DTL cytokines which correlated significantly with the degree of lung disease (OI) included IL-1RA (r = 0.54), IL-6 (r = 0.53), IP-10 (r = 0.67), LIF (r = 0.52), MCP-1 (r = 0.66) and SDF-1α (r = 0.52) (Fig. 3). Here, IL6 is linked to lung disorder.