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已确知卵泡发育同时有雌二醇(E_2)升高。外周循环 E_2迅速上升,刺激宫颈粘液的量及拉丝状增加,随后启动垂体释放黄体生成素(LH)出现高峰,因此连续测定外周血浆中 LH 及 E_2,可用作预测排卵。循环中 LH 显著升高达一定水平后才能使卵巢发生排卵及黄体化。一般在 LH 上升24～56小时后,血浆 LH 基值水平增加50%是排卵着床的最好激素指标。由于 LH 迅速排出,尿中 LH 在发生排卵的20～44小时(平均30小时)内浓度上升,因此可作为妇女受孕开始的标记。捧卵前38小时或排卵后52小时,外周循环中孕酮(P)水平上升提示黄体化开
It is known that follicular development is accompanied by an increase in estradiol (E2). Peripheral circulation E_2 rapidly increased to stimulate the amount of cervical mucus and drawing increased, and then start the pituitary release of luteinizing hormone (LH) peak, so continuous determination of peripheral plasma LH and E_2, can be used as a prediction of ovulation. Circulation LH increased significantly up to a certain level before ovulation and lutealization ovary. Generally increased 24 to 56 hours after LH, LH plasma levels increased by 50% is the best ovulation implantation hormone indicators. Due to rapid excretion of LH, urinary LH rises in concentration within 20 to 44 hours of ovulation (an average of 30 hours) and can therefore be used as a marker of the onset of conception in women. 38 hours before ovulation or 52 hours after ovulation, an increase in progesterone (P) levels in the peripheral circulation suggests that lutealization