TCF7L2 and cystic fibrosis-related diabetes: Blackman et al. [64] demonstrated in a study that the presence of allelic variants of the genes TCF7L2, IGF2BP2 (insulin-like growth factor 2 mRNA binding protein 2), SLC26A9, CDKN2A/B (cyclin-dependent kinase inhibitor 2A and cyclin-dependent kinase inhibitor 2B), and CDKAL1 (CDK5 regulatory subunit-associated protein 1 like 1) have been corelated with the occurrence of CFRD [64].