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SRAGE, inflammation, and risk of atrial fibrillation: results from the Atherosclerosis Risk in Communities (ARIC) Study.


ABSTRACT: Advanced glycation end products (AGEs) may cause inflammation by binding to their cellular receptors (RAGE). Soluble RAGE (sRAGE) acts as a decoy receptor for AGEs and may prevent inflammation. Chronic low-grade inflammation is a risk factor for cardiovascular disease, including atrial fibrillation (AF).We studied 1,068 participants in a subsample of the Atherosclerosis Risk in Communities (ARIC) Study who had baseline measurements of sRAGE (mean age 56, 60% female, 21% Black). Inflammation was assessed using measurements of high sensitivity C-reactive protein (hsCRP), fibrinogen, gamma-glutamyl transferase (GGT) and white blood cell (WBC) count. AF events were identified using ECG data, hospitalization discharge codes, and linkage to the National Death Index.Compared to the highest quartile (>1272.4 pg/mL), the lowest quartile of sRAGE (<714 pg/mL) was associated with higher baseline levels of inflammation (hsCRP ?3 mg/L: OR=2.21 [95% CI 1.41-3.49], fibrinogen ?400 mg/dL: OR=4.31 [95% CI 1.50-12.41], GGT ?36 U/L in women and ?61 U/L in men: OR=5.22 [95% CI 2.66-10.22], WBC >6.2×10?/L: OR=2.38 [95% CI 1.52-3.72]). sRAGE was not prospectively associated with 6-year change in inflammatory markers (hsCRP or GGT). There was no significant association of sRAGE and risk of AF (HR 1.49 [95% CI: 0.80-2.78] for the 1st vs. 4th quartile of sRAGE).sRAGE was strongly inversely associated with markers of inflammation at baseline, but not prospectively. sRAGE was not significantly associated with incident AF. This supports a role for sRAGE in attenuating current inflammation, but it remains unclear whether sRAGE plays a role in the development of AF.

SUBMITTER: Al Rifai M 

PROVIDER: S-EPMC4333077 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature

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sRAGE, inflammation, and risk of atrial fibrillation: results from the Atherosclerosis Risk in Communities (ARIC) Study.

Al Rifai Mahmoud M   Schneider Andrea L C AL   Alonso Alvaro A   Maruthur Nisa N   Parrinello Christina M CM   Astor Brad C BC   Hoogeveen Ron C RC   Soliman Elsayed Z EZ   Chen Lin Y LY   Ballantyne Christie M CM   Halushka Marc K MK   Selvin Elizabeth E  

Journal of diabetes and its complications 20141125 2


<h4>Objective</h4>Advanced glycation end products (AGEs) may cause inflammation by binding to their cellular receptors (RAGE). Soluble RAGE (sRAGE) acts as a decoy receptor for AGEs and may prevent inflammation. Chronic low-grade inflammation is a risk factor for cardiovascular disease, including atrial fibrillation (AF).<h4>Methods</h4>We studied 1,068 participants in a subsample of the Atherosclerosis Risk in Communities (ARIC) Study who had baseline measurements of sRAGE (mean age 56, 60% fem  ...[more]

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