Toxicology and applied pharmacology, 133(2), 277-284 (1995-08-01)
Despite their similarity in structure, pyrrolizidine alkaloids (PAs) vary in their LD50s and in the organs in which toxicity is expressed. We have examined whether there are differences in the metabolism of certain PAs that are associated with these quantitative
Journal of ethnopharmacology, 12(3), 271-278 (1984-12-01)
The effect of oral administration of the pyrrolizidine alkaloids, seneciphylline and senecionine, from Senecio vulgaris (Compositae) on activities of hepatic epoxide hydrase, glutathione-S-transferase, aminopyrine-N-demethylase and arylhydrocarbon hydroxylase (AHH) was investigated in microsomes of young male albino rats. Seneciphylline significantly increased
Drug metabolism and disposition: the biological fate of chemicals, 10(3), 236-240 (1982-05-01)
Two macrocyclic 14C-pyrrolizidine alkaloids (PA's), senecionine an seneciphylline, were studied regarding the distribution, excretion, transfer into milk, and covalent binding to hepatic macromolecules in BALB/c mice. After injection, radioactivity was rapidly excreted in the urine and feces (84% or greater)
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