JOURNAL ARTICLE

Association of miR-146aC>G, miR-196a2T>C, and miR-499A>G polymorphisms with risk of premature ovarian failure in Korean women

HyungChul Rah, Young Joo Jeon, Sung Han Shim, Sun Hee Cha, Dong Hee Choi, Hwang Kwon, Ji Hyang Kim, Ji Eun Shin, Nam Keun Kim
Reproductive Sciences 2013, 20 (1): 60-8
22872486
We investigated whether microRNA (miRNA) polymorphisms (miR-146aC>G, miR-196a2T>C, and miR-499A>G) confer risk of premature ovarian failure (POF) in Korean women. DNA samples from 136 patients with POF and 234 controls were genotyped for the 3 miRNA single-nucleotide polymorphisms by polymerase chain reaction-restriction fragment length polymorphism. The miR-146aCG/miR-196a2TC combined genotype was less frequent in patients than in controls (P < .05), conferring less susceptibility. Using haplotype-based multifactor dimensionality reduction analysis, the C-C-A and G-T-A inferred haplotypes (miR-146a/miR-196a2/miR-499) were less frequent in patients, suggesting protective effects (P < .05 for each), whereas the C-T-A and G-C-A haplotypes were more frequent in patients (P < .05 for each). The C-T and G-C haplotypes (miR-146a/miR-196a2) were more frequent in patients, whereas the C-C and G-T haplotypes were less frequent in patients (P < .05 for each). However, none of the 3 miRNA polymorphisms alone was associated with POF risk. Our findings suggest that putative gene-gene interaction between miR-146 and miR-196a2 may be involved in POF development.

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