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Polymorphism of the complement 5 gene and cardiovascular outcome in patients with atherosclerosis.
MedLine Citation:
PMID:  22452399     Owner:  NLM     Status:  Publisher    
Eur J Clin Invest 2012 ABSTRACT: Background  Humoral mediators of inflammation, in particular the complement system, have been described to play an important role in atherogenesis. Previously, we found a single-nucleotide polymorphism (SNP) in the complement 5 gene (C5 rs17611, A>G) independently associated with stroke. Up to now, the impact of C5 rs17611 on the progression of atherosclerosis and cardiovascular outcome in patients with asymptomatic atherosclerosis was unclear. Materials and Methods  We investigated C5 rs17611 in a cohort of 1065 consecutive patients with asymptomatic carotid atherosclerosis. All patients were prospectively followed for the progression of carotid atherosclerosis and the development of a first major cardiovascular event (MACE), respectively. Results  Three hundred and thirty-seven patients (31·6%) experienced a MACE during a median follow-up of 3·0 years. The homozygous GG genotype of the C5 rs17611 was significantly associated with adverse cardiovascular outcome (adjusted HR: 1·36 [95% CI, 1·07-1·73]; P = 0·01). After stratification for sex, C5 rs17611 CC was found to be an independent risk factor for MACE in men (HR 1·50 [95% CI, 1·12-1·83]). No association of C5 rs17611 with progression of carotid stenosis, observed in 93 (8·7%) patients, was detectable. Performance of ELISA indicated a significant association of the C5 rs17611 variant with C5a plasma levels. Conclusion  The C5 rs17611 GG genotype is associated with increased C5a plasma levels and represents a risk factor for adverse cardiovascular outcome in male patients with carotid atherosclerosis.
Matthias Hoke; Walter Speidl; Martin Schillinger; Erich Minar; Sonja Zehetmayer; Michael Schönherr; Oswald Wagner; Christine Mannhalter
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-2
Journal Detail:
Title:  European journal of clinical investigation     Volume:  -     ISSN:  1365-2362     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0245331     Medline TA:  Eur J Clin Invest     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. European Journal of Clinical Investigation © 2012 Stichting European Society for Clinical Investigation Journal Foundation.
Department of Internal Medicine II, Division of Angiology Department of Internal Medicine II, Division of Cardiology Institute of Medical Statistics Department of Laboratory Medicine, Medical University Vienna, Vienna, Austria.
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