Conjugation of Urinary Phenolic Steroids in the Nonpregnant Human Female with Particular Reference to Estrone Sulfate1

Autor: R. Hobkirk, P. R. Blahey, Mona Nilsen
Rok vydání: 1969
Předmět:
Zdroj: The Journal of Clinical Endocrinology & Metabolism. 29:328-337
ISSN: 1945-7197
0021-972X
DOI: 10.1210/jcem-29-3-328
Popis: The mode of conjugation of urinary metabolites of injected 17β-estradiol-6,7-3H was studied in 10 nonpregnant human females. Estrone was the major identified constitutent of a fraction released from conjugation by solvolysis and this “estrone sulfate” accounted for 2–65% of total urinary estrone. In one instance, in an apparently normal young female, estrone-3-sulfate was directly identified as a quantitatively major metabolite, exceeding the glucosiduronates of both estrone and estriol. The considerable “sulfate conjugation” of estrone and of other estrogen metabolites in this subject was apparently a reproducible finding. Besides estrone, 2-methoxyestrone was regularly identified in the subjects studied, as a component of the fraction released by solvolysis and this conjugated form accounted for up to 63% of total urinary 2-methoxyestrone. Endogenous urinary “estrone sulfate” in the normal menstrual cycle varied considerably between subjects and accounted for 0–71% of total estrone. Other metab...
Databáze: OpenAIRE