Patients with cachexia had significantly higher levels of fatty acid-binding protein 3 (FABP3), follistatin-like 1 protein (FSTL−1), interleukin 6 (IL 6), and interleukin 8 (IL 8), while leptin concentrations in the peripheral blood were significantly lower (Figure 1). This evidence concerns the gene CXCL8 and Cachexia.