Abstract
Picroliv, the active constituent isolated from the plant Picrorhiza kurroa, was evaluated as a hepatoprotective agent against ethanol-induced hepatic injury in rats. Alcohol feeding (3.75 g/kg×45 days) produced 20–114% alteration in selected serum (AST, ALT and ALP) and liver markers (lipid, glycogen and protein). Further, it reduced the viability (44–48%) of isolated hepatocytes (ex vivo) as assessed by Trypan blue exclusion and rate of oxygen uptake. Its effect was also seen on specific alcohol-metabolizing enzymes (aldehyde dehydrogenase, 41%; acetaldehyde dehydrogenase, 52%) in rat hepatocytes. The levels of these enzymes were found to be reduced in the cells following alcohol intoxication. Ethyl alcohol also produced cholestasis (41–53%), as indicated by reduction in bile volume, bile salts and bile acids. Picroliv treatment (3–12 mg/kg p.o.×45 days) restored the altered parameters in a dose-dependent manner (36–100%).
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