Document Detail


Interleukin-18 among atrial fibrillation patients in the absence of structural heart disease.
MedLine Citation:
PMID:  20833691     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
AIMS: Inflammation plays a role in the genesis and perpetuation of atrial fibrillation (AF). Interleukin (IL)-18 is a pleiotropic proinflammatory cytokine with a central role in the inflammatory cascade. We hypothesize that the circulating IL-18 concentration is elevated in AF patients.
METHODS AND RESULTS: In a case-control study design, 56 cases with AF and 26 controls were enrolled. All AF cases were categorized into paroxysmal and persistent AF or lone AF and AF with hypertension. Circulating levels of IL-18, tumour necrosis factor-α, high-sensitivity C-reactive protein, matrix metalloproteinase (MMP)-9, and tissue inhibitor of MMP-1 were measured. In adjusted analyses, only age, MMP-9, and IL-18 were independently associated with AF, in which IL-18 had the most significant association (P = 0.0011, standardized estimate &bgr = 1.76, OR = 1.02, 95% confidence interval: 1.01-1.03). Interleukin-18 levels in persistent AF patients were higher than those in paroxysmal ones (P = 0.0011). Patients who developed AF within 24 h prior to sampling displayed a higher level of IL-18 than those with sinus rhythm (P = 0.0027). Interleukin-18 was positively correlated with left atrial diameter (r = 0.33, P = 0.0117).
CONCLUSION: This study documents the elevated IL-18 in AF patients. Interleukin-18 may be superior to other inflammatory markers which are known to be elevated in AF.
Authors:
Ying Luan; Yuanyuan Guo; Shufeng Li; Bo Yu; Sui Zhu; Shaojun Li; Ning Li; Zhen Tian; Chenghai Peng; Jiali Cheng; Qingsong Li; Jinjin Cui; Ye Tian
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-09-10
Journal Detail:
Title:  Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology     Volume:  12     ISSN:  1532-2092     ISO Abbreviation:  Europace     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883649     Medline TA:  Europace     Country:  England    
Other Details:
Languages:  eng     Pagination:  1713-8     Citation Subset:  IM    
Affiliation:
Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, People's Republic of China.
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