The association between gene polymorphisms of telomerase reverse transcriptase (TERT) variant rs2736100 and the risk of T2DM in the Iraqi population was investigated in a case-control study by Alwan et al. The study findings indicated that the frequency of homozygous genotypes was higher in T2DM patients compared to control group participants, however, the heterozygous genotype was less frequent in T2DM patients. This evidence concerns the gene TERT and type 2 diabetes mellitus.