Perfusion of liver of rats toxicated with galactosamine or thioacetamide with a 0.02% solution of picroliv (glycoside fraction of Picrorhiza kurroa) for 30 min (1 ml/min; 6 mg/rat), significantly reversed toxicant-induced changes in the activities of several enzymes. Galactosamine induced increases in the activities of alkaline phosphatase, gamma-glutamyl transpeptidase, acid ribonuclease, acid phosphatase, succinate dehydrogenase and decreases in the activities of Na(+)-K(+)-adenosine triphosphatase (ATPase) and glucose-6-phosphatase (reversed by 40-87%). Similarly, thioacetamide-induced inhibitions of the activities of Na(+)-K(+)-ATPase, Ca(++)-ATPase, Mg(++)-ATPase, succinate dehydrogenase and elevations in the activities of alkaline phosphatase, gamma-glutamyl transpeptidase, and acid ribonuclease were also significantly reversed. A significant reversal of the toxicants-induced decrease in [14C]-leucine incorporation was also observed. These results indicate that picroliv can also reverse D-galactosamine- or thioacetamide-induced hepatic damage in rats.
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Dwivedi et al. (1993) studied this question.