Abstract | OBJECTIVES: BACKGROUND: METHODS: Serum LOOH levels were measured and correlated with clinical events over a 3-year period in 634 patients with angiographic evidence of CAD. RESULTS: Baseline LOOH levels in the highest quartile were associated with hazard ratios of 3.24 (95% confidence interval [CI] 1.86 to 5.65; p = 0.0001) for nonfatal vascular events (n = 149), 1.80 (95% CI 1.13 to 2.88; p = 0.014) for major vascular procedures (n = 139), and 2.23 (95% CI 1.44 to 3.44; p = 0.0003) for all vascular events and procedures. Baseline LOOH levels correlated with serum levels of soluble intercellular adhesion molecule-1 (p = 0.001) and thiobarbituric acid reactive substances (p = 0.001) as well as the mean percent change in stenosis for large segments >50% stenosed (p = 0.048). A multivariate proportional hazards model, adjusted for traditional risk factors and inflammatory markers, showed an independent effect of LOOH on nonfatal vascular events, vascular procedures, and all events or procedures. Amlodipine treatment was associated with reduced cardiovascular events and changes in LOOH levels compared with placebo. CONCLUSIONS: Elevated LOOH levels were predictive of nonfatal vascular events and procedures in patients with stable CAD, independent of traditional risk factors and inflammatory markers.
|
Authors | Mary F Walter, Robert F Jacob, Rebekah E Bjork, Barrett Jeffers, Jan Buch, Yoshiko Mizuno, R Preston Mason, PREVENT Investigators |
Journal | Journal of the American College of Cardiology
(J Am Coll Cardiol)
Vol. 51
Issue 12
Pg. 1196-202
(Mar 25 2008)
ISSN: 1558-3597 [Electronic] United States |
PMID | 18355658
(Publication Type: Evaluation Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
|
Chemical References |
- Lipid Peroxides
- Hydrogen Peroxide
|
Topics |
- Adult
- Aged
- Aged, 80 and over
- Coronary Artery Disease
(blood, diagnosis)
- Endothelium, Vascular
(physiopathology)
- Female
- Humans
- Hydrogen Peroxide
(blood)
- Lipid Peroxidation
- Lipid Peroxides
(blood)
- Male
- Middle Aged
- Predictive Value of Tests
- Risk Factors
|