title: Measurement of urinary steroid production rates using stable-isotopes and GC-MS.
abstract: The urinary production rate of pregnenolone has been determined for a male subject using 7,7-d2-pregnenolone as an isotopic tracer.
mesh_terms: D000328:Adult; D002849:Chromatography, Gas / Q000379:methods; D003903:Deuterium; D005965:Glucuronates / Q000652:urine; D006801:Humans; D008297:Male; D013058:Mass Spectrometry / Q000379:methods; D011284:Pregnenolone / Q000652:urine*; D013256:Steroids / Q000652:urine*; D013464:Sulfuric Acids / Q000652:urine
chemical_list: D005965:Glucuronates; D013256:Steroids; D013464:Sulfuric Acids; D011284:Pregnenolone; D003903:Deuterium