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  • Title: The oxygen stress index and levels of circulating interleukin-10 and interleukin-6 in patients with chronic heart failure.
    Author: Wykretowicz A, Furmaniuk J, Smielecki J, Deskur-Smielecka E, Szczepanik A, Banaszak A, Wysocki H.
    Journal: Int J Cardiol; 2004 Apr; 94(2-3):283-7. PubMed ID: 15093994.
    Abstract:
    OBJECTIVES: We sought to study circulating levels of pro- and anti-inflammatory cytokines together with the oxygen stress index in patients with chronic heart failure (CHF). BACKGROUND: Patients with CHF exhibit elevated levels of inflammatory and anti-inflammatory cytokines but the relative level of these cytokines with the oxygen stress index have not been reported. METHODS: Twenty-two patients with CHF and 10 control subjects were studied. Plasma levels of IL-6 and IL-10 were determined and the oxygen stress index was evaluated by urine 8-iso-PGF2alpha estimations. RESULTS: Plasma levels of IL-6 and IL-10 in CHF patients were significantly higher than those observed in the control subjects. Patients with more advanced disease (higher NYHA class) showed higher concentrations of IL-10 and IL-6 than those with less serious disease. 8-iso-PGF2alpha urine concentration (and therefore the oxygen stress index) was significantly higher in patients with CHF in comparison with control subjects. IL-6 plasma levels, but not IL-10 concentrations, correlated significantly with 8-iso-PGF2alpha levels in urine. CONCLUSIONS: Inflammatory and anti-inflammatory cytokine levels, as well as the oxidative stress index, are increased in patients with chronic heart failure. Inflammatory cytokine IL-6, but not anti-inflammatory cytokine Il-10, levels correlated significantly with the oxygen stress index.
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