Further identification of PGE1 metabolites formed in the cat lung

Abstract
Tritium-labeled compounds appearing in the venous effluent of isolated blood perfused cat lungs after infusion of [3H]prostaglandin E1 (PGE1) appear to be unchanged [3H]PGE1 and 13,14-dihydro-15-keto-PGE1. No 15-keto-PGE1 could be detected in the venous effluent.