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  • Title: Association of miR-146a rs2910164 and miR-222 rs2858060 polymorphisms with the risk of polycystic ovary syndrome in Iranian women: A case-control study.
    Author: Hosseini AH, Kohan L, Aledavood A, Rostami S.
    Journal: Taiwan J Obstet Gynecol; 2017 Oct; 56(5):652-656. PubMed ID: 29037553.
    Abstract:
    OBJECTIVE: Today, many single nucleotide polymorphisms in microRNA genes are known to alter the microRNA expression levels or processing causing susceptibility of several human diseases. The present study aimed to investigate the association of microRNA-146a (rs2910164) and microRNA-222 (rs2858060) polymorphisms with susceptibility to polycystic ovary syndrome (PCOS) in an Iranian population. MATERIALS AND METHODS: This case-control study was performed on 205 patients with PCOS and 205 normal women as the control group. After DNA extraction, Tetra-amplification refractory mutation system polymerase chain reaction (T-ARMS-PCR) was used to detect the polymorphisms. The association between genotypes and the risk of PCOS was examined by odds ratios (OR) and 95% of confidence intervals (CIs). RESULTS: Our results showed that there are significant differences in CG genotype frequencies between case and control groups regarding miR-146a rs2910164 polymorphism (OR = 2.03, CI = 1.3-3, P = 0.001). In a dominant model for the C allele, CC + CG genotypes were associated with PCOS risk (OR = 2, 95% CI = 1.3-2.9, P = 0.001) and the C allele increased the risk of PCOS (OR = 1.6, 95% CI = 1.1-2.1, P = 0.004). Furthermore, a positive association was observed between miR-222 CG genotype and the risk of PCOS (OR = 2.2, 95% CI = 1.1-4.1, P = 0.02). These results were evident after adjustment for age and body mass index. CONCLUSION: The present results suggest that the miR-146a rs2910164 and miR-222 rs2858060 polymorphisms are associated with an increased risk of PCOS. Therefore, both polymorphisms could play an important role as a genetic risk factor for development of PCOS in the Iranian population.
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