关键词:
细胞间黏附分子
Framingham
遗传率
预测价值
心血管事件
全身炎症
队列研究
直线回归
临床因素
多元逐步回归
摘要:
Objectives We sought to determine the clinical factors and heritability associ ated with inflammation measured as circulating levels of soluble-intercellular adhesion molecule-1 (sICAM-1) in a community-based cohort. Background Several prospective studies indicate that circulating sICAM-1 is predictive of future cardiovascular events. However, in some studies this predictive value is lost af ter multivariable adjustment for traditional cardiovascular disease (CVD) risk f actors. We addressed the heritability of sICAM-1 and its relation to CVD risk f actors in a community-based cohort. Methods We examined 3,295 subjects from the Framingham Heart Study and measured sICAM-1 levels. We then used linear and st epwise multivariable regression to determine predictors or sICAM-1 levels. Resu lts In age-and gender-adjusted regression models, increased sICAM-1 levels were positively associated with age, total/highdensity lipopro tein cholesterol, systolic blood pressure, body mass index (BMI), blood glucose, diabetes, smoking, and prevalent CVD. In stepwise multivariable regression mode ls, sICAM-1 levels remained associated with age, female gender, total/high-den sity lipoprotein cholesterol ratio, BMI, blood glucose, smoking, and prevalent C VD. The residual heritability of sICAM-1 was 24%. Conclusions In addition to p revalent CVD, established CVD risk factors and non-traditional ones such as BMI were associated with systemic inflammation as determined by sICAM-1 levels. Th ere also is significant heritability of sICAM-1, which suggests a genetic compo nent to systemic inflammation.