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Clinical correlates, heritability, and genetic linkage of circulating CD40 ligand in the Framingham Offspring Study.


ABSTRACT:

Background

The CD40 receptor and its ligand (CD40L) are known to modulate both inflammation and thrombosis-2 processes important for the development and clinical expression of atherosclerosis. Circulating soluble CD40L (sCD40L) concentration predicts cardiovascular risk in selected patient samples. The purpose of this study was to determine the predictors of sCD40L in a large, community-based sample.

Methods

We determined both serum and plasma sCD40L concentration in 3,259 participants (54% women) from the Framingham Offspring Study.

Results

In multivariable models, advancing age was the only consistent (inverse) correlate of both serum and plasma sCD40L concentration. Overall, the variability explained by clinical covariates was very low for both measurements of sCD40L; with values of only 1.4% and 2.7% for serum and plasma, respectively. We observed that genetic factors accounted for a modest (12% serum; 14% plasma) amount of the adjusted variability in sCD40L.

Conclusions

Circulating sCD40L concentration was poorly associated with known cardiovascular disease (CVD) risk factors and was modestly heritable. Determining if either serum or plasma sCD40L are predictive of CVD risk in the community will require longitudinal follow-up.

SUBMITTER: Keaney JF 

PROVIDER: S-EPMC2613323 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature

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Publications

Clinical correlates, heritability, and genetic linkage of circulating CD40 ligand in the Framingham Offspring Study.

Keaney John F JF   Lipinska Izabella I   Larson Martin G MG   Dupuis Josée J   Freedman Jane E JE   Hamburg Naomi M NM   Massaro Joseph M JM   Rong Jian J   Sutherland Patrice P   Vita Joseph A JA   Vasan Ramachandran S RS   Benjamin Emelia J EJ  

American heart journal 20081002 5


<h4>Background</h4>The CD40 receptor and its ligand (CD40L) are known to modulate both inflammation and thrombosis-2 processes important for the development and clinical expression of atherosclerosis. Circulating soluble CD40L (sCD40L) concentration predicts cardiovascular risk in selected patient samples. The purpose of this study was to determine the predictors of sCD40L in a large, community-based sample.<h4>Methods</h4>We determined both serum and plasma sCD40L concentration in 3,259 partici  ...[more]

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