Moreover, in a genome-wide association study in 286 Mexican Americans with type 2 diabetes, Fu et al. reported that CAMK4 (calcium/calmodulin-dependent protein kinase IV) rs2300782 and FMN1 (formin 1) gene SNP rs10519765 were associated with severe diabetic retinopathy (Fu et al., 2010). Here, CAMK4 is linked to type 2 diabetes mellitus.