Proctor J Glenn, Blackhurst Dawn W, Boone William R
Department of Obstetrics and Gynecology, Greenville Hospital System, Greenville, South Carolina, USA.
J Assist Reprod Genet. 2004 Jul;21(7):263-70. doi: 10.1023/b:jarg.0000042012.12958.9e.
To determine if seasonal changes alter pregnancy rate in intrauterine insemination (IUI) patients.
One-thousand and eighty semen analyses prepared for IUI were evaluated in this retrospective cohort study of 496 patients.
Volume, pH, sperm concentration, and pregnancy rates were not altered by season. However, the percent motility, the total motile spermatozoa in the ejaculate, the straight-line velocity (VSL) of spermatozoa, as well as the morphology of sperm were altered by season. In a subset of these patients that were defined as normal, only the VSL and the morphology of the spermatozoa were altered by seasonal changes.
Seasonality alters sperm motility parameters as well as morphology, but these changes are not significant enough to alter pregnancy rates.
确定季节变化是否会改变宫内人工授精（IUI）患者的妊娠率。
在这项对496例患者的回顾性队列研究中，对为IUI准备的1080份精液分析进行了评估。
精液量、pH值、精子浓度和妊娠率不受季节影响。然而，精子活力百分比、射精中的总活动精子数、精子的直线速度（VSL）以及精子形态受季节影响。在这些被定义为正常的患者亚组中，只有精子的VSL和形态受季节变化影响。
季节变化会改变精子活力参数以及形态，但这些变化不足以显著改变妊娠率。
