TERC and type 2 diabetes mellitus: A case-control candidate gene association study conducted by Sethi et al. evaluated various telomere maintenance gene variants, demonstrating a significant association between T2DM and five gene variants including the OBFC1, TERF2, TERC/LRRC31, TERC/MYNN, and CSNK2A2, with no significant correlation with the age of participants (Sethi et al., 2020).