期刊
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
卷 54, 期 14, 页码 1228-1237出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacc.2009.04.081
关键词
inflammatory biomarkers; ankle brachial index; peripheral arterial disease; genetics; atherosclerosis
Men and women with lower extremity peripheral arterial disease (PAD) have higher levels of inflammatory biomarkers than those without PAD. Observational studies link higher levels of several inflammatory biomarkers, including C-reactive protein (CRP), interleukin-6, tumor necrosis factor-alpha, and soluble adhesion molecules, to 1 or more of the following outcomes in people with PAD: more severe PAD, greater lower extremity functional impairment, more adverse calf skeletal muscle characteristics, greater declines in the ankle brachial index, greater declines in lower extremity performance, and higher rates of cardiovascular morbidity and mortality. Higher levels of inflammatory biomarkers are also associated with poorer outcomes after lower extremity revascularization, including graft restenosis and mortality. Increasing levels of CRP are associated with increased mortality and faster functional decline among people with PAD. Statin therapies reduce cardiovascular event rates and may improve walking performance in men and women with PAD, perhaps in part because statins can reduce inflammation. However, no clinical trials have been performed to establish whether therapies that specifically block or lower inflammatory biomarkers improve outcomes in patients with PAD. Family studies show that heritability of PAD ranges from approximately 20% to 45% after adjusting for atherosclerotic risk factors. A genetic marker for PAD has the potential to identify individuals at increased risk for PAD and may also uncover proteins that can help determine mechanisms of development of lower extremity atherosclerosis. However, a genetic marker for PAD has not been identified. (J Am Coll Cardiol 2009; 54: 1228-37) (C) 2009 by the American College of Cardiology Foundation
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