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Rev. peru. med. exp. salud publica ; 23(1): 52-55, ene.-mar. 2006. graf
Artigo em Espanhol | LILACS, INS-PERU | ID: lil-477886

RESUMO

Objetivo: Evaluar la acción antiinflamatoria de la capsaicina en la producción del factor de necrosis tumoral de tipo alfa (TNF menos alfa) en células mononucleares de sangre periférica de rata (CMSP), previamente estimuladas con lipopolisacáridos (LPS). Materiales y métodos: Las CMSP provinieron de ratas hembras de la cepa Sprague-Dawley de 8-14 semanas, se obtuvieron por gradiente de centrifugación y se estimularon o no con LPS (100 ng/mL) por 24 h considerándolas como grupos control positivo y negativo de la producción de TNF menos alfa;, respectivamente. Dos horas antes de la estimulación con LPS otros grupos de CMSP fueron tratados con capsaicina (pureza mínima de 97 por ciento, SIGMA) a concentraciones de 0,01 µM; 0,1 µM y 1µM (grupos de evaluación). Los niveles de TN menos alfa; se determinaron por ELISA en el sobrenadante del cultivo celular. El análisis estadístico se realizó por ANOVA y prueba de Tukey para comparaciones múltiples. Resultados: Los niveles de TNF menos alfa; a las concentraciones de capsaicina de 0,01 µM y 0,1 µM no mostraron cambios significativos respecto al control positivo; sin embargo, a 1µM se produjo una disminución de 21,9 por ciento (p<0,05) de esta citokina. Conclusión: La capsaicina evidencia un efecto antiinflamatorio al disminuir los niveles de TNF menos alfa; una citokina pro inflamatoria en un modelo in vitro en cultivos celulares


Objective: Anti-inflammatory actions of capsaicine for the production of tumor necrosis factor-alpha (TNF-á) in lipopolysaccharide (LPPS)-stimulated mononuclear cells from peripheral blood of rats. Material and methods: The aforementioned cells were obtained from Sprague-Dawley female rats, 8 to 14 weeks old, they were obtained using a centrifugation gradient and some of them were stimulated with LPPS (100 ng/mL), and some were not, so they were classified as positive and negative control groups according to TNF-á production. Two hours before stimulation with LPPS, other groups of mononuclear cells from peripheral blood of rats were treated with capsaicine (minimal purity, 97, SIGMA) in 0,01 ìM, 0,1 ìM, and 1 ìM concentrations (groups for assessment). TNF-á levels were determined using an ELISA test in the supernatant of the cell culture. Statistical tests were performed using ANOVA and Tukey’s test for multiple comparisons. Results: TNF-á levels at 0,01 and 0,1 ìM capsaicine concentrations did not show significant changes with respect to positive controls; however, at 1 ìM there was a 21,9% reduction (p<0.05) in TNF-á levels. Conclusion: There is evidence showing that capsaicine exerts an anti-inflammatory effect when TNF-á levels are reduced, being the latter a pro-inflammatory cytokine in an in vitro model using cell cultures.


Assuntos
Anti-Inflamatórios , Capsaicina , Fator de Necrose Tumoral alfa , Ratos Sprague-Dawley
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