In the inducing uterine receptivity for implantation, the ovariectomized uterus in experimental group injected with (P4)3+P4+E2 showed strong staining for CSD in the luminal and glandular epithelia and more stromal cells also became positive.

• 在模拟着床的激素处理实验中,连续注射3天P_4,第四天只注射P_4的对照组((P_4)_3+P4)中,子宫腔的形态没有达到胚胎着床的容受状态;