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Iranian Journal of Basic Medical Sciences، جلد ۱۴، شماره ۳، صفحات ۲۴۰-۲۴۸
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عنوان انگلیسی The Effect of Tamoxifen on the Fetal and Neonatal Ovarian Follicles Development in Rats
چکیده انگلیسی مقاله Objective(s) The effect of tamoxifen as a selective estrogen receptor modulator which is widely used for treatment of early and metastatic breast cancer was investigated on the folliculogenesis in rat's fetuses and neonates. Materials and Methods The pregnant rats assigned into test and control groups. Control group received olive oil and treatment groups received either 17-β-estradiol (10 µg/kg/day) or tamoxifen (0.4 mg/kg/day) between days 8-13 of pregnancy. On day 20th of pregnancy the rats euthanized and the blood samples were collected for determination of FSH, E2, and the fetuses fixed for histological studies. Another group of pregnant rats went forward to obtain their neonates and we euthanized the neonates and the genital system was collected for further histopathological analyses on day 5th. Results The histological examinations of the fetus’s and neonate's ovaries and biochemical data showed significant changes in the rats which treated with tamoxifen. The absence of folliculogenesis and an increase in E2 level in tamoxifen-treated group which accompanied with sharp decrease of FSH level in comparison with the control group were demonstrated. By contrary, E2 treated group showed a positive progress in development in terms of the formation of secondary follicles and also supportive connective tissues in comparison with the control group. Conclusion This study supports the previous findings showing that tamoxifen has effects on the development of ovaries and therefore, it should be avoided or used with great caution in pregnant women.
کلیدواژه‌های انگلیسی مقاله 17- β-estradiol, Folliculogenesis, FSH, Ovary, Tamoxifen
نویسندگان مقاله حسن ملکی نژاد | hassan malekinejad
department of pharmacology amp;amp; toxicology, faculty of veterinary medicine, urmia university, urmia, iran

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

مهدی حمیدی | mahdi hamidi
department of pharmacology amp;amp; toxicology, faculty of veterinary medicine, urmia university, urmia, iran

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

رجبعلی صدرخانلو | rajab ali sadrkhanloo
department of histology and embryology, faculty of veterinary medicine, urmia university, urmia, iran

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

عباس احمدی | abbas ahmadi
department of histology and embryology, faculty of veterinary medicine, urmia university, urmia, iran

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

نشانی اینترنتی http://ijbms.mums.ac.ir/article_4999.html
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