Multiple inflammatory biomarkers in relation to cardiovascular events and mortality in the community.

Schnabel RB, Yin X, Larson MG, Yamamoto JF, Fontes JD, Kathiresan S, Rong J, Levy D, Keaney JF, Wang TJ, Murabito JM, Vasan RS, Benjamin EJ
Arterioscler Thromb Vasc Biol. 2013 33 (7): 1728-33

PMID: 23640499 · PMCID: PMC3753537 · DOI:10.1161/ATVBAHA.112.301174

OBJECTIVE - Evidence suggests that chronic low-grade inflammation and oxidative stress are related to cardiovascular disease (CVD) and mortality.

APPROACH AND RESULTS - We examined 11 established and novel biomarkers representing inflammation and oxidative stress (C-reactive protein, fibrinogen, interleukin-6, intercellular adhesion molecule-1, lipoprotein-associated phospholipase-A2 [mass and activity], monocyte chemoattractant protein-1, myeloperoxidase, CD40 ligand, P-selectin, and tumor necrosis factor receptor II [TNFRII]) in relation to incident major CVD and mortality in the community. We studied 3035 participants (mean age, 61 ± 9 years; 53% women). During follow-up (median, 8.9 years), 253 participants experienced a CVD event and 343 died. C-reactive protein (hazard ratio [HR] reported per SD ln-transformed biomarker, 1.18; 95% confidence interval [CI], 1.02-1.35; nominal P=0.02) and TNFRII (HR, 1.15; 95% CI, 1.01-1.32; nominal P=0.04) were retained in multivariable-adjusted models for major CVD, but were not significant after adjustment for multiple testing. The biomarkers related to mortality were TNFRII (HR, 1.33; 95% CI, 1.19-1.49; P<0.0001), ICAM-1 (HR, 1.24; 95% CI, 1.12-1.37; P<0.0001), and interleukin-6 (HR, 1.25; 95% CI, 1.12-1.39; P<0.0001). The addition of these markers to the model, including traditional risk factors, increased discrimination and reclassification for risk of death (P<0.0001), but not for CVD.

CONCLUSIONS - Of 11 inflammatory biomarkers tumor necrosis factor receptor II was related to cardiovascular disease and mortality in the Framingham Heart Study. The combination of TNFRII with C-reactive protein in relation to CVD and with interleukin-6 to mortality increased the predictive ability in addition to CVD risk factors for total mortality but not for incident CVD.

MeSH Terms (24)

Aged Biomarkers C-Reactive Protein Cardiovascular Diseases Disease-Free Survival Female Health Surveys Humans Incidence Inflammation Inflammation Mediators Intercellular Adhesion Molecule-1 Interleukin-6 Male Massachusetts Middle Aged Multivariate Analysis Principal Component Analysis Prognosis Proportional Hazards Models Receptors, Tumor Necrosis Factor, Type II Risk Assessment Risk Factors Time Factors

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