to determine the frequency of strains that colonize the nasal mucosa in patients with leukemia and its relationship with peripheral blood cultures. Methods: A retrospective, observational, transversal, retrolective study was done. We analyzed the weekly results of nasal cultures and peripheral blood cultures in patients with leukemia undergoing chemotherapy. The 3c2test and odds ratio value were estimated in the statistical analysis. Results: We included 67 patients, 55 of them with acute lymphocytic leukemia (ALL); 28.5 % of the cultures (n = 47) corresponded to a positive nasal culture. Staphylococcus epidermidis and Staphylococcus aureus were the most isolated bacteria. During the first week of treatment, the positive cultures were the most frequently. All the samples isolated were sensitive to vancomycin or linezolid. It was established only the association between negative nasal cultures and negative peripheral blood cultures (p = 0.0005). Odds ratio for positive nasal cultures and the risk of bacteremia was 0.0269. Conclusions: The frequency of the positive bacteria culture was low, with an adequate sensitivity measure. The presence of bacteria in nasal culture was not identified asa risk factor for the occurrence of bacteremia. [ABSTRACT FROM AUTHOR]
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- 2014
33. Variantes anatómicas asociadas a desviación del septum nasal identificadas por tomografía computarizada en una clínica privada de Lima 2018
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Lorena del Pilar, Córdova Sánchez and Sánchez Gavidia, Joseph Jesús
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Tomografía ,Mucosa nasal ,Cornetes nasales ,purl.org/pe-repo/ocde/ford#3.02.23 [http] - Abstract
Objetive: To describe the anatomical variants of the nasal turbinates and the thickening of the nasal mucous of paranasal sinuses identificate by simple computed tomography of the paranasal sinuses in patients with nasal septal deviation. Methodology: Observational, analytical, cross sectorial and retrospective research. The 227 cases of adult patients with nasal septal deformity were studied, classified according to Mladina and its anatomical variants identified by computed tomography during the year 2018 at the Clínica Internacional of Lima. Data were collection on a sheet tabulated and analyzed using Stata version 15 with a level of significance of 95%. Results: In the upper turbinates, 3% had pneumatization and about 18.5% were absent; in the middle, 70% preseted variations, the most frecuent variant being hypertrophy followed by concha bullosa and paradoxical with 30.84%; 14.98% and 7.89% respectively. In the inferior turbinates, 75.77% were hyperthophy, 64.3% presented thickening of the mucous of the paranasal sinuses. The association was stadistically significant between the presence of spur, alteration of the nasal valve with to the type of Mladina deformity and the vertical types were the most frecuent. Conclusion: Patients with nasal septal deformity have a higher frecuency of nasal valve alteration and mucous thickening of the paranasal sinuses. The most frecuency anatomical variants of middle turbinates are hypertrophy and concha bullosa, in the inferior are hypertrophy and the presence of spurs and alterations of the nasal valve are associate with type of Mladina deformity. Objetivo: Describir las variantes anatómicas de los cornetes nasales y el engrosamiento de la mucosa paranasal identificados por tomografía computarizada simple de senos paranasales en pacientes con desviación del septum nasal. Metodología: Investigación de tipo observacional, analítico, transversal y retrospectivo. Se estudiaron 227 casos de pacientes adultos con deformidad septal, clasificados según Mladina y sus variantes anatómicas identificadas por tomografía computarizada durante el año 2018 en Clínica Internacional de Lima. Los datos se recolectaron en una ficha, se tabularon y analizaron mediante Stata versión 15, con un nivel de significancia del 95%. Resultados: En los cornetes superiores, solo el 3% tuvo neumatización y el 18.5% estuvo ausente; en los medios, el 70% presentó variaciones siendo la más frecuente la hipertrofia seguido de bulloso y paradójico con un 30.84; 14.98 y 7.98% respectivamente. En los cornetes inferiores, el 75.77% fue hipertrófico. El 64.3% presentó engrosamiento de la mucosa paranasal. La asociación fue estadísticamente significativa entre la presencia de espolón, alteración de la válvula con el tipo de deformidad de Mladina y los tipos verticales fueron los más frecuentes. Conclusión: Los pacientes con deformidad septal nasal tienen mayor frecuencia de alteración de la válvula nasal y engrosamiento mucoso paranasal. Las variantes anatómicas más frecuentes de los cornetes medios son la hipertrofia y la concha bullosa, en los inferiores la hipertrofia y la presencia de espolón y alteración de la válvula nasal se asocian al tipo de deformidad de Mladina.
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- 2020
34. Evolução das lesões nasais em pacientes com hanseníase
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Maria Virgínia Rodrigues Ferreira Julio, Susilene Maria Tonelli Nardi, Heloisa da Silveira Paro Pedro, and Vânia Del’ Arco Paschoal
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hanseníase ,mucosa nasal ,obstrução nasal ,incapacidades e saúde ,morbidade ,Infectious and parasitic diseases ,RC109-216 - Abstract
Doença causada pelo bacilo Mycobacterium leprae, a hanseníase ataca a pele e os nervos periféricos, em especial dos olhos, do nariz, das mãos e dos pés. Sua maior morbidade associa-se aos estados reacionais e ao acometimento neural que podem causar deficiências físicas, comprometendo a qualidade de vida dos pacientes. Este estudo teve como finalidade descrever as alterações e avaliar a evolução das lesões nasais encontradas durante o tratamento de hanseníase com poliquimioterapia, mediante avaliações realizadas pelo profissional no serviço de prevenção e de reabilitação das incapacidades físicas. Os resultados demonstraram que a lesão nasal é freqüente (69,8%). A lesão mais encontrada foi o ressecamento (38,2%), seguido de crostas (23,6%) e de obstrução nasal (8%). Considerando reavaliações e orientações quanto aos cuidados com o nariz no sentido de prevenir lesões e de cuidar das já instaladas, o acompanhamento do paciente ao longo do tratamento resultou em melhora das lesões em 47,2% dos casos, em manutenção da lesão em 39,5% dos casos, em ausência de lesão em 6,3% e em piora das lesões em 7% dos casos. O nariz deve ser elencado como local de avaliação e de cuidados na rotina de atendimento em prevenção de incapacidades na hanseníase.
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- 2010
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35. Alteraciones histopatológicas del epitelio nasal en pacientes respiratorios crónicos
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Lorena Viettro and Mónica Brauer
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MUCOSA NASAL ,MICROSCOPÍA ELECTRÓNICA DE RASTREO ,ENFERMEDADES RESPIRATORIAS ,ENFERMEDAD CRÓNICA ,Medicine ,Medicine (General) ,R5-920 - Abstract
El revestimiento epitelial de las vías respiratorias, conjuntamente con el transporte mucociliar, forman parte de la primera línea de defensa del aparato respiratorio. Las condiciones que alteran la integridad epitelial o afectan la eficiencia del transporte mucociliar conducen o favorecen la recurrencia de la enfermedad respiratoria. En el presente trabajo reportamos los resultados obtenidos del estudio por histología de alta resolución y microscopía electrónica de barrido del epitelio nasal de 33 pacientes respiratorios crónicos. Todos las biopsias de cornete inferior analizadas presentaron algún tipo de anomalía epitelial, no detectándose en ningún caso el epitelio seudoestratificado cilíndrico ciliado que normalmente reviste las vías respiratorias. En 17 de los 33 pacientes se reconocieron epitelios ciliados con distintos grados de atipía, mientras que en los 16 restantes se observó la sustitución total de las células ciliadas por tipos celulares no ciliados, tales como células basales, células caliciformes y células escamosas. En 27% de los casos las alteraciones epiteliales del cornete inferior se presentaron en pacientes que portaban afecciones ciliares primarias, mientras que en 52% se presentaron en pacientes que mostraban alteraciones ciliares inespecíficas o ausencia de cilias. En 21% de los casos se detectaron afecciones epiteliales en pacientes que tenían una ultraestructura ciliar normal. Los datos obtenidos confirman el concepto de que las alteraciones epiteliales pueden presentarse a consecuencia de los desórdenes ciliares primarios o secundarios, y resultar también de la injuria prolongada provocada por diversas enfermedades respiratorias crónicas, tales como neumonías, bronquitis, rinitis, sinusitis y asma. Dado que la inflamación e infección respiratoria recurrente retrasa la regeneración del epitelio normal, la detección precoz de estas alteraciones histopatológicas epiteliales y sus afecciones ciliares asociadas es clave para evitar la instalación de formas epiteliales no ciliadas irreversibles.
- Published
- 2005
36. The Effects of Systemic Use of Nicotine on the Rat Nasal, Mucosa: a Histopathologic and Immunohistochemical Study.
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Yorgancilar, Ediz, Tunik, Selcuk, Deveci, Engin, Gun, Ramazan, Bakir, Salih, Kinis, Vefa, Ayaz, Ercan, and Topcu, Ismail
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- *
PHYSIOLOGICAL effects of nicotine , *NASAL mucosa , *HISTOPATHOLOGY , *IMMUNOHISTOCHEMISTRY , *DRUG administration , *CADHERINS , *RATS as carriers of disease - Abstract
The objective of this study was to evaluate the histopathologic effects of systemic use of nicotine on the rat nasal mucosa. Twelve adult Sprague-Dawley rats weighing 180-220 g, were used as experimental animals. The rats were divided into Nicotine and control groups. The rats of Nicotine groups (n=6) were administered 2mg/kg Nicotine sulphate for 28 days. The rats of control group (n=6) were only administered 1,5 ml physiologic saline solution subcutaneously for 28 days. All animals were sacrified at the end of the study and nasal tissue samples were removed and prepared for histologic examination. The sections were stained with Hematoxylin and Eosin (H-E) and Periodic acid-Schiff (PAS) and Trichrome-Masson were observed under light microscope. E-cadherin immunreactivity of pseudostrafied epithelial cells of nasal mucosa was assessed by immunohistochemical staining. There were significant differences in average histopathological score between the groups treated and non-treated to nicotine. In nicotine group, degenerative change of epithelial cells and hypertrophy of goblet cells were observed. Leukocytes infiltration was observed in significant areas of connective tissue. E-cadherin expression was significantly decreased in epithelial cells of the nasal mucosa of Nicotine group. [ABSTRACT FROM AUTHOR]
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- 2012
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37. Inmunohistochemical Evaluation of Estrogen Receptors Alpha and Beta in Normal Inferior Turbinate Mucosa.
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Millas, Ieda, Liquidato, Bianca Maria, Lutaif Dolci, José Eduardo, Macéa, José Rafael, Fregnani, José Humberto Tavares Guerreiro, and Meceles, Lenira Rocha
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- *
NASAL mucosa , *ESTROGEN receptors , *NEUROPEPTIDES , *CYTOKINES , *NASAL surgery , *IMMUNOHISTOCHEMISTRY - Abstract
It has been postulated that the nasal mucosa, like other human tissues, is affected by a complex interactive network of neuropeptides, cytokines, allergic and inflammatory mediators and hormones such as estrogen, in which associations between symptoms (e.g. nasal stuffiness and coryza) and hormonal variations deriving from pregnancy, use of hormonal contraceptives and menstrual cycle phases are observed. The objective is evaluating the presence of specific estrogen receptors (types alpha and beta) in inferior turbinate mucosa in healthy subjects without nasal symptoms. Samples of nasal inferior turbinate were removed from patients undergoing aesthetic nasal surgery, and analyzed using hematoxylin-eosin staining, followed by immunohistochemical preparations on paraffin-embedded sections from the material sample, to detect estrogen receptors alpha and beta. Positive immunohistochemical reactions for both beta and alpha receptors were found in various regions of the inferior nasal turbinate. In conclusion both alpha and beta receptors were found, though the expression of beta was greater and more intense in the anterior portion of the inferior turbinate. No difference was found between male and female patients regarding the intensity of expression of receptors in the inferior turbinate. [ABSTRACT FROM AUTHOR]
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- 2010
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38. Histopathological analysis in rats chronically exposed by inhalation to the herbicide 2,4-Dichlorophenoxyacetic acid (2,4-D)
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CAVALLIERI, Gabriela Vidotto, Rossi, Renata Calciolari, Pereira, Danillo Roberto, Rodrigues, Marcus Vinicius Pimenta, and Padulla, Susimary Aparecida Trevizan
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Contagem de Células Sanguíneas ,Nasal Mucosa ,Toxicity ,CIENCIAS DA SAUDE ,Mucosa Nasal ,Toxicidade ,Ratos ,Blood Cell Count ,Rats - Abstract
Submitted by Jakeline Ortega (jakortega@unoeste.br) on 2020-01-13T14:28:40Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Gabriela Vidotto Cavallieri.pdf: 1241404 bytes, checksum: 800c2de0fdf9c5641ae7b2fc7fe0fbdf (MD5) Made available in DSpace on 2020-01-13T14:28:40Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Gabriela Vidotto Cavallieri.pdf: 1241404 bytes, checksum: 800c2de0fdf9c5641ae7b2fc7fe0fbdf (MD5) Previous issue date: 2019-02-22 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES One of the most used means for the application of pesticides is aerial spraying, despite the already known risks that this technique can bring, mainly due to the existence of technical drift. Agricultural pesticides can cause acute, subacute and chronic intoxications. The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) is one of the first herbicides formulated and one of the most used to date, in the control of several weed plants, in cereal plantations, sugarcane plantations, forest control and orchards. The objective of the study was to evaluate nasopharyngeal epithelium and the hematological profile of rats submitted to chronic spraying of 2,4-D herbicide. Fourty male Wistar rats were divided into four groups: Control Group (GC), Low Concentration Group (GBC), Medium Concentration Group (GMC) and High Concentration Group (GAC). The animals were exposed from Monday to Friday, through 2 boxes attached to nebulizers, one box for the control group and the other for groups exposed to 2,4-D, which were responsible for spraying the different concentrations of herbicide for a period of 15 minutes daily for 6 consecutive months. After the exposure period, the blood sample was collected for the hemogram and the nasal epithelium was collected and analyzed by quantification of the mast cells and inflammatory infiltrate. It was observed that there was a statistically significant difference only in the haematological parameter Average Corpuscular Hemoglobin Concentration (CHCM) of the GBC when compared to the GC, but the GBC was with CHCM values within the reference values and the GC was high. Regarding the other hematological parameters, quantification of the mast cells and the inflammatory infiltrate, there was no statistically significant difference of any group exposed to the 2,4-D herbicide compared to the CG. Therefore, 2,4-D herbicide did not demonstrate toxicity to the haematological parameters and nasal epithelium of Wistar rats after chronic inhalation exposure in the 6-month period, compared to the control group, in agreement with the toxicological classification of the herbicide published Agency of Environmental Protection of the United States (EPA). It should be noted that the toxic effects need to be evaluated with research in longer periods of time than the present study. Um dos meios mais utilizados para a aplicação dos defensivos agrícolas é a pulverização aérea, apesar dos riscos já conhecidos que essa técnica pode trazer, sobretudo devido à existência da deriva técnica. Os defensivos agrícolas podem causar intoxicações agudas, subagudas e crônicas. O herbicida Ácido 2,4-diclorofenoxiacético (2,4-D), é um dos primeiros herbicidas formulados e um dos mais utilizados até hoje, no controle de várias plantas infestantes, em plantações de cereais, cana-de-açúcar, controle florestal e pomares. O objetivo do estudo foi avaliar histopatologicamente o epitélio nasal e o perfil hematológico de ratos submetidos à pulverização crônica do herbicida 2,4-D. Foram utilizados 40 ratos Wistar adultos machos, divididos em 4 grupos, sendo eles: Grupo Controle (GC), Grupo Baixa Concentração (GBC), Grupo Média Concentração (GMC) e Grupo Alta concentração (GAC). A exposição dos animais foi realizada de segunda a sexta, por meio de 2 caixas acopladas a nebulizadores, sendo uma caixa destinada ao grupo controle e a outra aos grupos expostos ao 2,4-D, os quais eram responsáveis por pulverizar as diferentes concentrações do herbicida por um tempo de 15 minutos diários, durante 6 meses consecutivos. Após o período de exposição, foi feita a coleta de amostra de sangue para confecção do hemograma e coleta e análise do epitélio nasal por meio da quantificação dos mastócitos e infiltrado inflamatório. Foi observado que houve diferença estatisticamente significativa apenas no parâmetro hematológico Concentração de Hemoglobina Corpuscular Média (CHCM) do GBC quando comparado ao GC, porém o GBC estava com valores de CHCM dentro dos valores de referência e o GC estava elevado. Em relação aos outros parâmetros hematológicos, a quantificação dos mastócitos e do infiltrado inflamatório, não houve diferença estatisticamente significativa de nenhum grupo exposto ao herbicida 2,4-D comparados ao GC. Sendo assim, o herbicida 2,4-D não demonstrou toxicidade aos parâmetros hematológicos e epitélio nasal de ratos Wistar após exposição crônica inalatória no período de 6 meses, comparados ao grupo controle, em concordância com a classificação toxicológica do herbicida publicada Agencia de Proteção Ambiental dos Estados Unidos (EPA). Cabe ressaltar que os efeitos tóxicos precisam ser avaliados com pesquisas em períodos de tempo maiores ao realizado pelo presente trabalho.
- Published
- 2019
39. Uso do enxerto de mucosa nasal em timpanoplastia
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COELHO, Sandro Barros and CALDAS NETO, Sílvio da Silva
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Ensaio clínico ,Mucosa nasal ,Timpanoplastia ,Procedimentos cirúrgicos endoscópicos - Abstract
A timpanoplastia é uma cirurgia consagrada para o tratamento das perfurações timpânicas. Diversos enxertos já foram estudados e, atualmente, a fáscia do músculo temporal e a cartilagem do tragussão os mais utilizados. A mucosa nasal é uma alternativa interessante de enxerto, porém há poucos estudos publicados evidenciando a sua segurança e efetividade. Neste ensaio clínico randomizado controlado, avaliamos os resultados cirúrgicos e audiológicos do uso de mucosa nasal como enxerto, em comparação com o uso da fáscia, em dois grupos de 20 pacientes cada. O sucesso cirúrgico foi de 85% para os dois enxertos e a média do ganho auditivo de 11,9 dB para o grupo Mucosa e de 11,1 dB para o grupo Fáscia, não havendo diferença estatisticamente significativa entre os grupos estudados. Não houve casos de complicações, em nenhum dos grupos. A mucosa nasal se mostrou uma boa alternativa de enxerto para uso em timpanoplastia. É necessária a realização de mais estudos para que a mucosa nasal alcance níveis de evidência científica semelhantes ao da fáscia ou da cartilagem. Tympanoplasty is a gold standard treatment for drum perforations. Many different grafts were studied being temporalis fascia and cartilage the more routinely used nowadays. Nasal mucosa is an interesting alternative graft, but there are few papers showing its safety and effectiveness. In this controlled randomized clinical trial, we compared surgical and audiological results of nasal mucosa graft versus temporalis fascia, in 40 patients that underwent tympanoplasty, divided in 2 groups of 20 patients for each graft. Both groups had 85% of surgical success and mean audiological gain was 11,9 dB for nasal mucosa and 11,1 dB for temporalis fascia, with no statistical significant difference between groups. No complications happened in anygroups. Nasal mucosa is a good alternative graft for tympanoplasty. Further studies are necessary for nasal mucosa to achieve levels of evidence similar as temporalis fascia and cartilage grafts.
- Published
- 2019
40. Rhinologic headache caused by mucosal contact with a surgical solution. A case report
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Ignacio ALCALÁ-RUEDA, José Miguel VILLACAMPA-AUBÁ, Álvaro SÁNCHEZ-BARRUECO, and Carlos José CENJOR-ESPAÑOL
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cefaleas secundarias ,dolor facial ,tabique nasal, sinusitis ,lcsh:Otorhinolaryngology ,enfermedades nasales ,lcsh:RF1-547 ,mucosa nasal - Abstract
Introduction and objective: Rhinologic headache caused by mucosal contact is a difficult definition condition with good response to surgical approach. Description: We present a case of a 31 year-old male with rhinologic headache criteria. We decided to offer a surgical approach, successfully. Discussion: Rhinologic headache is included in the group of “Headache caused by disorders of the nasal mucosa, turbinates or septum”. There is no agreement about its cause because the prevalence of mucosal nasal contact is similar in patients with and without facial pain. There is evidence in the resolution of facial pain with a surgical approach. Conclusions: Despite the evidence of success in the surgical approach, some doubts still persist about the causes of this entity.
- Published
- 2016
41. Una técnica simple y segura para el tratamiento de las rinolicuorreas por pequeños defectos: colgajo libre de superposición «overlay» de mucosa nasal.
- Author
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Armengot, Miguel, Gómez-Gómez, M. José, and García-Lliberós, Ainhoa
- Abstract
Las fístulas de líquido cefalorraquídeo hacia las cavidades nasosinusales (rinolicuorreas) constituyen un proceso con dificultades diagnósticas y también terapéuticas. El abordaje transnasal endoscópico es el método de elección, pero con numerosas variantes posibles. El objeto de este trabajo es hacer una revisión crítica del protocolo diagnóstico y terapéutico que nosotros aplicamos desde hace 11 años. Treinta y un pacientes intervenidos. El diagnóstico se fundamenta en el análisis bioquímico de la rinorrea, la TAC y la RNM. Tratamiento: se realiza mediante cirugía endoscópica tras la inyección intratecal preoperatoria de 2 cc de fluoresceína al 5%. El cierre se efectúa mediante un injerto libre de mucosa de cornete medio superpuesta, «overlay». Dos pacientes presentaron meningitis como primer signo. En todos los pacientes se diagnosticó la rinolicuorrea mediante el análisis bioquímico del moco. La TAC y la RNM dieron indicios claros para la localización del punto de fuga. El defecto basicraneal fue siempre menor de 1 cm. La fluoresceína permitió visualizar la zona fistulosa sin necesidad de otros instrumentos y no tuvo efectos secundarios. Un paciente sufrió un absceso frontal en el postoperatorio que evolucionó favorablemente. Todas las fístulas se cerraron y solo hubo una recidiva a los 10 años que empezó como una meningitis neumocócica. Nuestro protocolo quirúrgico, fundamentado en el uso de fluoresceína intratecal y la colocación de un injerto libre de mucosa nasal sobrepuesto —«overlay»— sobre la zona fistulosa consigue resultados muy satisfactorios a largo plazo para el tratamiento de las rinolicuorreas por pequeños defectos basicraneales. Cerebrospinal fluid leaks to the sinonasal cavities (rhinoliquorrhoea) represent a process with diagnostic and therapeutic difficulties. The endoscopic transnasal approach is the method of choice, but with many possible variants. The purpose of this paper was to make a critical review of our diagnostic and therapeutic protocol used for 11 years. We operated on 31 patients. The diagnosis was based on the biochemical analysis of rhinorrhoea, CT and MRI. Treatment: endoscopic nasal surgery after preoperative intrathecal injection of 5% fluorescein (2 cc). Closure was performed using a free overlay graft from middle turbinate mucosa. Two patients had meningitis as the first sign. All patients were diagnosed by biochemical analysis of rhinorrhoea. CT and MRI gave clear evidence of the leakage location. The skull base defect was always less than 1 cm. Fluorescein allowed clear visualisation of the fistulous area without other instruments and produced no side effects. One patient had a postoperative frontal abscess, which evolved favourably. All fistulas were closed and there was only one recurrence at 10 years, which debuted as pneumococcal meningitis. Our surgical protocol, based on the use of intrathecal fluorescein and free grafting of middle turbinate mucosa overlay onto the fistulous area, achieves successful long-term results in the management of rhinoliquorrhoea secondary to small skull base defects. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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42. Mucosa nasal y determinación de alteraciones, citopatológicas por exposición al cemento
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Alvarado Álvarez, Alexandra M., Patiño Zambrano, Viviana P., Balladares Mazzini, Manuel, Patiño Zambrano, Walter A., Alvarado Álvarez, Alexandra M., Patiño Zambrano, Viviana P., Balladares Mazzini, Manuel, and Patiño Zambrano, Walter A.
- Abstract
La enfermedad pulmonar constituye uno de los principales problemas de América latina y el mundo, se realizó este trabajo con el objetivo de obtener mayor información sobre los agentes contaminantes del medio ambiente entre ellos el cemento en nuestro país, no existen datos precisos sobre los factores de riesgo. En Guayaquil los trabajadores de la construcción se encuentran más expuestos debido al aumento de las construcciones por la regeneración. Esta investigación se fundamenta en contenidos relevantes, tales como el marco teórico, 4y el diseño de protocolo que permitirá tener una idea clara sobre cómo se puede realizar el estudio ctoipatologico de la mucosa nasal. Donde se han observado cambios inflamatorios, cambios adaptativos como es la metaplasia y cambios típicos y atípicos. La importancia de esta patología que se presenta en los trabajadores de la construcciones ha determinado por el mayor tiempo de exposición al agente agresor que es el cemento. Tomando en consideración que las lesiones premalignas y malignas es una enfermedad que se puede presentar asintomática ocurriendo en los pacientes que tienen más años en exposición, aquí también influye el tabaquismo. Con este trabajo se trata de proporcionar mayor información sobre el cuidado que deben tener los trabajadores de la construcción ante este agente agresor utilizando medios de protección como son mascarillas, guantes cascos y uniformes.
- Published
- 2017
43. Análisis al microscopio electrónico de la mucosa nasal de pacientes ex-adictos a la cocaína
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Moreira Carmona, Lisela, Guevara Arroyo, Ana V., and Arroyo Gutiérrez, Olga
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drogadicción ,microscopia electrónica ,ultraestructura ,Cocaína ,mucosa nasal - Abstract
Normal and pathological human nasal mucous biopsies were used and obtained surgically. Pathological one were taken from cocaine adicted patients who had been using this drug during many years mainly by snorting via. From the clinical point of view all patients presented similar symptoms among which the most common were acute and chronic rhinitis, sneeze and bleeding. All cases include showed evident tissue desorganization that ultrastructurally present parcial or total lost of cillia as well as disruption between epithelia and basal lamina. Although, normal tissue was substituited by abundant fibrous tissue explaining why this tissue lost its normal function. All described alterations were analized by transmission electron microscope and scanning electron microscope. Se analizaron biopsias obtenidas quirúrgicamente de mucosa nasal humana normal y de pacientes que fueron adictos durante su adolescencia a la cocaína, quienes la emplearon durante varios años principalmente por inhalación. Desde el punto de vista clínico, estos pacientes presentaron síntomas comunes entre los que destacan rinitis aguda o crónica, estornudos y sangrado. Todos los casos incluidos presentaron una evidente desorganización tisular, que ultraestructuralmente se traduce en pérdida parcial o total del estrato ciliar, así como, la continuidad de este epitelio con la lámina basal en la que normalmente se asienta, observándose un desprendimiento o ruptura entre estos dos estratos. Además, ocurre una sustitución notable de tejido normal por abundante tejido fibroso, lo que explica la disfunción que se genera en el área.
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- 2017
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44. Análise do tropismo de Leishmania braziliensis para a mucosa nasal antes e longo período após o tratamento da leishmaniose cutânea localizada
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Azevedo, Amanda Canário Andrade, Boaventura, Viviane, Barral, Aldina, Jesus, Amélia Maria Ribeiro de, and Santos, Washington Luis Conrado dos
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Leishmaniasis, Mucocutaneous ,Nasal Mucosa ,Leishmaniose mucocutânea ,Mucosa nasal ,Reação em cadeia de polimerase ,Polymerase Chain Reaction ,Leishmania braziliensis - Abstract
Submitted by Flávia Ferreira (flaviaccf@yahoo.com.br) on 2019-05-17T14:42:43Z No. of bitstreams: 1 Dissert ICS Amanda Canário Andrade Azevedo.pdf: 6076722 bytes, checksum: 2ae538b38b123997631bdc3c5eb70f27 (MD5) Made available in DSpace on 2019-05-17T14:42:43Z (GMT). No. of bitstreams: 1 Dissert ICS Amanda Canário Andrade Azevedo.pdf: 6076722 bytes, checksum: 2ae538b38b123997631bdc3c5eb70f27 (MD5) INTRODUÇÃO: Leishmania sp. pode estar presente na mucosa nasal na leishmaniose cutânea localizada (LCL) aguda, com redução logo após o tratamento. No entanto, permanece desconhecido se a redução na persistência do parasita e lesão mucosa podem ser reduzidos longo período após tratamento adequado. OBJETIVO: Comparar a frequência de detecção de Leishmania em mucosa nasal de pacientes com LCL aguda e com passado de LCL tratada. MATERIAIS E MÉTODOS: Estudo de corte transversal com avaliação otorrinolaringológica de grupo com LCL aguda (LCLA), antes de tratamento, com 157 indivíduos, e grupo com passado de LCL tratada (LCLP), com 333 indivíduos. Pacientes do grupo LCLP foram tratados com droga leishmanicida, com cura clínica registrada em prontuário por infectologista. Amostras de swab nasal foram coletadas de todos os pacientes e feito PCR. Biópsia nasal foi realizada naqueles com lesão mucosa suspeita. RESULTADOS: No grupo LCLA houve positividade de 7,6% no PCR das amostras de swab nasal, enquanto no grupo LCLP foi de 0,9% (p=0,001), após mediana de 5 anos desde o episódio passado de LCL com tratamento e cicatrização completa da úlcera cutânea. Pacientes com PCR positivo no grupo LCLA precisaram de mais ciclos de Glucantime® para alcançar cura clínica quando comparados àqueles com PCR negativo no mesmo grupo (p
- Published
- 2017
45. A influencia da administracao de estradiol nos receptores de estrogeno da mucosa nasal: estudo experimental em cobaias
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Costa,Henrique Olival, Castro Neto,Ney Penteado de, Rossi,Lia Mara, Millas,Ieda, Coelho,Flavia, and Silva,Leonardo da
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Estrogênios ,Mucosa nasal ,Imunoistoquímica ,Imunoistoquimica ,lcsh:Otorhinolaryngology ,Estrogenios ,lcsh:RF1-547 - Abstract
Introdução: A literatura indica uma correlação entre estrogênio elevado no soro e sintomas nasais ou alterações inflamatórias na mucosa nasal. Os receptores de estrogênio tendem a ser controlados por retroalimentação negativa, para evitar um estímulo nocivo sobre as diversas funções corporais em períodos de hiperestrogenismo. Propomos uma hipótese em que os mecanismos que regulam a expressão de receptores de estradiol na mucosa nasal estão ausentes em alguns pacientes, e a sua concentração permanece estável mesmo em períodos de elevada concentração sérica hormonal, o que pode conduzir a sintomas locais na mucosa nasal. Desenho do estudo: Estudo prospectivo experimental. Objetivo: Determinar se altos níveis de estrogênio induzem à redução no número de receptores de estrogênio na mucosa nasal. Material e método: Trinta cobaias foram submetidas à biópsia da concha nasal, recebendo 0,5 ml de cipionato de estradiol por via intraperitoneal por trinta dias consecutivos. Em seguida foram obtidas amostras da concha nasal contralateral. As análises imuno-histoquímicas dos receptores de estrógeno foram realizadas antes e depois da hormonioterapia. Resultados: O grupo pós-tratamento mostrou uma redução da expressão dos receptores (p = 5,2726-5). Conclusão: Redução na expressão do receptor de estrogênio nasal foi encontrada após trinta dias de administração de estradiol.
- Published
- 2014
46. Prevalencia de portación nasal de Staphylococcus aureus en niños con discapacidad
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Clotilde Molin, Elvira del Valle Ortíz, Patricia Barrios Lezcano, Sonia Hermosa Sánchez, María González Santander, Sara Ayala Noguera, María Sánchez Duarte, and Lidia Cantero Almeida
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Staphylococcus aureus ,lcsh:R5-920 ,nasal mucosa ,disabled children ,lcsh:R ,mucosa nasal ,niños con discapacidad ,lcsh:Medicine ,lcsh:Medicine (General) - Abstract
Introduction: Colonization of the nasal mucosa by Staphylococcus aureus set a carrier state. Which is recognized as a potential source of infection and a high risk factor for subsequent invasive infections. The prevalence of nasal carriage of this germ in disabled children in Paraguay is not known, thus contributing to the knowledge of their frequency and evaluate the profile of sensitivity to common antimicrobials was conducted this study, from May to July 2015. Objective: to determine the prevalence of Staphylococcus aureus nasal carriage and profile of antimicrobial resistance in disabled children. Materials and Methods: A descriptive cross-sectional study in which 80 nasal swabs of children, who attended the service laboratory of SENADIS (Secretaria Nacional por los Derechos Humanos de las Personas con Discapacidad). The identification and sensitivity of germ was accomplished by conventional testing. Results: 80 pediatric patients, 46 boys and 34 girls. 18 isolates of Staphylococcus aureus were obtained, corresponding to a prevalence of 22,5%. Susceptibility testing indicated that 14 strains were MSSA (Methicillin – Sensitive Staphylococcus aureus) and 4 RMSA ( Methicillin- resistant Staphylococcus aureus). Conclusion: The prevalence of Staphylococcus aureus in a population with its own characteristics provides valuable data for the epidemiology, reflecting the need for continued vigilance and take steps to reduce associated infections. The detection of RMAR evidences their progress; it is important to evaluate the empirical treatment to primary care., Introducción: La colonización de la mucosa nasal por Staphylococcus aureus establece un estado de portador. El cual es reconocido como una fuente potencial de infección y factor de riesgo para subsecuentes infecciones invasivas. No se conoce la prevalencia de la portación nasal de Staphylococcus aureus en niños con discapacidad en Paraguay, por ello para contribuir al conocimiento de su frecuencia y evaluar el perfil de sensibilidad a los antimicrobianos más comunes se llevó a cabo este estudio, entre mayo a julio 2015. Objetivo: Determinar la prevalencia de portación nasal de Staphylococcus aureus y su perfil de resistencia antimicrobiana, en niños con discapacidad. Materiales y Métodos: Estudio transversal, descriptivo en la que se obtuvieron 80 hisopados nasales de niños, que acudieron al laboratorio de SENADIS (Secretaria Nacional por los Derechos Humanos de las Personas con Discapacidad). La identificación y sensibilidad del germen se realizó por medio de pruebas convencionales. Resultados: De 80 pacientes, 46 eran varones y 34 niñas. Se obtuvieron 18 aislamientos de Staphylococcus aureus, equivalente a una prevalencia de 22,5 %. 14 resultaron ser SASM (Staphylococcus aureus meticilino sensible) y 4 SARM (Staphylococcus aureus meticilino resistente). Conclusión: La prevalencia de Staphylococcus aureus en una población con características propias aporta datos valiosos para la epidemiologia, reflejando la necesidad de una continua vigilancia, y tomar medidas para disminuir infecciones asociadas. La detección de SARM evidencia su avance a la comunidad, esto resulta importante para evaluar el tratamiento empírico en la atención primaria.
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- 2016
47. Cefalea rinógena por contacto mucoso con solución quirúrgica. Descripción de un caso
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Carlos José Cenjor-Español, Álvaro Sánchez-Barrueco, José Miguel Villacampa-Aubá, Ignacio Alcalá-Rueda, UAM. Departamento de Cirugía, and Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD)
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medicine.medical_specialty ,sordera ,Dolor facial ,Medicina ,ENT ,Energy Engineering and Power Technology ,Mucous membrane of nose ,Management Science and Operations Research ,Enfermedades nasales ,nariz ,Audiology and otology ,deafness ,medicine ,In patient ,Facial pain ,garganta ,Sinusitis ,Otorrinolaringología ,Surgical approach ,Mucosa nasal ,business.industry ,Mechanical Engineering ,Turbinates ,Audiología y otología ,Tabique nasal ,Surgery ,Otorhinolaryngology ,oídos ,Cefaleas secundarias ,business - Abstract
Introduction and objective: Rhinologic headache caused by mucosal contact is a difficult definition condition with good response to surgical approach. Description: We present a case of a 31 year-old male with rhinologic headache criteria. We decided to offer a surgical approach, successfully. Discussion: Rhinologic headache is included in the group of “Headache caused by disorders of the nasal mucosa, turbinates or septum”. There is no agreement about its cause because the prevalence of mucosal nasal contact is similar in patients with and without facial pain. There is evidence in the resolution of facial pain with a surgical approach. Conclusions: Despite the evidence of success in the surgical approach, some doubts still persist about the causes of this entity., Introducción y objetivo: La cefalea rinógena por contacto mucoso nasal es un cuadro de difícil definición con buenos resultados quirúrgicos. Descripción: Presentamos el caso de un varón de 31 años con criterios de cefalea rinógena. Decidimos manejo quirúrgico. Discusión: La cefalea rinógena se encuentra dentro del grupo de «cefaleas ocasionadas por alteraciones en la mucosa nasal, cornetes o tabique nasal». No existe acuerdo en cuanto a su etiopatogenia por igual proporción de contacto mucoso nasal en pacientes con y sin dolor facial. Sin embargo se ha evidenciado resolución del dolor con tratamiento quirúrgico. Conclusiones: Pese a la existencia de mejoría con tratamiento quirúrgico, todavía quedan dudas en cuanto a las causas de esta entidad.
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- 2016
48. Nuclear alterations in nasal mucosa epithelial cells of students exposed to formaldehyde
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Cleres Penido Pinheiro, Leon, Moraes Serpa Nascimento, Haniel, Sartorio Menegardo, Cristiani, Gerhardt Silva, Ronara, Coelho Lorenzoni, Diego, and Nogueira da Gama de Souza, Leticia
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nasal mucosa ,mutagens ,mutágenos ,formaldehyde ,carcinógenos ,formaldehído ,carcinogens ,mucosa nasal - Abstract
Introduction: Formaldehyde is a compound with a wide range and is commonly used in anatomy and pathology laboratories. At room temperature is quickly volatilized to a pungent and suffocating gas and its inhalation has been correlated to nuclear alterations in different tissues. We aimed to investigate whether exposure to this compound was correlated with the appearance of cytotoxic and genotoxic features in the nasal epithelial cells of students enrolled in a human anatomy course. Material and Methods: This prospective study collected periodically nasal cells from mucosa of 17 volunteers from two different undergraduate programs with different workloads of practical lessons in an anatomy laboratory, 30 and 90 hours per semester. Cells were staining according to Feulgen method and nuclear morphology was analyzed to detect possible damage. Dunn's post hoc test was used in the statistical analysis. Pearson's correlation was performed for gender, age and questionnaire responses. Results: Epithelial cells showed indicators of cytotoxicity and mutagenicity. Students with a more extensive workload in anatomy laboratory displayed a more severe profile with an increase in karyorrhexis (p < 0.05) over time. The micronucleus analysis showed difference between first and second collection (p < 0.01), although it was not maintained over the time. Students with a less extensive workload display no differences in most of cytological features. Despite karyorrhexis was present in a greater number of cells, for this group no significant difference was observed between any range. The same was observed to karyolysis and micronucleus (p > 0.05). Conclusion: Individuals exposed for short periods of time to formaldehyde are subject to the toxic action of this gas. Karyorrhexis was the most frequently observed cytotoxic feature and micronucleus showed an increase between the first time point. The patterns observed between the student's groups suggest a negative effect due to exposure time. Introducción: El formaldehído es un compuesto con una amplia variedad y se utiliza comúnmente en los laboratorios de anatomía y patología. En la temperatura ambiente se volatiliza rápidamente en un gas acre sofocante. Su inhalación se ha correlacionado con la aparición de alteraciones nucleares en diferentes tejidos. El objetivo fue investigar si la exposición a este compuesto podría estar relacionado con la aparición de aspectos citotóxicos y genotóxicos en las células epiteliales nasales de los estudiantes del curso de anatomía humana. Material y métodos: En este estudio las células nasales proclives se recogieron periódicamente de la mucosa de los 17 voluntarios de las carreras universitarias con diferentes cargas de clases prácticas en el laboratorio de anatomía, 30 y 90 horas semestrales. Las células fueron teñidas por el método de Feulgen y la morfología nuclear fue evaluada para la detección de posibles daños. Prueba post hoc de Dunn fue utilizada para el análisis estadístico. Correlación de Pearson fue realizada con los datos de sexo, edad y las respuestas del cuestionario. Resultados: Las células epiteliales mostraron indicadores de citotoxicidad, mutagenicidad. Los estudiantes con una carga de trabajo más extensa en el laboratorio de anatomía mostraron perfil más grave con el aumento de cariorrexis (p < 0,05) en el tiempo. El análisis de micronúcleos mostró una diferencia entre la primera y segunda prueba (p < 0,01), pero no se mantiene en el tiempo. Los estudiantes con una menor carga de trabajo no presentaron diferencias en aspectos citológicas. Aunque cariorrexis estaba presente en un gran número de células, para este grupo no hubo diferencia significativa entre los intervalos de tiempo. Lo mismo se observó para cariolisis y micronúcleos (p > 0,05). Conclusión: Individuos expuestos durante cortos períodos de tiempo a formaldehído están sujetos a la acción tóxica de gas. Cariorrexis fue la característica citotóxica observada con mayor frecuencia y micronúcleos mostraron un aumento entre el primer punto de tiempo. Los diferentes patrones de daños observados entre los grupos de estudiantes sugieren que el efecto negativo de gas puede está relacionado con el tiempo de exposición.
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- 2016
49. Effects of Polymeric Zinc Propylen-Bis-Dithiocarbamate (Propineb) on Nasal Mucosa in Rats
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Samanci, Baver, Arslan, Eda, Samanci, Seyla Bolukbasi, Caypinar, Basak, Deveci, Engin, Söker, Sevda, and Seker, Ugur
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Mucosa nasal ,Antígeno nuclear de proliferación celular (PCNA) ,Propineb ,Proliferating Cell Nuclear Antigen (PCNA) ,CD34 ,Nasal mucosa - Abstract
The objective of this study was to evaluate the histopathologic and immunohistochemical effects of propineb on rat nasal mucosa. Twenty adult Sprague-Dawley rats weighing 180220 g, were used as experimental animals. The rats were divided into propineb and control groups. The control group received distilled water with spray at the same time period. The experiment was terminated after three weeks. In each case, sections of the nosewere taken. In experimental group, microscopic examination of nasal respiratory mucosa revealed that degenerative changes in epithelium were observed in sections of propineb-treated group. There were also leukocyte infiltration and vascular dilatation detected in the connective tissue.We detected CD34-immunoreactive mononuclear cells and endothel cells in the lamina propria of propineb group. In propineb group compared to the control group, the respiratory epithelium, goblet and basal cell nuclei were stained positive for PCNA. Propineb inhalation may be irritating to the nasal mucosa. El objetivo de este estudio fue evaluar los efecto histopatológicos e inmunohistoquímicos del Propineb en la mucosa nasal de 20 ratas Sprague-Dawley adultas con un peso de 180-220 g, las que fueron utilizadas como animales de experimentación. Las ratas se dividieron en grupos Propineb y Control. El grupo control recibió agua destilada en aerosol nasal en el mismo período de tiempo que el grupo Propineb. El experimento duró tres semanas. Posteriormente, en cada caso se tomaron muestras de la mucosa nasal. En el grupo experimental, tratado con Propineb, el examen microscópico de la mucosa respiratoria nasal reveló cambios degenerativos en el epitelio. Se detectó también infiltración de leucocitos y dilatación vascular en el tejido conectivo, junto con células mononucleares CD34 inmunorreactiva y células endoteliales en la lámina propia. En el grupo Propineb, en comparación con el grupo control, los núcleos de la porción respiratoria, las células caliciformes y basales resultaron positivas a la tinción del antígeno nuclear de proliferación celular (PCNA). La inhalación de Propineb puede ser un irritante para la mucosa nasal.
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- 2016
50. Incidencia de las lesiones de la mucosa nasal, por exposición al cromo en el área de cromado de la Empresa Crobet
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Jiménez Espinoza, Alfredo Vicente and Zambrano Mendoza, Augencio Jesús
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EXPOSICIÓN A CROMO ,PREVENCIÓN EN EL TRABAJO ,SEGURIDAD, HIGIENE INDUSTRIAL Y SALUD OCUPACIONAL ,MUCOSA NASAL - Abstract
Este documento contiene archivo en PDF. El objetivo de este trabajo es identificar lesiones en la mucosa nasal en los trabajadores que realizan la actividad de cromado industrial, según el tiempo de exposición al cromo, en el área de cromado en la empresa Crobet, fomentando una cultura de prevención en el trabajo para que se implementen medidas de control sobre los riesgos laborales, porque estudios realizados nos dan a conocer que el cromo presente en el ambiente laboral, originaria enfermedades en las personas expuestas. La técnica de investigación aplicada para este trabajo es la metodología de la investigación cualitativa, se recogerá información realizando encuestas a los trabajadores de la empresa Crobet sobre el proceso de cromado, capacitación, estudios médicos realizados, medidas preventivas y efectos sobre la salud del cromo desde la óptica de los trabajadores. Los resultados encontrados en esta investigación es que en este proceso de cromado de las piezas metálicas el riesgo químico se encuentra presente, por lo tanto el cromo presente en la actividad del cromado produce lesiones en la mucosa nasal de los trabajadores expuestos, por lo consiguiente se recomienda la implementación de un plan mínimo de prevención de riesgos laborales. The main objective of this work is to identify injuries in the nasal mucous membrane of the workers, who perform industrial activities with chrome, according to the time of exposure to the chromium in the area of chrome of Crobet’s company, increasing a culture of prevention in the work and implementing control measures on occupational hazards, the studies carried out showed that the chromium present in the workplace, will originate illness in people exposed to it. The Qualitative Research Methodology is the technique applied for this work; the information will be provided through surveys from employees Crobet’s company about the chrome plating process, training, medical studies, preventive measures and health effects of chromium from the viewpoint of the workers. In Conclusions, the results found in this research work is that in this process of chromed of the metal pieces, the chemical risk is present, therefore the chromeplated in the activity of the chromed produces injuries in the nasal mucous membrane of the workers exposed to chrome, consequently, we recommend the implementation of a minimum prevention program, including occupational hazards.
- Published
- 2016
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