ArticleJournal of applied genetics2026
Prevalence and comparative analysis of Y chromosome microdeletions in recurrent pregnancy loss.
Article in Journal of applied genetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Recurrent pregnancy loss (RPL) is defined as the spontaneous loss of two or more pregnancies before reaching viability. Diagnosis for couples with RPL usually involves only the female partner. However, it is seen that male partners contribute equally to the occurrence of spontaneous abortions as the Y chromosome harbors several genes that control spermatogenesis and the quality of sperms. Three non-overlapping regions (AZFa, AZFb, AZFc) in the distal half of Y chromosome have been reported to be associated with spermatogenesis in males with normal karyotype. Microdeletions in these three regions have been identified in many male partners with repeated abortions. The STS regions of the Y chromosome are prone to self-recombination, making it susceptible to deletions, thereby leading to poor sperm quality and fetal implantation failure. The present study aimed to identify the frequency and type of microdeletions among male partners of RPL women. Analysis revealed nearly 76% of cases revealed microdeletions, whereas no deletions were observed among controls in Y chromosome, suggesting a strong link between RPL and microdeletion in the AZF regions of the Y chromosome in the male partner.
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