Expression of Leukenia Inhibitory Factor in Mouse Endometrium
妊娠小鼠子宫内膜LIF基因表达的研究

Leukemia inhibitory factor(LIF)is a glycoprotein with multiple activities and is essential for blastocyst implantation in mouse.We have examined LIF gene expression in mice endometrium on day 4(group Ⅰ),day 7(group Ⅱ),day 10(group Ⅲ)of pregnancy.In group Ⅰ all had LIF gene expression,5 mice had LIF gene expression in group Ⅱ,only one mouse had LIF gene expression in group Ⅲ.We discussed the relation between level of LIF gene expression and embryonic implantation.