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대한생식의학회지 제14권 제1호 2010년
흰쥐 착상시기에 자궁내 난소 홀몬 수용체와 Prostaglandin 및 cAMP 농도변화에 관한 연구
연세대학교 의과대학 내분비연구실;연세대학교 의과대학 약리학교실;
윤미정;유경자;,
Studies on the Concentrations of Receptors for Ovarian Steroids, Prostaglandins and cAMP in Uterine Tissue during the Period of Implantation in Rats
Yoon, M.;Ryu, K.;
Endocrine Laboratory, Yonsei University College of Medicine;Department of Pharmacology, Yonsei University College of Medicine;
In the present study, hormonal changes in uterine tissue and circulation were evaluated during the implantation period in rats in order to understand the mechanism by which implantation takes place. The results obtained were as follows. 1. Concentrations of serum estradiol and progesterone were significantly increased on days 4 and 5. 2. Concentration of estrogen receptor reached maximum on day 5 when implantation normally occurred in rats. On the other hand, progesterone receptor was gradually decreased, reaching the lowest on day 5. 3. Uterine PGs and cAMP concentrations were significantly increased on day 5. 4. Uterine PGs and cAMP concentrations in implant sites were significantly greater than those in non-implant sites. It is, therefore, concluded that prostaglandins and cAMP in uterine tissue as well as circulating ovarian steroid hormones were increased during the period of implantation, suggesting that these hormones might be actively involved in the process of implantation in rats.
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