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Momordica charantia L. (Cucurbitaceae) é empregada na medicina popular pelas diversas propriedades biológicas e farmacológicas. Neste trabalho, objetivou-se avaliar a atividade hepatoprotetora dos extratos hexânico (EH) e etanólico (EE) das folhas de M. charantia no modelo de lesão hepática aguda induzida pelo etanol. Em ambos os extratos foram detectados esteróides; EH apresentou atividade antioxidante mais marcante que EE. O pré-tratamento de camundongos (Swiss, machos) por via oral por três dias consecutivos com 25, 50 ou 100 mg Kg-1 de EH preveniu o aumento tanto de AST quanto de ALT (p<0,05) enquanto o pré-tratamento com EE preveniu apenas o aumento de ALT (p<0,05). Ambos os extratos reduziram a atividade das enzimas hepáticas, contudo EH apresentou efeito mais relevante, caracterizando potencial hepatoprotetor, possivelmente associado ao seu potencial antioxidante. Momordica charantia L. (Cucurbitaceae) has been used in folk medicine based on its several biological and pharmacological properties. The aim of this work was to evaluate the hepatoprotective activity of hexane (HE) and ethanol (EE) extracts from M. charantia leaves on the acute liver injury model induced by ethanol. Steroids were detected in both extracts, and EH had higher antioxidant activity than EE. Oral pretreatment of male Swiss mice for three consecutive days with 25, 50 or 100 mg kg-1 HE prevented the increase in AST and ALT (p<0.05), whereas pretreatment with EE only prevented ALT increase (p<0.05). Both extracts reduced the activity of hepatic enzymes; however, HE had a more relevant effect, characterizing hepatoprotective potential, likely associated with its antioxidant potential

Atividade hepatoprotetora dos extratos etanólico e hexânico das folhas de Momordica charantia