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Role of oestradiol-17β in the regulation of synthesis and secretion of human chorionic gonadotrophin by first trimester human placenta

Sharma, SC and Purohit, P and Rao, AJ (1993) Role of oestradiol-17β in the regulation of synthesis and secretion of human chorionic gonadotrophin by first trimester human placenta. In: Journal of Molecular Endocrinology, 11 (1). pp. 91-101.

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Official URL: http://jme.endocrinology-journals.org/cgi/content/...

Abstract

Inhibition of aromatase, a key enzyme in the biosynthesis of oestradiol-17 beta, by the addition of 1,4,6-androstatrien-3,17-dione resulted in a significant increase in the levels of immunoreactive human chorionic gonadotrophin (hCG) in the medium and tissue. This increase was partially reversed by the simultaneous addition of oestradiol-17 beta. These effects on the levels of immunoreactive hCG were also reflected by the increased levels of mRNA specific for the alpha and beta subunits of hCG following the addition of the aromatase inhibitor. However, addition of tamoxifen resulted in a drastic decrease in the levels of both the messages. Based on these results, it is suggested that the synthesis of hCG is negatively modulated by oestradiol-17 beta in the human placenta.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Society for Endocrinology.
Department/Centre: Division of Biological Sciences > Biochemistry
Others
Date Deposited: 04 Mar 2011 06:53
Last Modified: 04 Mar 2011 06:53
URI: http://eprints.iisc.ernet.in/id/eprint/35734

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