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Fibrosis is similar to the process of scarring, in that both involve stimulated fibroblasts laying down connective tissue, including collagen and glycosaminoglycans.The process is initiated when immune cells such as macrophages release soluble factors that stimulate fibroblasts.
Treatment options for idiopathic pulmonary fibrosis are very limited, since no current treatment has stopped the progression of the disease. Because of this, there is no evidence that any medication can significantly help this condition, despite ongoing research trials. Lung transplantation is the only therapeutic option available in severe cases.
Cardiac fibrosis is common in non-human great apes in human care. The term idiopathic myocardial fibrosis was coined to emphasize this disease is likely different from the above described forms of cardiac fibrosis in humans. The etiology is not known, though vitamin D deficiency is a potential suspected cause at least in chimpanzees. [31]
[1] [3] There are four key features of UIP including interstitial fibrosis in a 'patchwork pattern', interstitial scarring, honeycomb changes and fibroblast foci. [citation needed] Fibroblastic foci are dense collections of myofibroblasts and scar tissue and, together with honeycombing, are the main pathological findings that allow a diagnosis ...
Appearance of usual interstitial pneumonia (UIP) in a surgical lung biopsy at low magnification. The tissue is stained with hematoxylin (purple dye) and eosin (pink dye) to make it visible. The pink areas in this picture represent lung fibrosis (collagen stains pink). Note the "patchwork" (quilt-like) pattern of the fibrosis.
Pirfenidone, sold under the brand name Pirespa among others, is a medication used for the treatment of idiopathic pulmonary fibrosis.It works by reducing lung fibrosis through downregulation of the production of growth factors and procollagens I and II.
The fibroblasts are phenotypically modified, and the fibers they form are more stable, produce thicker bundles that progressively become less elastic. once the original loosely arranged fibrous tissue is replaced by the ongoing fibrosis, the movability of the oral tissues is reduced, there is loss of flexibility and reduced opening of the mouth.
However, the proliferation of fibroblasts and deposition of collagen is a secondary phenomenon, and the fibroblasts themselves are not part of the abnormal cell clone. [ citation needed ] In primary myelofibrosis, progressive scarring, or fibrosis , of the bone marrow occurs, for the reasons outlined above.
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