Objective: To investigate whether ovulation drugs, embryos and pregnant hormones can influ-ence the expression of integrin av and Ley oligosaccharide and/or the opening of implantation at window in en-dometrium of mice.

• 目的:探讨促排卵药、胚胎本身及孕后激素等条件对小鼠子宫内膜整合素av和Ley寡糖的表达及对着床窗开放的影响。