title: Development of a GC-MS method for quantitation of 2,3-dinor-6-keto-PGF1 alpha and determination of the urinary excretion rates in healthy humans under normal conditions and following drugs.
abstract: Tetradeuterated 2,3-dinor-6-keto-PGF1 alpha was used as internal standard in the development of a method for quantitation of 2,3-dinor-6-keto-PGF1 alpha in human urine based on gas chromatography - mass spectrometry. The urinary excretion rates of 2,3-dinor-6-keto-PGF1 alpha in twenty normal healthy males and females were 9.7 +/- 4.6 and 8.8 +/- 8.5 (mean +/- SD) ng/h respectively. A considerable inter- and intra-individual variation was found under normal conditions. It was also found that the urinary excretion of 2,3-dinor-6-keto-PGF1 alpha was increased about fivefold during and shortly after 30 min of strenuous jogging. Any data about the effect of nonsteroidal antiinflammatory drugs on the excretion rate of 2,3-dinor-6-keto-PGF1 alpha are difficult to interpret when considering the above findings. However, oral administration of 500 mg of aspirin did not seem to reduce the excretion rate of 2,3-dinor-6-keto-PGF1 alpha.
mesh_terms: D015121:6-Ketoprostaglandin F1 alpha / Q000031:analogs & derivatives* / Q000652:urine; D000328:Adult; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D001241:Aspirin / Q000494:pharmacology; D002648:Child; D002675:Child, Preschool; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D007213:Indomethacin / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion
chemical_list: D000893:Anti-Inflammatory Agents; D015121:6-Ketoprostaglandin F1 alpha; C028290:2,3-dinor-6-ketoprostaglandin F1alpha; D001241:Aspirin; D007213:Indomethacin