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dc.contributor.authorAarsetøy, Reidun
dc.contributor.authorUeland, Thor
dc.contributor.authorAukrust, Pål
dc.contributor.authorMichelsen, Annika Elisabet
dc.contributor.authorLeon de la Fuente, Ricardo
dc.contributor.authorGrundt, Magnea Heidi Jonsdottir
dc.contributor.authorStaines, Harry
dc.contributor.authorNygård, Ottar Kjell
dc.contributor.authorNilsen, Dennis W.T.
dc.description.abstractBackground Complement activation has been associated with atherosclerosis, atherosclerotic plaque destabilization and increased risk of cardiovascular events. Complement component 7 (CC7) binds to the C5bC6 complex which is part of the terminal complement complex (TCC/C5b-9). High-sensitivity C-reactive protein (hsCRP) is a sensitive marker of systemic inflammation and may reflect the increased inflammatory state associated with cardiovascular disease. Aim To evaluate the associations between CC7 and total- and cardiac mortality in patients hospitalized with chest-pain of suspected coronary origin, and whether combining CC7 with hsCRP adds prognostic information. Methods Baseline levels of CC7 were related to 60-months survival in a prospective, observational study of 982 patients hospitalized with a suspected acute coronary syndrome (ACS) at 9 hospitals in Salta, Argentina. A cox regression model, adjusting for conventional cardiovascular risk factors, was fitted with all-cause mortality, cardiac death and sudden cardiac death (SCD) as the dependent variables. A similar Norwegian population of 871 patients was applied to test the reproducibility of results in relation to total death. Results At follow-up, 173 patients (17.7%) in the Argentinean cohort had died, of these 92 (9.4%) were classified as cardiac death and 59 (6.0%) as SCD. In the Norwegian population, a total of 254 patients (30%) died. In multivariable analysis, CC7 was significantly associated with 60-months all-cause mortality [hazard ratio (HR) 1.26 (95% confidence interval (CI), 1.07–1.47) and cardiac death [HR 1.28 (95% CI 1.02–1.60)], but not with SCD. CC7 was only weakly correlated with hsCRP (r = 0.10, p = 0.002), and there was no statistically significant interaction between the two biomarkers in relation to outcome. The significant association of CC7 with total death was reproduced in the Norwegian population. Conclusions CC7 was significantly associated with all-cause mortality and cardiac death at 60-months follow-up in chest-pain patients with suspected ACS.en_US
dc.publisherBioMed Centralen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleComplement component 7 is associated with total- and cardiac death in chest-pain patients with suspected acute coronary syndromeen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.source.journalBMC Cardiovascular Disordersen_US
dc.identifier.citationBMC Cardiovascular Disorders. 2021, 21, 496.en_US

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