Metabolism of prostaglandin A1 by hepatic microsomal monooxygenase P-450 system in the guinea pig and rat

David Kupfer, Javier Navarro

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


This study demonstrates the metabolic transformation of prostaglandin A1 (PGA1) by guinea pig and rat liver microsomes. The transformation, which required NADPH and oxygen, yielded polar (presumably hydroxylated) products. Incubations with guinea pig liver microsomes yielded one zone of product on tlc, whereas rat liver microsomes produced two discernable metabolic zones. It was demonstrated that PGA1 metabolism in the guinea pig and the rat was inhibited by the addition of SKF-525A, metyrapone, carbon monoxide and cytochrome C; nicotinamide (10 mM) inhibited only the guinea pig system. These findings indicate that the enzymatic activity responsible for PGA1 metabolism is composed of a typical cytochrome P-450 monooxygenase system.

Original languageEnglish (US)
Pages (from-to)507-513
Number of pages7
JournalLife Sciences
Issue number5
StatePublished - Mar 1 1976
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Pharmacology, Toxicology and Pharmaceutics(all)


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