使用计算机辅助精子分析系统通过精子机械能评估生育能力。
Assessment of fertility by sperm mechanical energy using computer-assisted sperm analysis system.
作者信息
Isobe Tetsuya
机构信息
Reproductive Medical Center Suzuka Kaisei Hospital 112-1 Koucho 513-8505 Suzuka Mie Japan.
出版信息
Reprod Med Biol. 2008 Dec 13;8(1):25-31. doi: 10.1007/s12522-008-0004-7. eCollection 2009 Mar.
PURPOSE
It is known that the energy distribution of sperm obeys the following equations and the total mechanical energy in a sperm population is expressed as × a constant. /10 is defined as the sperm energy index (SEI). [Formula: see text] Here, is the existing probability density of sperm, is the square of amplitude of lateral head displacement, is the mean of , is the number of motile sperm in semen in a measurement field, and is a constant determined for each semen sample. These values can be obtained with the use of computer-assisted sperm analysis (CASA).
METHODS
Sperm motility parameters were measured using CASA in 163 ejaculated semen samples from 47 infertile men (infertility group), and 162 ejaculated semen samples from 45 fertile men (natural pregnancy group). is defined for the present investigation as the mean energy index (MEI). SEI and MEI were obtained according to the methods described in sperm energy theory.
RESULTS
There were no natural pregnancy subjects with SEI < 0.5. All subjects with MEI > 2.0 and SEI > 1.0 were in the natural pregnancy group.
CONCLUSIONS
An assessment of fertility was possible by using the sperm energy index.
目的
已知精子的能量分布遵循以下方程，精子群体中的总机械能表示为×一个常数。/10被定义为精子能量指数（SEI）。[公式：见正文] 在此，是精子的现存概率密度，是头部横向位移幅度的平方，是的平均值，是测量视野中精液中活动精子的数量，并且是为每个精液样本确定的常数。这些值可通过计算机辅助精子分析（CASA）获得。
方法
使用CASA测量了47名不育男性的163份射出精液样本（不育组）和45名有自然受孕能力男性的162份射出精液样本（自然受孕组）中的精子活力参数。在本研究中定义为平均能量指数（MEI）。根据精子能量理论中描述的方法获得SEI和MEI。
结果
没有SEI<0.5的自然受孕受试者。所有MEI>2.0且SEI>1.0的受试者都在自然受孕组中。
结论
通过使用精子能量指数可以评估生育能力。
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