体外取精对血清催乳素水平的影响

Effects of ejaculation by masturbation in vitro on serum prolactin secretion

目的探讨体外取精对生殖激素水平的影响及催乳素（prolaetin，PRL）水平升高与取精充分度之间的关系。方法按体外取精时间将172例受检者分为排精前组和排精后组，比较两组间生殖激素的差异；将排精后82例按排精性高潮程度分为性满意组和不充分组，观察两组血清生殖激素水平的差异。结果取精前后血清催乳素水平[（0．35±0．17）与（0．55±0．18）nmol／L1差异有统计学意义（P〈0．05）。性高潮不充分组与满意组血清催乳素水平[（0．43±0．13）与（0．57±0．18）nmol／L]差异有统计学意义（P〈0．05）。不同组间睾酮、雌二醇、促卵泡激素和促黄体生成素水平差异无统计学意义（P〉0．05）。结论体外排精可引起催乳素分泌增加，催乳素水平升高可能与性兴奋程度有关，或许可以作为评估体外取精充分的参考指标。

Objective To investigate the effects of ejaculation by masturbation in vitro on serum re-productive hormone release and to evaluate the relationship between prolactin raising and orgasm satisfaction. Methods One hundred and seventy-two men were divided into two groups according to the time of collec-ting the blood before or after ejaculation. The after ejaculation group was further divided into two subgroups according to the orgasm satisfaction. Serum reproductive hormone levels were then assessed in different groups. Results Serum prolactin level was significant higher in the after ejaculation group （0.55 ± 0.18） nmol/L than in the before ejaculation group [ （0.35 ± 0.17） nmol/L, P 〈 0. 05 ]. Prolactin level was sig-nificant lower in insufficient orgasm men （0.43 ± 0. 13 ） nmol/L than in orgasm satisfied men [ （0.57 ±0. 18） nmol/L, P 〈 0.05 ]. The other reproductive hormone （ testosterone, estradiol, follicle stimulating hormone and luteinizing hormone） showed no significant difference in different groups. Conclnsions Ser-um prolactin level is increased after ejaculation and maybe related to the orgasm satisfaction status. Elevated serum prolaetin level perhaps could be used as a marker in assessing the semen collection by masturbation.