Gas chromatographic analysis of urinary 17-ketosteroids in young Japanese adults.
نویسنده
چکیده
منابع مشابه
Studies on the chromatographic fractionation of urinary 17-ketosteroid, with special reference to the influence of gonadotropin.
Urinary 17-ketosteroids have been fractionated on alumina column into eight fractions by Dingemanse, et al. (1946)and on a more convenient microscale by Zygmuntowicz, et al. (1951), Pond(1951, 1954)and Edwards, et al. (1953). Using the latter technic, 17-ketosteroids in the urine of young and old people, of men and women, and of castrated people and others have been studied and the relations be...
متن کاملEvaluation of hydrolytic products of 17-ketosteroids by means of gas-liquid chromatography.
In the course of evaluating urinary 17-ketosteroid (17-KS) gas-liquid chromatographic patterns, a number of peaks with retention times shorter than that of 17-KS were constantly observed. This backgroundmaterial was found to be degradation products of 17-KS produced by HCI hydrolysis. A study with pure 17-KS as a mixture and as individual steroids was used to identify the steroids responsible f...
متن کاملAnalysis of urinary 17-ketosteroids by gas-liquid chromatography.
A method is presented for the resolution of urinary 17-ketosteroids (17-KS) by gasliquid chromatography (GLC) for clinical application. Hot acid hydrolysis with sulfuric acid is followed by ether extraction, 1 N NaOH wash, and NaOH pellets to serve for both purifying and drying agent. All steps take place in the same re3ction tube and are adapted for mechanical shaking. The method allows one an...
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Numerous methods are available for measuring urinary steroids in evaluating endocrine dysfunctions. Measurements of these particular steroids, or groups of them, usually involve tedious isolation methods, corrections for interferences and losses of the steroid, and (or) expensive reagents. We show how gas-liquid chromatography provides a rapid, sensitive, and direct method for several steroid m...
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The question of whether or not there is an increase in adrenal cortical secretion during pregnancy remains unsettled. Morphologic studies of the adrenal during gestation have revealed enlargement of the gland in some species (1) and no enlargement in others (2). In the human female, several groups of investigators have observed a progressive rise in the plasma 17-hydroxycorticosteroid (17-OH-co...
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ورودعنوان ژورنال:
- Acta medica Nagasakiensia
دوره 11 3 شماره
صفحات -
تاریخ انتشار 1967