ABSTRACT
Introducción: La Enfermedad Renal es un problema de salud mundial. El Factor de Crecimiento Epidérmico actúa como citoprotector y trófico reparador. Objetivo: Evaluar el efecto reno-protector y reno-reparador del Factor de Crecimiento Epidérmico en biomodelo de Insuficiencia Renal Crónica. Material y Métodos: Se estudiaron 120 ratas, Wistar, en 6 grupos: Control Negativo y positivo, Solución Salina Dosis Única y Múltiple, Factor de Crecimiento Epidérmico Dosis Única y Múltiple. Se aplicó para efecto reno-protector dosis única antes del daño, y para el reno-reparador dosis múltiples posterior al daño, a razón de 100 µg/kg de peso. Resultados: La creatinina, urea y ácido úrico disminuyeron significativamente en los grupos experimentales, con mayor disminución para el grupo experimental dosis única, por lo que el efecto reno-protector fue mayor que el reno-reparador para los esquemas de tratamiento utilizados. Conclusiones: El Factor de Crecimiento Epidérmico mostró efecto reno-protector y reno-reparador al disminuir las variables hematológicas de daño renal(AU)
Introduction: Kidney disease is a world health problem. Epidermic Growth Factor acts as cyto-protector, and trophic restorative. Objective: To assess the reno-protective and reno-restorative effect of the Epidermal Growth Factor in biomodel of Chronic Renal Failure. Material and Methods: 120 Wistar rats were studied in 6 groups: Negative and Positive Control, Saline Solution Single-Dose and Multiple-Dose, Epidermal Growth Factor Single-Dose and Multiple-Dose. A single dose was applied before the damage for the reno-protective effect, and multiple doses after the damage for the reno-restorative effect, at a rate of 100 µg/kg of weight. Results: Creatinine, urea, and uric acid diminished significantly in the experimental groups, with a higher decrease for experimental group with single dose; therefore, the reno-protective effect was higher than reno-restorative one for the treatment patterns used. Conclusions: Epidermal Growth Factor showed reno-protective and reno-restorative effect by diminishing the hematological variables in kidney damage(AU)
Subject(s)
Humans , Receptors, Growth Factor/therapeutic use , Renal Insufficiency, Chronic/therapy , Prospective Studies , Longitudinal Studies , Cytoprotection/immunology , Epidermal Growth Factor/therapeutic useABSTRACT
Integrative physiology studies have shown that immune system and central nervous system interplay very closely towards behavioural modulation. Since the 70-kDa heat shock proteins (HSP70s), whose heavy expression during exercise is well documented in the skeletal muscle and other tissues, is also extremely well conserved in nature during all evolutionary periods of species, it is conceivable that HSP70s might participate of physiologic responses such as fatigue induced by some types of physical exercise. In this way, increased circulating levels of extracellular HSP70 (eHSP70) could be envisaged as an immunomodulatory mechanism induced by exercise, besides other chemical messengers (e.g. cytokines) released during an exercise effort, that are able to binding a number of receptors in neural cells. Studies from this laboratory led us to believe that increased levels of eHSP70 in the plasma during exercise and the huge release of eHSP70 from lymphocytes during high-load exercise bouts may participate in the fatigue sensation, also acting as a danger signal from the immune system.