The impact of MIR196A2 and MIR423 genes polymorphisms on the development of type 2 diabetes mellitus in a sample of the Iraqi population

Purpose

Micro-RNAs, play a significant role in regulating essential physiological processes by controlling post-transcriptional gene expression. Several disorders have been linked to variations in the miRNA genes that generate sequences of mature micro-RNA. The current research aims to determine if the genetic variations rs6505162; C > A in the MIR423 gene and rs11614913; T > C in the MIR196A2 gene are associated with type 2 diabetes mellitus (T2DM).

Method

The tetra-primers amplification refractory mutation system-polymerase chain reaction technique was used to identify these two single nucleotide polymorphisms (SNPs).

Results

The allele frequency of MIR423- rs6505162; C > A SNP was 0.47 for the wild allele (A) and 0.53 for the mutant allele (C) in the control group, while in the patients group the frequency was 0.54 and 0.46 for the A and C alleles respectively. No association was discovered between this SNP and T2DM (O.R = 0.75, P = 0.47 for AC genotype, and O.R = 0.53, P = 0.15 for CC genotype). The wild type of MIR196A2 rs11614913; C > T SNP showed a 100% prevalence in the study subjects, thus this SNP has no association with T2DM as well.

Conclusion

The current investigation demonstrates that the incidence of T2DM is not associated with the MIR196A2-rs11614913; C > T, and MIR423-rs6505162; C > A SNPs.