Kirkali Z, Kirkali G, Esen A
Department of Urology, Dokuz Eylul University School of Medicine, Izmir, Turkey.
Eur Urol. 1995;27(4):292-4. doi: 10.1159/000475183.
While several manipulations such as digital rectal examination and cystoscopy have been shown to increase prostate-specific antigen (PSA) levels, lack of ejaculation for a period of time has been implicated as a cause of decreased serum PSA concentrations. However, the effect of ejaculation on the serum PSA concentration is not clear. This work determined the effect of ejaculation on serum PSA levels in normal men. Blood samples of 19 healthy subjects were taken before and 5 consecutive days after ejaculation. One subject was withdrawn from the study because of ejaculation during sleep, since another ejaculation was prohibited during the study. The mean PSA levels of the men before and 5 consecutive days after ejaculation were 0.79, 0.72, 0.63, 1.01, 0.71, and 0.74 ng/ml--not statistically significantly different. We conclude that ejaculation does not seem to affect the serum PSA concentration.
虽然诸如直肠指检和膀胱镜检查等多种操作已被证明会增加前列腺特异性抗原（PSA）水平，但一段时间内不射精被认为是血清PSA浓度降低的一个原因。然而，射精对血清PSA浓度的影响尚不清楚。这项研究确定了射精对正常男性血清PSA水平的影响。在19名健康受试者射精前及射精后连续5天采集血样。由于有一名受试者在睡眠中射精，而研究期间禁止再次射精，因此该受试者退出了研究。这些男性射精前及射精后连续5天的平均PSA水平分别为0.79、0.72、0.63、1.01、0.71和0.74 ng/ml，差异无统计学意义。我们得出结论，射精似乎不会影响血清PSA浓度。
