着床期子宫内膜降钙素的表达呈周期性特征,与“种植窗”的开放相吻合。着床结束后,表达下降,阻断其表达,可导致着床失败。对假孕小鼠子宫内膜降钙素mRNA的检测发现其降钙素的表达不要求胚胎存在,只受母体因素调控,提示:降钙素在子宫内膜容受性形成和维持中起重要作用。 Implantation of endometrial calcitonin expression was periodic characteristics, and “planting window” open coincide. After implantation, expression decreases, blocking its expression, can lead to implantation failure. Detection of endometrial calcitonin mRNA in pseudopregnant mice found that calcitonin expression did not require the presence of embryos and was only regulated by maternal factors, suggesting that calcitonin plays an important role in the formation and maintenance of endometrial receptivity effect.