Distribution of plasma kallikrein between C-1 inactivator and alpha 2-macroglobulin in plasma utilizing a new assay for alpha 2-macroglobulin-kallikrein complexes.
نویسندگان
چکیده
منابع مشابه
Human Plasma Alpha 2-macroglobulin
Activation of plasma kallikrein arginine esterase activity by kaolin resulted in peak activity at 1 min of incubation and a 50% reduction in activity at 5 min in normal plasma, and 30% reduction in the plasma of patients with hereditary angioneurotic edema who lacked the C1 inactivator. The peak esterolytic activity was inhibited by soybean trypsin inhibitor whereas the 5 min activity was resis...
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Plasma thromboplastin antecedent (PTA, factor XI) is an important intermediate in the intrinsic coagulation system, and plasma kallikrein has been implicated as a mediator of the inflammatory process. Whereas their biologic activities are functionally distinct, their identity as separate entities in plasma has not been fully established, and the nature of their plasma inhibitors has not been co...
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Activation of the contact system has been documented in severe sepsis and hereditary angioedema, but a sensitive, specific, and quantitative assay for assessing the degree of involvement of this proteolytic enzyme cascade is not yet available. We have developed a quantitative sandwich enzyme-linked immunosorbent assay (ELISA) for the alpha 2-macroglobulin-kallikrein (alpha 2M-Kal) complex using...
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Plasma values of C reactive protein, alpha 1 proteinase inhibitor, alpha 2 macroglobulin, and complexed alpha 2 macroglobulin have been determined in serial samples from 27 patients with acute pancreatitis. Complexed alpha 2 macroglobulin was measured by a novel enzyme linked immunosorbent assay with a monoclonal antibody specific for the complexed form. Patients with severe illness had lower c...
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Healthy newborns have a very low risk of thrombosis. It has been suggested that this is partly due to the anticoagulant effect of alpha-2-macroglobulin (a2-M). This broad-spectrum protease binding glycoprotein is physiologically elevated in newborns over adult values and has been shown to complex generated alpha-thrombin. In our present study, we point out that a2-M also acts as a procoagulant ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1985
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)89258-4