ABSTRACT
<p><b>OBJECTIVE</b>To observe the effect of Bushen Yiqi Hexue recipe on endometrial P21 and PCNA expression of embryo implantation dysfunctional mice.</p><p><b>METHOD</b>The expression of P21 protein was analyzed by means of immunoblot and immunohistochemical method. The expression of PCNA protein was analyzed by means of immunohistochemical method.</p><p><b>RESULT</b>The expression and disappearance of P21 and PCNA protein in endometrium of embryo implantation dysfunctional mice lagged behind in a temporal and cell specific manner. Bushenyiqihexue recipe could improve the expression of P21 and PCNA protein in a temporal and cell specific manner, and then improve the decidual reaction of endometrium of embryo implantation dysfunctional mice.</p><p><b>CONCLUSION</b>Improving the expression of P21 and PCNA protein in endometrium and eventually regulating endometrium decidual reaction is one of the mechanisms of improved embryo implantaion by Bushen Yiqi Hexue recipe.</p>
