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Journal of Assisted Reproduction and Genetics

, Volume 21, Issue 4, pp 119–126 | Cite as

DNA Fragmentation, Mitochondrial Dysfunction and Chromosomal Aneuploidy in the Spermatozoa of Oligoasthenoteratozoospermic Males

  • Chung-Hsien Liu
  • Hui-Mei Tsao
  • Tzu-Chun Cheng
  • Hui-Mei Wu
  • Chun-Chia Huang
  • Chung-I Chen
  • David Pei-Cheng Lin
  • Maw-Sheng Lee
Article

Abstract

Purpose: This study determined the incidence of sperm nuclear DNA fragmentation, mitochondrial dysfunction, and chromosomal aneuploidy. The results were correlated with the semen analysis parameters and fertilization rates.

Methods: Semen samples from 10 men showing oligoasthenoteratozoospermia (OAT) and undergoing ICSI treatment were analyzed. Another semen samples from 10 men showing normozoospermia and undergoing IVF treatment were analyzed for comparison. The samples were prepared using a two-step discontinuous Percoll gradient (80%–50%) and analyzed using a Hamilton-Thorne Integrated Visual Optical System (IVOS) Sperm Analyzer. DNA fragmentation was detected with a terminal deoxynucleotidyl transferase-mediated dUTP nick end label (TUNEL) assay. Functional integrity of mitochondria was detected using an ApoalertTM Mitochondrial Membrane Sensor Kit. Chromosomal aneuploidy was assayed by fluorescence in situ hybridization.

Results: Higher sperm DNA fragmentation rate (18.8% vs. 2.8%), mitochondrial dysfunction rate (24.9% vs. 5.7%), and chromosomal aneuploidy rate (0.12% vs. 0.06%) were found in the oligoasthenoteratozoospermic patients in comparison with the normozoospermic patients.

Conclusions: The result indicates that spermatozoa from oligoasthenoteratozoospermic patients contain greater DNA fragmentation, mitochondrial dysfunction, and chromosomal aneuploidy. Because extremely poor semen samples are the indication for ICSI treatment, the result indicates the importance of selecting good quality sperm for oocyte injection.

Chromosomal aneuploidy DNA fragmentation ICSI mitochondrial dysfunction 

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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • Chung-Hsien Liu
    • 1
  • Hui-Mei Tsao
    • 2
  • Tzu-Chun Cheng
    • 2
    • 3
  • Hui-Mei Wu
    • 2
  • Chun-Chia Huang
    • 2
    • 3
  • Chung-I Chen
    • 3
  • David Pei-Cheng Lin
    • 3
  • Maw-Sheng Lee
    • 1
    • 2
    • 4
  1. 1.Institute of MedicineChung-Shan Medical UniversityTaichungTaiwan
  2. 2.Division of Infertility ClinicLee Women's HospitalTaichungTaiwan
  3. 3.Institute of BiochemistryChung-Shan Medical UniversityTaichungTaiwan
  4. 4.China Medical College School of MedicineTaichungTaiwan

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