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During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
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Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects
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Does sperm DNA fragmentation correlate with semen parameters?

Minh Tam Le1,2, Tam An Thi Nguyen2, Hiep Tuyet Thi Nguyen3

  • 1Department of OBGYN Hue University of Medicine and Pharmacy Hue University Hue Vietnam.

Reproductive Medicine and Biology
|October 15, 2019
PubMed
Summary
This summary is machine-generated.

Sperm DNA fragmentation index (DFI) shows weak correlation with routine semen analysis. Additional sperm DNA integrity testing is recommended for male fertility evaluation.

Keywords:
DNA fragmentationchromatininfertilitysemen analysisspermatozoa

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Area of Science:

  • Reproductive Medicine
  • Andrology
  • Sperm Biology

Background:

  • Routine semen analysis is standard for male fertility assessment.
  • Sperm DNA integrity is increasingly recognized as a crucial factor in reproductive outcomes.
  • The relationship between conventional semen parameters and sperm DNA damage requires further clarification.

Purpose of the Study:

  • To investigate the association between sperm quality assessed by routine semen analysis and sperm DNA integrity.
  • To determine the correlation between the sperm DNA fragmentation index (DFI) and standard semen parameters.

Main Methods:

  • A cross-sectional study involving 318 men from infertile couples.
  • Semen parameters were analyzed, and sperm DNA fragmentation index (DFI) was measured using the sperm chromatin dispersion (SCD) assay.
  • Spearman's rank correlation coefficient was used to analyze correlations between DFI and semen parameters.

Main Results:

  • DFI showed a significant positive correlation with abnormal head morphology (ρ = .202, P = .0003).
  • DFI exhibited a weak negative correlation with progressive motility (ρ = -.168, P = .0027).
  • DFI was associated with male age, smoking, and alcohol consumption (P < .05).

Conclusions:

  • Sperm DNA fragmentation index (DFI) is not strongly correlated with conventional semen parameters.
  • Sperm DNA fragmentation assay should be considered an additional diagnostic tool in male fertility investigations.
  • Further research may elucidate the clinical utility of DFI in predicting fertility outcomes.