ABSTRACT
OBJECTIVE:To study the effects of Tiaojing zhuyun capsules on the number of blastocyst implantation,estrogen, progestogen and their receptors(ER,PR)in mice with implantation dysfunction. METHODS:48 pregnant mice were randomly di-vided into normal control group (normal saline),pathological model group (normal saline) and Tiaojing zhuyun capsules group (24 g/kg),with 16 mice in each group. They were given relevant medicine intragastrically,once a day,for consecutive 3 d. On the 4th day,those mice were given mifepristone 0.1 ml subcutaneously to induce implantation dysfunction model except for normal control group. On the 5th day,the mice were sacrificed. The number of blastocyst implantation sites was observed. The serum lev-els of estradiol (E2) and progesterone (P) were determined by radioimmunoassay,and the expression of ER and PR protein were determined by immunohistochemistry. RESULTS:On the 5th day of pregnancy,the number of embryo implantation sites,serum levels of E2 and P and the protein expression of ER and PR in pathological model group were significantly lower than in normal con-trol group(P<0.05);the number of embryo implantation sites,levels of E2 and P,the protein expression of ER and PR in Tiao-jing zhuyun capsules group were significantly higher than in pathological model group (P<0.05). CONCLUSIONS:Tiaojing zhuyun capsules can effectively improve the serum levels of E2 and P,the protein expression of ER and PR,and increase the num-ber of blastocyst implantation sites in mice.