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The current study was undertaken to evaluate the preclinical efficacy of methanolic extract of Tagetes erecta (METE) and methanolic extract of Tridax procumbens (METP) against Isoniazid and Rifampicin (INH-RIF) induced hepatic injury. Animals were randomly divided into seven groups, vehicle (control) or INH-RIF (50 mg/kg, i.p.), METE (200 and 400mg/kg, p.o.), METP (200 and 400mg/kg, p.o.) and standard silymarin for 28 days. INH-RIF intoxicated rats displayed significant (p<0.05) elevation in serum hepatic markers, lipid peroxidation and decrease in antioxidants like SOD, CAT, Gpx and GSH in liver tissue. Treatment with METE & METP (200 and 400 mg/kg, p.o.) restored the altered biochemical level to normalcy. Thus, the outcome of the study reveals that METE & METP showed promising hepatoprotective activity in INH-RIF induced hepatic damage mediated by its membrane stabilizing and antioxidant effect. All the methanolic plant extracts produce significant hepatoprotective activity against drug induced hepatic injury.
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