clivorine has been researched along with retrorsine* in 2 studies
2 other study(ies) available for clivorine and retrorsine
Article | Year |
---|---|
Pulmonary toxicity is a common phenomenon of toxic pyrrolizidine alkaloids.
Topics: Activation, Metabolic; Animals; Drug-Related Side Effects and Adverse Reactions; Drugs, Chinese Herbal; Liver; Lung; Monocrotaline; Proteins; Pyrroles; Pyrrolizidine Alkaloids; Rats | 2020 |
Microsomal formation of a pyrrolic alcohol glutathione conjugate of clivorine. Firm evidence for the formation of a pyrrolic metabolite of an otonecine-type pyrrolizidine alkaloid.
The formation of the pyrrolic alcohol glutathione (GSH) conjugates of two different types of pyrrolizidine alkaloids (PAs), i.e. clivorine (an otonecine-type PA) and retrorsine (a retronecine-type PA), was investigated with rat microsomes in the presence of GSH. Two GSH conjugates identified as metabolites of retrorsine were the pyrrolic alcohol conjugated with one [7-GSH-dehydroretronecine (DHP)] or two (7,9-diGSH-DHP) molecules of GSH. diGSH-DHP, the less abundant of the two conjugates, had not been previously identified as a metabolite of PAs. In the case of clivorine, 7-GSH-DHP was identified. This is the first unequivocal identification of a pyrrolic metabolite of an otonecine-type PA. Consequently, this study provides the strongest evidence obtained to date to support the hypothesis, suggested >25 years ago, that the mechanism of hepatotoxicity induced by otonecine-type PAs involves key metabolic steps similar to those for retronecine-type PAs. Topics: Alcohols; Animals; Chromatography, High Pressure Liquid; Glutathione; Male; Mass Spectrometry; Microsomes, Liver; Molecular Structure; Pyrroles; Pyrrolizidine Alkaloids; Rats; Rats, Sprague-Dawley | 1998 |