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shuang que shi tan zuo ( kang yun -53) dui jia tu kang sheng yu xiao ying ji xue jiang yun tong he ci ji su de ying xiang
Pages: 573-578
Year: Issue:  6
Journal: Acta Physiologica Sinica

Keyword:  Anordrinanti-implantationtermination of early pregnancyprogesteroneestrogen;
Abstract: 1.A single dose of Anordrin(10.5 mg/kg)was orally administered on day 1post coitus,laparotomy was performed on day 11 to examine the number of implanta-tion sites.The number of implantation sites in the treated group was 0.4±0.4(mean±SEM),instead of 9.7±1.6 as in the control group.2.The rabbits were fed consecutively with 3 doses of Anordrin(5 mg/kg perday)on days 7,8,9 post coitus.On day 17 post coitus,laparotomy was performed toexamine the development of embryos.The number of fetuses in the control groupwas 7.5±1.1;in the treated group,surviving and dead fetuses were respectively0.3±0.3 and 7.0±0.5.3.Plasma concentration of progesterone started to decrease on the eleventhday after mating,but the plasma concentration of estrogen was not changed.
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