Metabolism of prostacyclin in rat
Citations Over TimeTop 10% of 1978 papers
Abstract
Following a single intravenous administration of [11-3H]prostacyclin in rat, 77% of the administered dose was excreted within 3 days with 33% in urine and 44% in feces. Urinary metabolites were accumulated by chronic intravenous infusions of [11-3H]prostacyclin for 14 days. The drug was extensively metabolized and the structures of seven metabolites were elucidated by combined gas chromatography and mass spectrometry. The urinary products include the dinor and 19-hydroxy dinor derivatives of 6-keto-PGF1alpha and 13,14-dihydro-6,15-diketo-PGF1alpha, omega-hydroxy and omega-carboxyl dinor derivates of dihydro-6,15-diketo-PGF1alpha, and a dihydrodiketotetranordicarboxylic acid. The metabolic pathways of PGI2 in rat are similar to that of PGF2alpha.
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