CCL4 and hearing loss disorder: Cisplatin-induced hearing loss was associated with increased levels of three circulating cytokines: M-CSF (OR: 1.04, 95% CI: 1.01–1.08, P = 0.010, FDR = 0.41); IL-2RA (OR: 1.03, 95% CI: 1.00–1.05, P = 0.044, FDR = 0.447); and MIP-1β (OR: 1.02, 95% CI: 1.00–1.04, P = 0.041, FDR = 0.447) (Fig. 4).