TNF and rheumatoid arthritis: The story line: TNF-alpha (PubMed ID: 20108015) →NF-kappa B (PubMed ID: 9779924) →NF-kappa B (PubMed ID: 2691328) →Tumor Necrosis Factor-alpha (PubMed ID: 19706766) →JunD (PubMed ID: 11526502) starts with rheumatoid arthritis (an inflammatory response) and the presence of inclusion body myositis (IBM), an inflammatory muscle disease.