Eight loci such as UDP-galactose-4-epimerase (GALE), MAP kinase activating death domain (MADD), PR/SET domain 16 (PRDM16), peroxidasin (PXDN), HID1 domain containing (HID1), BCAT1, C-X-C motif chemokine ligand 10 (CxCl10), and phosphoenolpyruvate carboxykinase 2 (PCK2) were associated with the risk of obesity [72]. This evidence concerns the gene PXDN and obesity due to melanocortin 4 receptor deficiency.