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Plasma Concentrations of High Molecular Weight Kininogen and Prekallikrein and Venous Thromboembolism Incidence in the General Population.


ABSTRACT: The kallikrein/kinin system, an intravascular biochemical pathway that includes several proteins involved in the contact activation system of coagulation, renin-angiotensin activation and inflammation, may or may not play a role in venous thromboembolism (VTE) occurrence. Within a large prospective population-based study in the United States, we conducted a nested case-cohort study to test the hypothesis that higher plasma levels of high molecular weight kininogen (HK) or prekallikrein are associated with greater VTE incidence. We related baseline enzyme-linked immunosorbent assay measures of HK and prekallikrein in 1993 to 1995 to incidence VTE of the lower extremity (n?=?612) through 2015 (mean follow-up?=?18 years). We found no evidence that plasma HK or prekallikrein was associated positively with incident VTE. HK, in fact, was associated inversely and significantly with VTE in most proportional hazards regression models. For example, the hazard ratio of VTE per standard deviation higher HK concentration was 0.88 (95% confidence interval?=?0.81, 0.97), after adjustment for several VTE risk factors. Our findings suggest that plasma levels of these factors do not determine the risk of VTE in the general population.

SUBMITTER: Folsom AR 

PROVIDER: S-EPMC6499653 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Plasma Concentrations of High Molecular Weight Kininogen and Prekallikrein and Venous Thromboembolism Incidence in the General Population.

Folsom Aaron R AR   Tang Weihong W   Basu Saonli S   Misialek Jeffrey R JR   Couper David D   Heckbert Susan R SR   Cushman Mary M  

Thrombosis and haemostasis 20190219 5


The kallikrein/kinin system, an intravascular biochemical pathway that includes several proteins involved in the contact activation system of coagulation, renin-angiotensin activation and inflammation, may or may not play a role in venous thromboembolism (VTE) occurrence. Within a large prospective population-based study in the United States, we conducted a nested case-cohort study to test the hypothesis that higher plasma levels of high molecular weight kininogen (HK) or prekallikrein are assoc  ...[more]

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