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collagen disease:see autoimmune diseaseautoimmune disease,
any of a number of abnormal conditions caused when the body produces antibodies to its own substances. In rheumatoid arthritis, a group of antibody molecules called collectively RF, or rheumatoid factor, is complexed to the individual's own gamma globulin
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, any of a group of proteins found in skin, ligaments, tendons, bone and cartilage, and other connective tissue. Cells called fibroblasts form the various fibers in connective tissue in the body.
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collagen disease[′kä·lə·jən di‚zēz]
Any of various clinical syndromes characterized by widespread alterations of connective tissue, including inflammation and fibrinoid degeneration.