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  • Title: Increased level of advanced oxidation products (AOPP) as a marker of oxidative stress in patients with acute coronary syndrome.
    Author: Skvarilová M, Bulava A, Stejskal D, Adamovská S, Bartek J.
    Journal: Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub; 2005 Jun; 149(1):83-7. PubMed ID: 16170393.
    Abstract:
    Oxidative stress impairs endothelial function and may play an important role in the pathogenesis of acute cardiovascular diseases. Advanced oxidation protein products (AOPP) were proposed as one of the possible markers of oxidative injury, which originates under oxidative and carbonyl stress and increase global inflammatory activity. The present study was undertaken to compare AOPP concentrations in a control group of healthy individuals without ICHS (I), patients with stable angina pectoris (II), patients with acute coronary syndrome over 48 hours without ST elevations (III), and patients with ST elevation myocardial infarction (IV). Coronaronary angiography, risk factors and anamnestic data were analyzed. We examined 73 probands with signs of myocardial ischemia, mean age of 61.5 years (64% males) subjected to coronarography and 21 healthy individuals. No significant difference was found between venous blood and coronary samples, or between infarction and non-infarction arteries in the group IV. AOPP concentrations in healthy individuals in the group I (82.9 +/- 29.3 mmol/l) did not differ significantly from patients in group II (89.6 +/- 26.7 mmol/l) and group III (112.3 +/- 54.6 mmol/l). A significant difference in AOPP values was found between the groups I and IV, and between the groups II and IV (82.9 +/- 29.3 mmol/l vs. 125.8 +/- 101 mmol/l, p = 0.02, and 89.6 +/- 26.7 mmol/l vs. 125.8 +/- 101 mmol/l, p = 0.02). No correlations were found between AOPP and body mass index (BMI), nicotinism, left ventricular ejection fraction, parameters of glucose and lipid metabolism. ROC analysis revealed that AOPP concentrations of 89 mmol/l had 64% sensitivity and 71% specificity for revealing an acute coronary syndrome (AUC 0.65, 95% CI 0.55-0.80). AOPP are significantly increased in patients with acute coronary syndromes with ST segment elevation, but also tend to increase in patients with non-ST elevation myocardial infarction. Our observations suggest that AOPP may be used as a marker of oxidative stress and as a prognostic factor for severe forms of cardiovascular disease. A cut-off value of 89 mmol/l can be used with 64% sensitivity and 71% specificity for revealing acute coronary syndrome.
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