期刊
ANGIOLOGY
卷 66, 期 9, 页码 867-874出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0003319714566863
关键词
antioxidant capacity; claudication; inflammation; peripheral artery disease
资金
- National Institute on Aging [R01-AG-24296, AG031085, AG038747]
- Oklahoma Center for the Advancement of Science and Technology
- General Clinical Research Center [M01-RR-14467]
- American Heart Association
- National Center for Complementary and Alternative Medicine [R01-AT006526]
- Ellison Medical Foundation
We determined whether exercise performance and lower extremity microcirculation were associated with endothelial cell inflammation, oxidative stress, and apoptosis and with circulating biomarkers of inflammation and antioxidant capacity in 160 patients with symptomatic peripheral artery disease (PAD). In a multivariate regression model for peak walking time, significant independent variables included ankle-brachial index (P < .001), age (P = .017), hydroxyl radical antioxidant capacity (P = .008), and endothelial cell nuclear factor K-light-chain-enhancer of activated B cells (NF-B) activity (P = .015). In multivariate analyses for time to minimum exercise calf muscle hemoglobin oxygen saturation (StO(2)), significant independent variables included endothelial cell NF-B activity (P = .043) and calf muscle StO(2) at rest (P = .007). Endothelial cell inflammation and circulating biomarkers of inflammation and antioxidant capacity were associated with exercise performance and microcirculation of the ischemic calf musculature during exercise. The clinical implication is that interventions designed to alleviate endothelial cell inflammation and circulating inflammatory biomarkers, such as antioxidant therapy, may improve exercise performance of symptomatic patients with PAD.
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