Wramsby H, Liedholm P
Hum Reprod. 1986 Apr;1(3):171-3. doi: 10.1093/oxfordjournals.humrep.a136374.
The fertilizing capacity of semen samples of seven fertile men was studied in vitro using zona-free hamster ova (hamster test). Spermatozoa of each sample were pre-incubated 4 or 24 h before ova were inseminated for 3 h. An extended insemination for an additional 3 h was also performed after the shorter pre-incubation. The overall ovum penetration rate changed from 0 to 100% (mean 52%) after short (4 h) sperm pre-incubation and from 10 to 100% (mean 55%) after long (24 h) pre-incubation. Taking into account the combination of short and long pre-incubation periods, all donors reached a penetration rate of 67 to 100%. The results indicate that both short and long pre-incubation periods must be employed when the hamster test is used diagnostically to assess the fertilizing capacity of human spermatozoa.
利用去透明带仓鼠卵(仓鼠试验)在体外研究了7名生育能力正常男性精液样本的受精能力。在卵子受精3小时前,每个样本的精子先预孵育4小时或24小时。在较短时间预孵育后,还额外延长3小时进行受精。精子短时间(4小时)预孵育后,总体卵子穿透率从0%变为100%(平均52%);长时间(24小时)预孵育后,总体卵子穿透率从10%变为100%(平均55%)。综合考虑短时间和长时间预孵育的情况,所有供体的穿透率达到了67%至100%。结果表明,当使用仓鼠试验诊断评估人类精子的受精能力时,必须采用短时间和长时间预孵育两种方式。