CCNL1 and type 2 diabetes mellitus: Due to the known associations between birth weight and adult type 2 diabetes and the fact that one of the ‘birth weight-lowering’ alleles (ADCY5) also appears to be a genetic determinant of glycemic traits, we also aimed to investigate possible associations of CCNL1 and ADCY5 genotypes with diabetes related intermediate-traits in addition to investigating the influence of these SNPs on anthropometric traits during longitudinal follow-up from birth to adulthood.