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Macroglobulin
High molecular weight plasma globulin / From Wikipedia, the free encyclopedia
Macroglobulins are large globular proteins and are found in the blood and other body fluids. Various physiological processes, including immunity, coagulation, and chemical transport, rely on these proteins. A macroglobulin is a plasma globulin of high molecular weight.[1] Elevated levels of macroglobulins (macroglobulinemia) may cause manifestations of excess blood viscosity (as is the case for IgM antibodies in Waldenström macroglobulinemia) and/or precipitate within blood vessels when temperature drops (as in cryoglobulinaemia). Other macroglobulins include α2-macroglobulin, which is elevated in nephrotic syndrome, diabetes, severe burns, and other conditions, while a deficiency is associated with chronic obstructive pulmonary disease.
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