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  • Title: Relationship between sperm chromatin status and ICSI outcome in men with obstructive azoospermia and unexplained infertile normozoospermia.
    Author: Sadeghi MR, Lakpour N, Heidari-Vala H, Hodjat M, Amirjannati N, Hossaini Jadda H, Binaafar S, Akhondi MM.
    Journal: Rom J Morphol Embryol; 2011; 52(2):645-51. PubMed ID: 21655656.
    Abstract:
    This study was done to evaluate the effect of sperm source on chromatin integrity and ICSI outcomes. One hundred and thirteen samples containing epididymal aspirates of 57 obstructive azoospermic men and 56-ejaculated semen of normozoospermic men were included in this study. Sperm chromatin status was evaluated by Chromomycin A3 (CMA3), Aniline Blue (AB) and Toluidine Blue (TB). Fertilization rate and embryo quality were recorded. In epididymal group the percentage of sperms stained with AB, CMA3 and TB were significantly higher compared to ejaculate group while fertilization rate (60.6% vs. 74.04%) was significantly lower. However, embryo quality was not significantly different between two groups. In addition, abnormal sperm chromatin condensation and DNA fragmentation were not correlated with fertilization rate and embryo quality. Our results highlight the role of epididymis in sperm maturation and confirm that ICSI using ejaculated sperm is the gold standard for treatment of infertile men.
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