Shared genetics between nonobstructive azoospermia and primary ovarian insufficiency

Area of Science:

• Genetics
• Reproductive Biology
• Human Physiology

Background:

• Primary ovarian insufficiency (POI) and non-obstructive azoospermia (NOA) are characterized by early gametogenesis failure.
• Oogenesis and spermatogenesis share conserved meiotic steps, suggesting potential shared genetic underpinnings.

Purpose of the Study:

• To systematically review genetic mutations implicated in both POI and NOA phenotypes.
• To explore the shared genetic causes of gametogenesis failure in males and females.

Main Methods:

• A comprehensive PubMed literature review was performed from January 2000 to October 2020.
• Studies included human cases of POI or NOA linked to specific genetic mutations.

Main Results:

• 33 papers identified 10 genes associated with both NOA and POI.
• All identified genes play crucial roles in meiosis I processes.

Conclusions:

• Mutations in meiosis I genes are potential causes for both POI and NOA.
• Shared genotypes for these distinct phenotypes suggest early gametogenesis errors.
• Identifying these links aids in recognizing individuals at risk for gonadal failure and informs clinical genetic counseling.