Several other molecules are also used as inflammatory biomarkers that are associated with obesity, including the chemokine interleukin-8 (IL-8) [13], and procalcitonin (PCT) [14], the peptide precursor of the calcitonin hormone, which are used traditionally as inflammatory biomarkers in bacterial infections including sepsis [15]. The gene discussed is CXCL8; the disease is obesity due to melanocortin 4 receptor deficiency.