FTO and obesity due to melanocortin 4 receptor deficiency: The findings regarding the association and the risk for obesity conferred by FTO rs9939609 gene polymorphism was comparable with the data reported by different association studies in children,8,9 therefore confirming this as an obesity susceptibility gene in children.40 Other research found a strong association of SNP rs17817449 with obesity,41 association that was not replicated in our study.