Evaluation of hepatoprotective activity of Colocasia esculenta (L. Schott) leaves on thioacetamide-induced hepatotoxicity in rats
Journal Title: Pakistan Journal of Pharmaceutical Sciences - Year 2015, Vol 28, Issue 6
Abstract
The hepatoprotective effect of orally administered leaf aqueous extract of Colocasia esculenta (CCLE) in thioacetamide-induced liver toxicity in rats was investigated in this study. Adult male Wistar rats (weight range: 120-150g) were divided into 5 groups (n=5) and received no treatment (normal control), distilled water (negative control), 50mg/kg silymarin (positive control) and CCLE (250 and 500mg/kg) respectively once daily for 3 consecutive days. Thioacetamide (TAA) (150mg/kg b.w.) was administered intraperitoneally on the 4th day to rats in all groups except the normal control. Evaluations were made for serum levels of alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphate (ALP) and serum albumin. Histopathological examination was performed on the excised liver tissues. TAA-induced hepatotoxicity increased ALT, AST, ALP and decreased serum albumin. Histopathological results revealed extensive disruption of the liver histoarchitecture when compared to the normal control liver sections. Pre-treatment with CCLE showed protective effects by normalizing the liver enzymes markers. These results were supported by the histopathological observations. The activity of the CCLE was comparable to that of the standard hepatoprotective drug, silymarin (50mg/kg). Overall findings suggest that CCLE possesses in vivo hepatoprotective activity against thioacetamide in rats.
Authors and Affiliations
Azubike Nkiruka Chinonyelum , Achukwu Peter Uwadiegwu , Okwuosa Chukwugozie Nwachukwu , Oduah Emmanuel
Keywords
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