For instance, even though Grarup et al. [21] found no association between IGF2BP2 gene variants and T2D in Danish population, Groenewoud et al. [22] reported that expression of IGF2BP2 polymorphisms decreased glucose-stimulated insulin secretion in the first phase of diabetes development in Dutch and Germany’s population. The gene discussed is IGF2BP2; the disease is type 2 diabetes mellitus.