title: Serum and urinary estrone sulfate during the menstrual cycle, measured by a direct radioimmunoassay, and fate of exogenously injected estrone sulfate.
abstract: Serum and early-morning urinary levels of estrone sulfate during the menstrual cycle were measured by a direct radioimmunoassay without hydrolysis. These levels were high and showed prominent peaks [serum, 2.67 +/- 0.37 ng/ml (mean +/- SE); urine, 5.82 +/- 2.3 micrograms/l] around the day of the preovulatory estradiol-17 beta peak, and increased again during the luteal phase. Following intravenous injection of estrone sulfate, serum estrone sulfate, estrone and estradiol-17 beta were measured. The conversion of estrone sulfate to estrone and/or estradiol-17 beta was very small during their transit in the general circulation.
mesh_terms: D000293:Adolescent; D000328:Adult; D004958:Estradiol / Q000097:blood; D004970:Estrone / Q000031:analogs & derivatives* / Q000097:blood / Q000378:metabolism / Q000652:urine; D005260:Female; D006801:Humans; D008597:Menstrual Cycle; D011863:Radioimmunoassay
chemical_list: D004970:Estrone; D004958:Estradiol; C017296:estrone sulfate