Toxicology and applied pharmacology, 117(1), 116-121 (1992-11-01)
Two carboxylesterases (GPL1 and GPH1) were isolated from guinea pig hepatic microsomes and assayed for activity using the following pyrrolizidine alkaloids (PAs): seneciphylline (SNP), monocrotaline (MCT), and a mixture of senecionine (SEN) and integerrimine (INT) referred to as SEN-INT. GPH1
An improved method utilizing reverse-phase liquid chromatography on a styrene-divinylbenzene column (PRP-1) and ultraviolet detection was developed for the simultaneous determination of the pyrrolizidine alkaloids (PAs) senecionine, seneciphylline, and retrorsine and their major metabolites produced during in vitro transformation of
The effects of individual pyrrolizidine alkaloids on the mixed-function oxidase (MFO) enzyme aminopyrine N-demethylase were determined in rat liver 10 000 X g supernatant. The pyrrolizidine alkaloids, senecionine, seneciphylline and retrorsine were obtained from Senecio vulgaris. Senecionine and seneciphylline were
DTW. Deutsche tierarztliche Wochenschrift, 104(3), 97-98 (1997-03-01)
Pyrrolizidine alkaloids (PAs) contamination of animal products, may pose a threat to human health. Among ruminants, sheep appear to be more resistant to PAs poisoning and consequently comparatively higher concentrations of the PAs into their milk might be expected. To
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