MC4R and obesity due to melanocortin 4 receptor deficiency: Out of the twenty SNPs involved in the present analysis, nine showed no significant association with any obesity- or WC-related phenotype in neither of the populations under investigation (namely rs10938397 (GNPDA2), rs1137101 (LEPR), rs1501299, rs2241766 (ADIPOQ), rs17782313 (MC4R), rs6265, rs925946 (BDNF), rs659366, and rs660339 (UCP2)).