Hepatoprotective efficacy of methanolic extract of indigofera suffruticosa (Mill) on paracetamol-induced liver damage in mice

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Abstract

Background-Indigofera suffruticosa Mill (Fabaceae) is abundant in northeastern Brazil and popularly used in the treatment of infectious and inflammatory processes. Several biological properties, such as anti-inflammatory, anticancer, antitumor, hepatoprotective and low toxicity, are reported for this plant. Objective-This study investigated hepatoprotective activity and the antioxidant effect of methanolic extract of I. suffruticosa leaves (MEIS) on Swiss albino mice submitted to experimental models of acetaminophen-induced liver injury. Methods – MEIS (50 mg/kg; p.o.) was standardized according to the LD50 and its hepatoprotective property on Swiss albino mice evaluated during a 7-day period. On the eighth day, the acetaminophen-induced hepatic injury was performed. Histomorphometric analysis of liver tissue, antioxidant activity and serum levels of alanine aminotransferase (AST), aspartate aminotransferase (ALT) and bilirubin were measured. Results-MEIS (50 mg/kg; p.o.) restored serum enzyme levels and results were close to those of positive control (silymarin) when compared to the negative control. Histopathological and histomorphometric analyzes confirmed MEIS hepatoprotective activity, showing reorganization of structural units of cells, nuclei and sinusoidal capillaries of hepatocytes, reducing the damage on liver tissue and increasing organ regeneration rate. MEIS showed high antioxidant potential at concentrations of 1000 and 500 μg/mL. Conclusion-This study suggests that MEIS has hepatoprotective activity and high antioxidant potential.

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Lima, I. R., Silva, I. B., Lima, R. M. L., Silva, T. M. S., Maia, M. B. S., & Leite, S. P. (2019). Hepatoprotective efficacy of methanolic extract of indigofera suffruticosa (Mill) on paracetamol-induced liver damage in mice. Arquivos de Gastroenterologia, 56(4), 333–338. https://doi.org/10.1590/s0004-2803.201900000-62

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