Mathialagan, M and Rao, Jagannadha A (1989) A role for calcium in gonadotrophin-releasing hormone (GnRH) stimulated secretion of chorionic gonadotrophin by first trimester human placental minces in vitro. In: Placenta, 10 (1). pp. 61-70.
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In vitro studies using first-trimester human placental minces have shown that stimulation of human chorionic gonadotrophin (hCG) secretion by gonadotrophin-releasing hormone (GnRH) is dependent upon the presence of extracellular calcium. Addition of GnRH to first-trimester placental minces in vitro was found to stimulate 45Ca2+ uptake into placental minces, and the process was associated with an increase in immunoreactive hCG in the medium. Addition of GnRH to placental minces preloaded with 45Ca2+ stimulated the efflux of 45Ca2+ within one minute. The calmodulin inhibitors chlorpromazine andtrifluoperazine inhibited the basal uptake and efflux of 45Ca2+ suggesting the involvement of calmodulin in the mobilization of calcium in the placenta.
Item Type: | Journal Article |
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Publication: | Placenta |
Publisher: | Elsevier science |
Additional Information: | Copyright of this article belongs to Elsevier science. |
Department/Centre: | Division of Biological Sciences > Biochemistry |
Date Deposited: | 13 Oct 2010 08:52 |
Last Modified: | 13 Oct 2010 08:52 |
URI: | http://eprints.iisc.ac.in/id/eprint/33109 |
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