Suppression of gonadotropin secretion and prevention of ovulation in the rat by antiserum to synthetic gonadotropin-releasing hormone |
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Authors: | Y Koch P Chobsieng U Zor M Fridkin H R Lindner |
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Affiliation: | 1. Department of Biodynamics, the Weizmann Institute of Science Rehovot, Israel;1. Department of Chemistry, the Weizmann Institute of Science Rehovot, Israel |
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Abstract: | Administration of an antiserum (0.10–0.25 ml/rat) to the synthetic decapeptide “luteinizing hormone releasing hormone” (LH-RH) suppressed the cyclic surge of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) in proestrous rats and prevented ovulation; exogenous LH reversed the block of ovulation. Serum prolactin levels remained unaffected. In ovariectomized rats, the antiserum suppressed the elevated serum levels of both gonadotropins. These findings are compatible with the view that the synthetic decapeptide is identical with the natural hypothalamic hormone that regulates the secretion of both LH and FSH. |
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