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Abstract
Introducción: La obesidad es uno de los mayores factores de riesgo para la resistencia a la insulina y la aparición de la diabetes tipo 2. Las proteínas Sirtruinas, entre ellas la Sirtruina 1 (Sirt 1), tiene la capacidad de inhibir la expresión de los genes controlados por el receptor nuclear PPAR? promoviendo la movilización de los ácidos grasos desde el adipocito y evitando su almacenamiento.Objetivo: El propósito de este trabajo es evaluar la capacidad del Resveratrol como agente lipolítico en células adiposas diferenciadas.Materiales y métodos: La adipogénesis se realizó mediante la incubación preadipocitos de ratón de la línea celular 3T3.-L1 en presencia de un cóctel de diferenciación con Rosiglitazona, Isobutil Xantina y Dexametasona, y se llevaron a cabo observaciones cada dos días en el período comprendido entre los 0 y 10 días. Posteriormente, se aplicaron dosis de Rosiglitazona y Resveratrol y se realizaron nuevas observaciones hasta el día 6 para corroborar el efecto del Resveratrol.Resultados y discusión: Los resultados obtenidos nos permitieron observar el efecto lipolítico del Resveratrol sobre las células adiposas dado que la cantidad de triglicéridos dentro de las mismas fue menor con respecto a las células diferenciadas y que no fueron tratadas con éste. Esto puede ser causado por la capacidad del Resveratrol de estimular la actividad de la Sirt 1 que a su vez provoca la inhibición del PPAR?.Conclusiones: Estos trabajos nos permitirán en el futuro desarrollar nuevas intervenciones en el tratamiento de la obesidad y sus complicaciones.Palabras clave: Resveratrol, Sirtruinas, Rosiglitazona, Adipocito, adipogénesis, obesidad, diabetes tipo 2.Introduction: The obesity it is one of the main risk factor for develop insulin resistance and type 2 diabetes, one component of calorie restriction in mammals it is given by Sirtuins proteins among them (SIRT 1), which have the capacity of inhibit the expression of the genes control by the nuclear receptor PPAR?, promoting the mobilization of the fatty acids from the adipocyte and avoiding their storage.Objective: The purpose of this work is to evaluate the capacity of Resveratrol (flavonoid found in grape skin) as a lipolytic agent on adipose cells differentiated by Rosiglitazone.Materials and methods: Fibroblast preadipocyte adipogenesis was carried out using Rosiglitazona, incubating murine 3T3-L1 cells in the presence of a differentiation cocktail of Rosiglitazone, Isobutil Xantine and Dexametasone, monitoring between days 0 to 10 of differentiation every two days. Subsequently doses of Resveratrol and Rosiglitazone were added to each cells culture and followed up until day 6, to make sure the Resveratrol effect. The triglycerides quantification was performed qualitatively by red oil stain and quantitatively by isopropanol extraction and absorbance measurement at 510 nm.Results and analysis: The results allowed us to see the Resveratrol lipolytic effect on the adipocyte cells, because the amount of triglycerides was lower than the cultures differentiated by Rosiglitazone. This could be caused by the Resveratrol capacity of stimulate the SIRT 1 activity, which also inhibit PPAR?.Conclusions: This kind of work will help in develop new interventions in the treatment of the obesity and complications.Key words: Resveratrol, Sirtruins, Rosiglitazone, Adipocyte, Adipogenesis, Obesity, Diabetes type 2.
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