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Sperm DNA fragmentation and sex chromosome aneuploidy after swim-up versus density gradient centrifugation

  • Kim, Sung Woo (Department of Obstetrics and Gynecology, Seoul National University Hospital) ;
  • Jee, Byung Chul (Department of Obstetrics and Gynecology, Seoul National University College of Medicine) ;
  • Kim, Seul Ki (Department of Obstetrics and Gynecology, Seoul National University College of Medicine) ;
  • Kim, Seok Hyun (Department of Obstetrics and Gynecology, Seoul National University Hospital)
  • 투고 : 2017.03.20
  • 심사 : 2017.09.20
  • 발행 : 2017.12.31

초록

Objective: The aim of this study was to compare the efficacy of swim-up and density gradient centrifugation (DGC) for reducing the amount of sperm with fragmented DNA, sex chromosome aneuploidy, and abnormal chromatin structure. Methods: Semen samples were obtained from 18 healthy male partners who attended infertility clinics for infertility investigations and were processed with swim-up and DGC. The percentages of sperm cells with fragmented DNA measured by the sperm chromatin dispersion test, normal sex chromosomes assessed by fluorescence in situ hybridization, and abnormal chromatin structure identified by toluidine blue staining were examined. Results: The percentage of sperm cells with fragmented DNA was significantly lower in the swim-up fraction (9.7%, p= 0.001) than in the unprocessed fraction (27.0%), but not in the DGC fraction (27.8%, p= 0.098). The percentage of sperm cells with normal X or Y chromosomes was comparable in the three fractions. The percentage of sperm cells with abnormal chromatin structure significantly decreased after DGC (from 15.7% to 10.3%, p= 0.002). The swim-up method also tended to reduce the percentage of sperm cells with abnormal chromatin structure, but the difference was not significant (from 15.7% to 11.6%, p= 0.316). Conclusion: The swim-up method is superior for enriching genetically competent sperm.

키워드

참고문헌

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  2. Effect of Sperm DNA Fragmentation on Embryo Quality in Normal Responder Women in In Vitro Fertilization and Intracytoplasmic Sperm Injection vol.60, pp.5, 2019, https://doi.org/10.3349/ymj.2019.60.5.461
  3. Evaluation of normal morphology, DNA fragmentation, and hyaluronic acid binding ability of human spermatozoa after using four different commercial media for density gradient centrifugation vol.46, pp.1, 2017, https://doi.org/10.5653/cerm.2019.46.1.8
  4. Mammalian spermatozoa and cumulus cells bind to a 3D model generated by recombinant zona pellucida protein-coated beads vol.9, pp.1, 2019, https://doi.org/10.1038/s41598-019-54501-7
  5. The Author Reply: Effect of Sperm DNA Fragmentation on Embryo Quality in Normal Responder Women in IVF and ICSI vol.61, pp.11, 2020, https://doi.org/10.3349/ymj.2020.61.11.988
  6. Best laboratory practices and therapeutic interventions to reduce sperm DNA damage vol.53, pp.2, 2021, https://doi.org/10.1111/and.13736
  7. Differential impact of four sperm preparation techniques on sperm motility, morphology, DNA fragmentation, acrosome status, oxidative stress, and mitochondrial activity: A prospective study vol.9, pp.5, 2017, https://doi.org/10.1111/andr.13038