Recurrent miscarriage and micro-RNA among north Indian women.

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This study found that miR-499 A > G and miR-196a T > C variants are significantly associated with recurrent miscarriage in North Indian women, while no link was established for endometriosis or adenomyosis.

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This study investigated the association between four specific microRNA polymorphisms and recurrent miscarriage in a cohort of 200 North Indian women experiencing at least three unexplained losses before the 20th week of gestation, compared against 300 fertile controls. Genotyping revealed that variant alleles for miR-499 A > G were significantly associated with an increased risk of recurrent miscarriage, while allelic variants in miR-196a T > C also demonstrated a susceptible effect. The authors note that these genetic variations may influence cellular processes such as apoptosis and inflammation, potentially contributing to pregnancy loss mechanisms. Relevance to endometriosis: listed as one indication for GnRH antagonists, though the paper's main focus is uterine fibroids.

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Abstract

Micro-RNAs (miRNAs) regulate diverse cellular processes such as cell differentiation, proliferation and apoptosis. Mutation in miRNAs results in various pathological conditions such as inflammation, viral infections, neurodegeneration, autoimmunity, and so on. We have evaluated the association of miR-146aC > G (rs2910164), miR-149T > C (rs2292832), miR-196a2T > C (rs11614913), and miR-499A > G (rs3746444) among patients with recurrent miscarriage (RM) and controls from North India. All the 200 patients with RM reported to experience at least 3 unexplained miscarriages before 20th week of gestation. Three hundred fertile women with no history of RMs were taken as controls. Both patients and controls were genotyped by the polymerase chain reaction amplification followed by restriction fragment length polymorphism. Variant alleles and genotypes of miR-499 A > G (Single Nucleotide Polymorphism Database [dbSNP] ID rs3746444) were found to be significant risks associated with patients having RM (odds ratio [OR] = 1.98; 95% confidence interval [CI] = 1.40-2.81; P value = .0001) and controls (OR = 3.64; 95% CI = 1.33-9.94; P value = .0109). A significant susceptible effect was found at allelic level in miR-196aT > C (dbSNP ID rs11614913) and miR-499 A > G (dbSNP ID rs3746444).
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Abstract

Micro-RNAs (miRNAs) regulate diverse cellular processes such as cell differentiation, proliferation and apoptosis. Mutation in miRNAs results in various pathological conditions such as inflammation, viral infections, neurodegeneration, autoimmunity, and so on. We have evaluated the association of miR-146aC > G (rs2910164), miR-149T > C (rs2292832), miR-196a2T > C (rs11614913), and miR-499A > G (rs3746444) among patients with recurrent miscarriage (RM) and controls from North India. All the 200 patients with RM reported to experience at least 3 unexplained miscarriages before 20th week of gestation. Three hundred fertile women with no history of RMs were taken as controls. Both patients and controls were genotyped by the polymerase chain reaction amplification followed by restriction fragment length polymorphism. Variant alleles and genotypes of miR-499 A > G (Single Nucleotide Polymorphism Database [dbSNP] ID rs3746444) were found to be significant risks associated with patients having RM (odds ratio [OR] = 1.98; 95% confidence interval [CI] = 1.40–2.81; P value = .0001) and controls (OR = 3.64; 95% CI = 1.33–9.94; P value = .0109). A significant susceptible effect was found at allelic level in miR-196aT > C (dbSNP ID rs11614913) and miR-499 A > G (dbSNP ID rs3746444). Similar content being viewed by others

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Author information Authors and Affiliations Corresponding author Rights and permissions About this article Cite this article Parveen, F., Agrawal, S. Recurrent Miscarriage and Micro-RNA Among North Indian Women. Reprod. Sci. 22, 410–415 (2015). https://doi.org/10.1177/1933719114529376 Published: Issue date: DOI: https://doi.org/10.1177/1933719114529376

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