Connective Tissue Disease
A connective tissue disease is any disease that has the connective tissues of the body as a target of pathology. Connective tissue is any type of biological tissue with an extensive extracellular matrix that supports, binds together, and protects organs. These tissues form a framework, or matrix, for the body, and are composed of two major structural protein molecules: collagen and elastin. There are many different types of collagen protein in each of the body's tissues. Elastin has the capability of stretching and returning to its original length—like a spring or rubber band. Elastin is the major component of ligaments (tissues that attach bone to bone) and skin. In patients with connective tissue disease, it is common for collagen and elastin to become injured by inflammation. Many connective tissue diseases feature abnormal immune system activity with inflammation in tissues as a result of an immune system that is directed against one's own body tissues (autoimmunity).
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Some articles on connective tissue disease:
... It is possible to classify autoimmune diseases by corresponding type of hypersensitivity type II, type III, or type IV ... No type of autoimmune disease mimics type I hypersensitivity.) There is continuing debate about when a disease should be considered autoimmune, leading to different criteria such as ... I, II, III, IV Autoantibody Notes Acute disseminated encephalomyelitis (ADEM) Accepted Addison's disease interferon omega transglutaminase aromatic acid carboxylase GAD HAI 17 hydroxylase 21 hydroxylase ...
... cryptogenic fibrosing alveolitis, connective tissue disease, asbestosis, drug reactions) central (e.g ... cryptogenic fibrosing alveolitis, connective tissue disease, chronic eosinophilic pneumonia, bronchiolitis obliterans organizing pneumonia) lung volume increased (e.g ... fibrotic lung disease, chronic sarcoidosis, chronic extrinsic allergic alveolitis) Pleural effusions may occur with cancer, sarcoid, connective tissue diseases and ...
... In medicine, mixed connective tissue disease (also known as Sharp's syndrome), commonly abbreviated as MCTD, is an autoimmune disease, in which the body's ... It is sometimes equated with the term "Undifferentiated connective tissue disease",) but some sources specifically reject such assertions of equivalence ...
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