Degheidy T, Abdelfattah H, Seif A, Albuz F K, Gazi S, Abbas S
Medical Research Laboratory, Dr Samir Abbas Medical Centers, Jeddah, Saudi Arabia.
Genetic Laboratory, Dr Samir Abbas Medical Centers, Jeddah, Saudi Arabia.
Andrologia. 2015 Oct;47(8):892-6. doi: 10.1111/and.12343. Epub 2014 Sep 11.
Semen parameters of varicocele men have been usually suspected to exhibit higher levels of abnormalities including DNA fragmentation, reactive oxygen species (ROS) and apoptotic markers. Negative correlation between increased level of DNA fragmentation and assisted reproductive techniques (ART) outcome has been studied by several authors. In the current study, we aim to evaluate the possible value of magnetic activated cell sorting (MACs) technology in reduction of DNA fragmentation in infertile varicocele patients prior to ART. Semen samples, collected from 36 varicocele patients, were prepared by density gradient centrifugation (DGC). Every sample was subsequently divided into two aliquots. One aliquot was kept untouched as pre-MACs control while the other aliquot was subjected to MACs technique, for depletion of apoptotic spermatozoa, and serves as post-MACs test. Sperm count, motility and DNA fragmentations were evaluated for both control and test samples. Post-MACs samples showed no deleterious reduction in total sperm motility (80.64 ± 6.97%) compared with control samples (80.97 ± 7.74%) while sperm DNA fragmentations were significantly reduced in post-MACs samples (9.61 ± 5.62%) compared with pre-MACs controls (12.43 ± 6.29%) (P < 0.05). It can be concluded that MACs technique is a simple, noninvasive, technique that can efficiently reduce DNA fragmentation in infertile varicocele patients prior to ART.
精索静脉曲张患者的精液参数通常被怀疑表现出更高水平的异常,包括DNA片段化、活性氧(ROS)和凋亡标志物。几位作者研究了DNA片段化水平升高与辅助生殖技术(ART)结果之间的负相关关系。在本研究中,我们旨在评估磁性激活细胞分选(MACs)技术在ART前降低不育精索静脉曲张患者DNA片段化方面的潜在价值。从36例精索静脉曲张患者收集的精液样本通过密度梯度离心(DGC)制备。随后将每个样本分成两份。一份保持不变作为MACs前对照,而另一份进行MACs技术处理,以去除凋亡精子,作为MACs后测试。对对照和测试样本评估精子数量、活力和DNA片段化情况。与对照样本(80.97±7.74%)相比,MACs后样本的总精子活力没有有害降低(80.64±6.97%),而与MACs前对照(12.43±6.29%)相比,MACs后样本的精子DNA片段化显著降低(9.61±5.62%)(P<0.05)。可以得出结论,MACs技术是一种简单、无创的技术,可在ART前有效降低不育精索静脉曲张患者的DNA片段化。