acute phase proteins

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A group of proteins that are found in plasma at higher levels during acute inflammation. In particular C-reactive protein, orosomucoid, and serum amyloid A protein. A range of other proteins also increase in level, including mannose-binding protein, α1-antitrypsin, α2-macroglobulin, blood clotting factors, complement components, ferritin, ceruloplasmin, and haptoglobin. Other proteins may decrease in concentration (negative acute phase proteins).

Subjects: Medicine and Health — Chemistry.

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