title: Identification of the major urinary metabolite of prostaglandin E3 in the rat.
abstract: [11,12-3H2]Prostaglandin E3 was administered subcutaneously into male Sprague-Dawley rats in doses of 0.4 microgram-10 mg/kg body weight. 40-60% of the administered radioactivity was excreted in the urine. The major metabolite was isolated by solid phase extraction followed by three steps of high-performance liquid chromatography. The structure of the major metabolite (5-11% of the administered radioactivity) was 7 alpha,11 alpha-dihydroxy-5-ketotetranorprosta-9,13-dienoic acid as shown by gas-liquid chromatography-mass spectrometry and by its conversion into 11 alpha-hydroxy-5-ketotetranorprosta-4(8),9, 13-trienoic acid.
mesh_terms: D000527:Alprostadil / Q000031:analogs & derivatives / Q000652:urine; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002851:Chromatography, High Pressure Liquid; D008401:Gas Chromatography-Mass Spectrometry; D008297:Male; D011458:Prostaglandins E / Q000652:urine*; D051381:Rats; D011919:Rats, Inbred Strains; D014316:Tritium
chemical_list: D011458:Prostaglandins E; D014316:Tritium; C054933:delta-17-tetranorprostaglandin E1; C033246:prostaglandin E3; D000527:Alprostadil