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How NOD-ing off leads to Crohn disease

Many patients with Crohn disease, an inflammatory bowel disorder, carry mutations in NOD2. The finding that NOD2 normally dampens Toll-like receptor 2–mediated inflammation may explain this association.

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Figure 1: Mutant NOD2 cannot block TLR2.

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O'Neill, L. How NOD-ing off leads to Crohn disease. Nat Immunol 5, 776–778 (2004). https://doi.org/10.1038/ni0804-776

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