CXCL5 and obesity due to melanocortin 4 receptor deficiency: Epithelial neutrophil activator-78 (ENA-78), a key leukocytic chemokine that is both a neutrophil attractor and activator, has been implicated in many diseases with an inflammatory component (e.g., obesity, diabetes, subclinical atherosclerosis, acute coronary syndromes)[23-32].