The Genetics of Female and Male Infertility

Area of Science:

• Reproductive Medicine
• Human Genetics

Background:

• Infertility affects approximately 17% of couples globally.
• Causes of infertility can be attributed to male, female, or combined factors.
• The molecular basis of infertility is increasingly understood through genetic research.

Purpose of the Study:

• To review the role of genetic analysis in the diagnostic evaluation of infertility.
• To highlight specific genetic tests indicated for male and female infertility.
• To discuss the implications of genetic findings for treatment and family counseling.

Main Methods:

• Selective literature search of pertinent publications.
• Review of clinical diagnostic evaluations for infertile couples.
• Analysis of genetic testing strategies based on clinical presentation.

Main Results:

• Genetic analysis is indicated in specific infertility cases, such as premature ovarian insufficiency (FMR1 gene, chromosomal analysis) and suspected congenital adrenal hyperplasia (CYP21A2 gene).
• In males, semen analysis findings guide genetic testing for conditions like Klinefelter syndrome and Y-chromosomal azoospermia factor deletions.
• Gene panel analysis can identify causes of hypogonadotropic hypogonadism, premature ovarian insufficiency, and spermatogenesis disturbances, informing sperm retrieval success and oocyte cryopreservation options.

Conclusions:

• Genetic investigations are vital for diagnosing infertility and understanding disease patterns.
• Genetic findings impact treatment strategies for infertile couples.
• Genetic analysis has implications for the offspring and other family members, necessitating comprehensive genetic counseling.