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  • Title: Simultaneous determination of adreno-ovarian steroids from a single aliquot.
    Author: Sharma DP, Venkita Subramanian TA.
    Journal: Biochem Med; 1974 Oct; 11(2):103-13. PubMed ID: 4458660.
    Abstract:
    A standardized technique for simultaneous fractionation and estimation of samples of progesterone, estrone, 17alpha-estradiol, 17beta-estradiol, estriol, corticosterone, cortisone, and cortisol obtained from guinea-pigs during mid-pregnancy is presented. The hormones were separated on a single TLC plate using a single solvent system, and were measured on a single biphasic column on the basis of a single aliquot. The technique affords considerable utility in the inves tigation of the complexities of the adreno-genital syndrome. Progesterone content in the ovaries and plasma showed an increase of 77% during pregnancy, while plasma levels of estrone were increased by 34%. Urinary estradiol levels were also markedly increased. Plasma estradiol and estriol and placental estriol could not be detected by the technique. Adrenal cortisone levels and plasma cortisone and cortisol were considerably higher during pregnancy. An initial overlap was found between cortisol and estriol on the TLC plate, though subsequent estimation by GLC overcome the problem.
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