精子活力受损及生理参数异常
研究显示HPV感染可在一定程度上降低精子活力。Lee等人[1]发表在Gynecologic Oncology上的报道显示,在分别接触HPV-16,-18,-6b/11,-31,-33的E6/E7片段24h后,精子的活力均减弱至50%左右(对照组为74.0%),其中感染HPV16型的精子活力损失大半,仅为38.4%。精细胞的前进运动力也均降至一半左右。在暴露于高危的16型及所有低危型中后,头侧摆幅度均减小(见表1)。Foresta等人[2]发表在Fertility and Infertility上的报道也得出了相似结论,在HPV阴性组和阳性组中,精子活力a+b分别为53.7%和37.7%,受染组有70%(7/10)的精子活力受损,而在阴性组中这一比例为30%(27/90)。此外,也有研究显示HPV感染可影响精液的pH值[3]。
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