Efectos del Albendazol en el Hígado de Feto de Rata: Estudios Morfológico y Morfométrico

El objetivo del presente trabajo fue caracterizar morfologica, morfometrica y estereologicamente las alteraciones causadas por la administracion de albendazol en ratas prenadas en el higado de los fetos. Fueron usadas ratas Wistar, que recibieron entre los dias 9 y 11 de la prenez, una dosis diaria de 5 mg/kg de peso de albendazol. Las ratas control recibieron volumen semejante de suero fisiologico en los mismos dias. Al 20 dia, las ratas fueron sacrificadas por inhalacion de eter, siendo retirados los fetos e inmediatamente fijados en alfac por 24 h. Los fetos, uteros y placentas, luego de fijados, fueron secados en papel de filtro y pesados en balanza de precision, siendo medidos los cordones umbilicales con nonio. Los cuerpos de los fetos fueron seccionados longitudinalmente e incluidos en parafina. Los cortes seriados de 6 µm de espesor, fueron tenidos con hematoxilina y eosina. Ademas del examen histopatologico, fueron utilizadas tecnicas histometricas. Los resultados obtenidos, en las condiciones experimentales, sugieren que la exposicion prenatal al albendazol actua directamente en la embriogenesis, causando malformaciones como agenesia del rabo y fetos hidropicos. En los fetos sin malformaciones, la droga causo retardo del desarrollo fetal, caracterizado por reduccion de peso corporal, peso de la placenta y longitud del cordon umbilical, asi como alteraciones estructurales hepaticas, reflejadas en hepatocitos menores con nucleos menores y citoplasma mas escaso y aumento de la densidad numerica. Los megacariocitos eran mayores, con nucleos lobulados grandes, con mayor volumen relativo. Los sinusoides ocuparon un volumen relativo semejante en los fetos de los dos grupos estudiados. Los fetos tratados, ademas de las malformaciones, mostraron aspectos que sugieren inmadurez al ser comparados con los controles

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