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A sex difference of the concentrations of gonadotropins, its subunits and sex steroids in cord veins

, : A sex difference of the concentrations of gonadotropins, its subunits and sex steroids in cord veins. Acta Obstetrica et Gynaecologica Japonica 33(5): 711-713

In order to elucidate the sex difference of cord blood hormones, concentration of hCG, hCG-alpha, hCG-beta, hLH, hFSH, estradiol (E2), progesterone (P) and testosterone (T) in cord veins were assayed by radioimmunoassays. Mean concentrations of cord vein hCG, hCG-alpha and hLH were significantly higher in female than in male, but those of hFSH and T were significantly higher in male than in female. Male and female cord vein levels of hCG-beta, E2 and P were not significantly different and hCG-beta and hFSh levels in cord veins at term are low in both sexes. These lower concentrations of hLH in male may be a result of the feedback inhibitory action by the higher concentrations of T in male at term. These data suggest a sex difference in the synthesis and secretion of gonadotropins by the pituitary gland in the human foetus at term.


PMID: 6785991

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Kasner, N.A.; Kooy, N.W., 1997: Nifedipine does not inhibit Bay K 8644-mediated vasoconstriction in vivo. FASEB Journal 11(3): A216

Roth Peter H., 1969: Geologic observations in the western Wiggis group, Glarus canton. Nappe elements, thrust relationships, Cretaceous-Tertiary imbricate structures, Switzerland.

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