CCL4 and ulcerative colitis: Moreover, we observed suggestive associations between β-NGF and MIP-1β with the risk of Crohn’s disease (OR: 0.71, 95% CI: 0.52-0.98, P = 0.039) and ulcerative colitis (OR: 1.08, 95% CI: 1.01-1.15, P= 0.019).