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/al·pha2-mac·ro·glob·u·lin/ (al´fah mak´ro-glob″u-lin) α.


immunoglobulin M, an antibody protein (globulin) of molecular weight in the range of 1,000,000.

a glycoprotein that inhibits proteolytic enzymes. Increased levels are seen in diabetes mellitus and diseases of the liver and kidney.
References in periodicals archive ?
Characterization and immunological determination of the complex between prostate-specific antigen and alpha2-macroglobulin.
Chodorowska G, Wojnowska D, Juszkiewicz-Borowiec M: C-reactive protein and alpha2-macroglobulin plasma activity in medium-severe and severe psoriasis.
PSA exists in three major forms in serum: free PSA (f-PSA) and PSA complexed to the serine protease inhibitors alphal-antichymotrypsin (PSA-ACT) and alpha2-macroglobulin (PSA-AMG).