Lee J N, Lian J D, Lee J H, Chard T
Fertil Steril. 1983 May;39(5):704-6. doi: 10.1016/s0015-0282(16)47070-6.
Placental proteins, including human chorionic gonadotropin (hCG), human placental lactogen (hPL), pregnancy-specific beta 1-glycoprotein (SP1), and placental protein 5 (PP5) have been detected in human seminal plasma of 20 normal men and 42 patients with infertility. Levels of hPL, SP1, and PP5 were similar in these groups. There were significantly higher levels of hCG in subjects with normal sperm counts than in those with oligospermia or azoospermia. The levels of PP5 in seminal plasma showed an association with sperm motility, suggesting that PP5 may have a significant biologic function in the maintenance of sperm motility.
在20名正常男性和42名不育患者的人类精浆中检测到了胎盘蛋白，包括人绒毛膜促性腺激素（hCG）、人胎盘催乳素（hPL）、妊娠特异性β1-糖蛋白（SP1）和胎盘蛋白5（PP5）。这些组中hPL、SP1和PP5的水平相似。精子计数正常的受试者的hCG水平显著高于少精子症或无精子症患者。精浆中PP5的水平与精子活力相关，这表明PP5可能在维持精子活力方面具有重要的生物学功能。
