Microestimation of 'formaldehydogenic steroids' by bismuthate oxidation.
نویسندگان
چکیده
Kiessling, W. (1934). Biochem. Z. 273, 103. King, E. J. & Delory, G. E. (1939). Biochem. J. 33, 1185. King, H. & Pyman, F. L. (1914). J. chem. Soc. 105, 1238. Kumler, W. D. & Eiler, J. J. (1943). J. Amer. chem. Soc. 65, 2355. Martin, J. B. & Doty, D. M. (1949). Analyt. Chem. 21, 965. Meyerhof, 0. & Suranyi, J. (1926). Biochem. Z. 178, 427. Morton, C. (1930). Quart. J. Pharm. 3, 438. Nimms, L. F. (1933). J. Amer. chem. Soc. 55, 1946. Nimms, L F. (1934). J. Amer. chem. Soc. 56, 1110. Oesper, P. (1950). Arch. Biochem. 27, 255. Paolini, V. (1911). B.C. Accad. Lincei, 20, i, 807. Paolini, V. (1912). B.C. Accad. Lincei, 21, ii, 350. Royal Society, Symbols Committee Report (1951). Toal, J. S. & Phillips, J. I. (1949). J. Pharm., Lond., 1, 869. Walker, D. G. & Warren, F. L. (1951). Biochem. J. 49, xxi.
منابع مشابه
A note on the rapid assay of 17-ketogenic steroids in urine.
The determination of urinary corticosteroids by their conversion to 17-ketosteroids (17-KS) on treatment of urine with sodium bismuthate has been recently reported (Norymberski, 1952; Norymberski, Stubbs, and West, 1953). The group of corticosteroids thus determined has been termed 17-ketogenic steroids (17-KGS). The interest in this method shown by colleagues from other laboratories prompts us...
متن کاملPrinciples of the enzymatic measurement of steroids.
Information on steroid concentrations in tissues is important for an understanding of the metabolism of these substances and also for diagnostic purposes in certain clinical conditions. Existing procedures for determining steroids, either singly or in mixtures, are based upon calorimetric methods or tedious bioassays. The merits and limitations of these procedures have been critically appraised...
متن کاملPURIFICATION, CHARACTERIZATION, AND ANALYTICAL APPLICATIONS OF A 178-HYDROXySTEROID DEHYDROGENASE FROM AN ALCALIGENES
By selecting for growth on testosterone or estradiol17B as the only source of organic carbon, we have isolated a number of soil microorganisms which contain highly active and novel, inducible, NAD-linked 3a-, 3&, and 176-hydroxysteroid dehydrogenases. Such enzymes are suitable for the microanalysis of steroids and of steroid-transforming enzymes, as well as for performing stereoselective oxidat...
متن کاملIndirect analysis of corticosteroids. 5. The determination of 17-deoxycorticosteroids.
(III) from (I) and of 21-norpregnan-20-als (IV) from (II) (Brooks & Norymberski, 1953). The last conversion was presumed; it is now established by the isolation of 3,-hydroxy-21-norpregn-5-en-20-al (VI) (as its acetate) from the reaction of pregn-5ene-3f:20fl:21-triol (V) with sodium bismuthate. Reduction with borohydride followed by oxidation with sodium bismuthate was expected to convert 20:2...
متن کاملSynthesis of Novel 17-Oxo-17a-Aza-D-Homo-3, 5-Seco-Steroids as Potential 5α-Reductase Inhibitors
Benign prostatic hyperplasia (BPH) is a non-malignant enlargement of the prostate gland. Itis a leading disorder of the elderly male population. Excessive production of dihydrotestosteronehas been implicated in this pathological condition. Steroidal 5α-reductase is a membrane boundNADPH dependent enzyme which is responsible for the conversion of testosterone (T) todihydrotestosterone (DHT). The...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Biochemical journal
دوره 56 2 شماره
صفحات -
تاریخ انتشار 1954