ABCB1 and obesity due to melanocortin 4 receptor deficiency: There was no association of overweight/obesity with HTR2C –759C>T polymorphism (Bonferroni corrected p-value = 0.48) (Table 3) or with ABCB1 1236C>T, ABCB1 2677G>T/A, and ABCB1 3435C>T polymorphisms (Bonferroni corrected p-value = 0.08, 0.08, and 0.36, respectively) (Table 4).