Biomaterial Database

Estrogen and progesterone receptor manipulations in castrated rat uterus models and the clinical adaptation. 1998

U Saygili, and T Uslu, and K Yörükoğlu, and E Doğan, and O Erten

Dokuz Eylül University Faculty of Medicine Department of Obstetrics and Gynecology, Izmir, Turkey.

To investigate the influence of tamoxifen, danazol and triptorelin (a GnRH agonist) on estrogen and progesterone receptors of rat endometrium, 44 castrated Sprague-Dawley rats were divided into four equal groups, and each group received either no treatment or one of the agents. After administration of the agents, estrogen and progesterone receptor levels, detected by immunohistochemical methods, were compared with the controls. Estrogen and progesterone receptors were significantly higher in the tamoxifen group than the controls (p<0.05), but this was not noticed in the triptorelin group (p>0.05). Receptor levels were higher in the danazol group than the controls, but it was significant only in the estrogen receptors. Among the 3 groups, receptor levels were higher than in the control group. There was not any correlation among the estrogen and progesterone receptor levels in all groups. Steroid receptor manipulations can be used in the treatment of gynecologic cancer, but further investigations are needed.

UI	MeSH Term	Description	Entries
D008186	Luteolytic Agents	Chemical compounds that cause LUTEOLYSIS or degeneration of the CORPUS LUTEUM.	Luteolytic Agent,Luteolytic Effect,Luteolytic Effects,Agent, Luteolytic,Agents, Luteolytic,Effect, Luteolytic,Effects, Luteolytic
D010052	Ovariectomy	The surgical removal of one or both ovaries.	Castration, Female,Oophorectomy,Bilateral Ovariectomy,Bilateral Ovariectomies,Castrations, Female,Female Castration,Female Castrations,Oophorectomies,Ovariectomies,Ovariectomies, Bilateral,Ovariectomy, Bilateral
D011960	Receptors, Estrogen	Cytoplasmic proteins that bind estrogens and migrate to the nucleus where they regulate DNA transcription. Evaluation of the state of estrogen receptors in breast cancer patients has become clinically important.	Estrogen Receptor,Estrogen Receptors,Estrogen Nuclear Receptor,Estrogen Receptor Type I,Estrogen Receptor Type II,Estrogen Receptors Type I,Estrogen Receptors Type II,Receptor, Estrogen Nuclear,Receptors, Estrogen, Type I,Receptors, Estrogen, Type II,Nuclear Receptor, Estrogen,Receptor, Estrogen
D011980	Receptors, Progesterone	Specific proteins found in or on cells of progesterone target tissues that specifically combine with progesterone. The cytosol progesterone-receptor complex then associates with the nucleic acids to initiate protein synthesis. There are two kinds of progesterone receptors, A and B. Both are induced by estrogen and have short half-lives.	Progesterone Receptors,Progestin Receptor,Progestin Receptors,Receptor, Progesterone,Receptors, Progestin,Progesterone Receptor,Receptor, Progestin
D003613	Danazol	A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders.	Azol,Cyclomen,Danatrol,Danazant,Danazol-Ratiopharm,Danocrine,Danol,Danoval,Ladogal,Norciden,Panacrine,Danazol Ratiopharm
D004195	Disease Models, Animal	Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004965	Estrogen Antagonists	Compounds which inhibit or antagonize the action or biosynthesis of estrogenic compounds.	Estradiol Antagonists,Antagonists, Estradiol,Antagonists, Estrogen
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013629	Tamoxifen	One of the SELECTIVE ESTROGEN RECEPTOR MODULATORS with tissue-specific activities. Tamoxifen acts as an anti-estrogen (inhibiting agent) in the mammary tissue, but as an estrogen (stimulating agent) in cholesterol metabolism, bone density, and cell proliferation in the ENDOMETRIUM.	ICI-46,474,ICI-46474,ICI-47699,Nolvadex,Novaldex,Soltamox,Tamoxifen Citrate,Tomaxithen,Zitazonium,Citrate, Tamoxifen,ICI 46,474,ICI 46474,ICI 47699,ICI46,474,ICI46474,ICI47699