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Related Experiment Videos

Preconceptional sex selection: past, present, and future

A M Hossain1, S Barik, B Rizk

  • 1Department of Obstetrics and Gynecology, University of South Alabama, Mobile 36688, USA.

Archives of Andrology
|February 18, 1998
PubMed
Summary

Preconceptional sex selection aims to choose the sex of offspring. While flow cytometry offers sperm enrichment, reliable X and Y sperm separation for routine clinical use remains a future goal.

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Area of Science:

  • Reproductive Biology
  • Genetics
  • Animal Science

Background:

  • Preconceptional sex selection is a topic of significant interest and debate.
  • The potential medical and commercial benefits are often considered to outweigh ethical concerns.

Purpose of the Study:

  • To review current technologies for preconceptional sex selection.
  • To assess the feasibility and limitations of separating X- and Y-chromosome-bearing sperm.

Main Methods:

  • Review of existing literature on sperm separation techniques.
  • Discussion of flow cytometry, gradient columns, fluorescence in situ hybridization (FISH), and polymerase chain reaction (PCR).

Main Results:

  • Flow cytometry is the only method providing clinically significant sperm enrichment.

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  • Other methods show minimal enrichment, unlikely to impact birth sex ratios.
  • Concerns exist regarding DNA stains and UV light in flow cytometry.

    • Conclusions:

    • 100% pure X or Y sperm separation is not yet routinely achievable.
    • FISH and PCR are key for validating sex selection procedures.
    • Advancements suggest clinical application of sperm separation technology is likely in the near future.