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Fertility in men with Down syndrome: a case report
Mandakini Pradhan1, Ashwin Dalal, Faisal Khan
1Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India. mandakini@sgpgi.ac.in <mandakini@sgpgi.ac.in>
Fertility and Sterility
|November 11, 2006
Summary
Males with Down syndrome (DS) can be fertile, challenging previous assumptions of infertility. This case report confirms paternity in a father with nonmosaic DS, highlighting the need for reproductive counseling.
Area of Science:
- Reproductive Medicine
- Human Genetics
- Clinical Genetics
Background:
- Down syndrome (DS), a genetic disorder caused by trisomy 21, is often associated with male infertility.
- Previous literature suggests impaired spermatogenesis as the primary cause of infertility in males with DS.
Observation:
- A case report details a 26-year-old male with confirmed nonmosaic trisomy 21.
- Paternity was established through microsatellite marker analysis, confirming biological fatherhood.
Findings:
- A male with nonmosaic Down syndrome successfully fathered a child.
- Microsatellite marker analysis definitively proved paternity, contradicting the general assumption of infertility in such cases.
Implications:
- The findings challenge the universal belief of male infertility in Down syndrome.
- Clinicians should counsel postpubertal males with DS regarding reproductive potential and contraception.
- Factors beyond spermatogenesis, such as knowledge of sexual practices, may influence fertility outcomes.
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