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Horm Metab Res 1979; 11(5): 358-362
DOI: 10.1055/s-0028-1092738
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© Georg Thieme Verlag KG Stuttgart · New York

Luteotrophic Capacity of TRH in the Baboon

N.  Hagino , T.  Koyama
  • Department of Anatomy, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, U.S.A.
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Publikationsdatum:
17. Dezember 2008 (online)

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Abstract

An attempt was made to determine the synergistic effect of TRH stimulated prolactin with LH on the luteinization of corpus luteum in baboons. Four normally cycling female baboons were used in this study. Synthetic LHRH (100 µg) was given during the early luteal phase and blood samples were collected sequentially for assay of progestin. In additional experiments, 40 µg of synthetic TRH was given at 30 and 60 minutes after LHRH injection and blood samples were assayed for progestin. Injection of LHRH elevated the plasma level of progestin. Subsequent treatment with TRH in LHRH treated baboons enhanced the elevation of plasma progestin in three of four baboons. The evidence illustrates the nature of synergistic effect of prolactin with LH on the luteinization of corpus luteum in baboons.

Key words

Baboons - TRH - LHRH - Plasma Progestin - Luteinization

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