APP下载

体外操作对人精子运动参数及细胞内活性氧簇的影响

2016-10-21史潇王婷周瑶刘厉詹晓敏陈思梅全松

国际生殖健康/计划生育杂志 2016年5期
关键词:影响检测研究

史潇,王婷,周瑶,刘厉,詹晓敏,陈思梅,全松

体外操作对人精子运动参数及细胞内活性氧簇的影响

史潇,王婷,周瑶,刘厉,詹晓敏,陈思梅,全松

目的:研究体外物理操作(离心以及微量加样器抽吸)对人精子运动参数以及细胞内活性氧簇(ROS)的影响,旨在优化人精子体外处理方法。方法:7例精液常规参数正常的标本,采用不同离心力(200 g,600 g)及离心时间(5min,15min)以及不同微量加样器抽吸次数(2,6,10次)进行处理,测试精子运动参数和细胞内ROS的变化。结果:①活动精子百分比以及活精子细胞内ROS水平主要受到离心时间的影响(P<0.05);前向运动精子百分比(PR)以及平均运动速率(VAP)均不受离心力及离心时间的影响(P>0.05)。单因素方差分析多重比较结果提示,当离心时间为5min以上时精子活动力显著下降,而ROS水平显著增加(P<0.05)。②加样器抽吸2次以上可致人精子活动力显著下降(P<0.05),抽吸6次以上可导致人精子PR及VAP显著降低(P<0.05);但抽吸操作并未显著影响精子细胞内ROS的水平。结论:在人精子体外操作时应尽量缩短离心时间并控制加样器抽吸次数从而保证正常的精子运动参数,也应尽量缩短离心时间从而减少体外操作所致的细胞内ROS升高。

精子;精子能动性;离心法,梯密度;抽吸;氧化性应激;受精,体外

【Abstract】Objective:To study the effects of centrifugation and pipette on humanmotility and intracellular ROS,so as to optimize the sperm handling procedure.Methods:Seven sperm samples with normal seminal parameters were treated with various centrifugation force(200 g,600 g)and centrifugation duration(5 min,15 min)and different pipetting times(2,6,10 times).Motility parameter and intracellular ROS were measured. Results:For the centrifuge procedure,the centrifugation duration could significantly influence the sperm motility and intercellular ROS level(P<0.05),while centrifugation did not significantly influence the percentage of progressivemotile sperm(PR)and the velocity of average path(VAP)(P>0.05).The centrifugation durationmore than 5 minutes could significantly decrease the sperm motility and intracellular ROS level(P<0.05).For the pipetting procedure,the pipetting more than 2 times would significantly decrease the sperm motility(P<0.05),while the pipetting over 6 times would significantly decrease the PR and VAP(P<0.05).However,the intracellular ROS levelwas not significantly changed by the repeated pipetting.Conclusions:The special causion is that the centrifuge over 5 m inutes and pipetting over 2 times should be avoided during in vitro hand ling human sperm sample.

【Keywords】Spermatozoa;Sperm motility;Centrifugation,density gradient;Suction;Oxidative stress;Fertilization in vitro

(JIntReprod Health/Fam Plan,2016,35:369-371)

精液体外处理是辅助生殖技术(assisted reproductive techniques,ART)的常规步骤,离心、加样器抽吸等体外操作是精液分析、冷冻以及优选等过程中必不可少的操作。根据以往对小鼠、大鼠等动物精子体外操作的经验,离心、加样抽吸等物理操作均可能造成精子损伤,并且不同动物精子对于离心、抽吸等体外操作的敏感性不同,因而精子所受损伤的程度也不同[1-4]。……

登录APP查看全文

猜你喜欢

影响检测研究
FMS与YBT相关性的实证研究
辽代千人邑研究述论
哪些顾虑影响担当?
视错觉在平面设计中的应用与研究
EMA伺服控制系统研究
扩链剂联用对PETG扩链反应与流变性能的影响
小波变换在PCB缺陷检测中的应用