Immunological regulation of the female reproductive tract to establish an efficient new artificial insemination system in mammals

在雌性生殖道中，存在免疫系统，以在交配或人工授精后迅速将精子从生殖道中清除。在本研究中，我们可以明确，无论是吞噬和趋化活性的牛和猪的多形核白细胞（PMNs），这主要是在该系统中执行，刺激新鲜血清的存在下，并在咖啡因，肝素和精浆的存在下下降。此外，中性粒细胞同样吞噬活动精子和死亡精子。

In the female reproductive tracts, immunological system exists to remove sperm from the tract rapidly after mating or artificial insemination. In the present study, we could make clear that both phagocytotic and chemotactic activities of bovine and porcine polymorphonuclear leukocytes (PMNs), which mainly perform in the system, are stimulated in the presence of fresh serum and decreased in the presence of caffeine, heparin, and seminal plasma. Furthermore, PMNs phagocytize equally both active motile and dead sperm.