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Genetics of human sperm

R H Martin1

  • 1Department of Medical Genetics, University of Calgary, Canada.

Journal of Assisted Reproduction and Genetics
|May 30, 1998
PubMed
Summary
This summary is machine-generated.

Sperm chromosome abnormalities were analyzed using fluorescence in situ hybridization. Infertile men showed a significant increase in aneuploid sperm, indicating potential risks associated with infertility.

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Area of Science:

  • Reproductive Biology
  • Human Genetics
  • Cytogenetics

Background:

  • Sperm chromosome abnormalities can impact reproductive outcomes.
  • Assessing aneuploidy frequencies is crucial for understanding male fertility.
  • Fluorescence in situ hybridization (FISH) is a key technique in cytogenetic analysis.

Purpose of the Study:

  • To determine the frequency and distribution of sperm chromosome abnormalities in normal men.
  • To investigate the effect of donor age on sperm aneuploidy.
  • To assess the risk of aneuploid sperm in chemotherapy and infertility patients.

Main Methods:

  • Multicolor fluorescence in situ hybridization (FISH) was used.
  • Aneuploidy frequencies for specific chromosomes (1-21, X, Y) were assessed.

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  • Diploid sperm frequencies and sex ratios were analyzed.

    • Main Results:

    • Frequencies for chromosome 21 and sex chromosomes were elevated.
    • YY disomy was the only significant paternal age effect observed.
    • Infertility patients showed increased disomy for chromosomes 1, 13, 21, and XY.

    Conclusions:

    • Multicolor FISH enables comparative analysis of sperm from different male populations.
    • Infertile patients exhibit a significantly higher frequency of aneuploid sperm.
    • This highlights a potential link between infertility and sperm chromosome abnormalities.