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European Journal of General Medicine
Medical Investigations Society
ISSN: 1304-3897
Vol. 7, No. 4, 2010, pp. 404-409
Bioline Code: gm10076
Full paper language: English
Document type: Research Article
Document available free of charge

European Journal of General Medicine, Vol. 7, No. 4, 2010, pp. 404-409

 en The Levels of Asymmetric Dimethylarginine in Patients with Isolated Coronary Artery Ectasia
Erden, İsmail; Erden, Emine Çakcak; Sözen, Serhat Bahadır; Kayapınar, Osman; Çağlar, Sabri Onur & Başar, Cengiz

Abstract

Aim: Although underlying mechanisms of coronary artery ectasia (CAE) are clearly unknown, endothelial dysfunction may be responsible for the coronary ectasia. Asymmetric dimethylarginine (ADMA) is the principal endogenous inhibitor of nitric oxide synthase and elevated levels of ADMA is considered to be a marker of endothelial dysfunction and increased risk of cardiovascular disease. Accordingly, we investigated serum ADMA levels in patients with CAE in comparison with participants having normal coronary artery.
Method: This study consisted of 41 consecutive patients with angiographically proven normal coronary arteries with CAE and 48 controls with normal coronary arteries without coronary artery ectasia undergoing cardiac catheterization. Serum levels of ADMA were measured by Enzyme Linked Immunosorbent Assay.
Result: Serum level of ADMA was significantly higher in CAE patients compared with controls (1.9±0.9 μmol/l vs. 1.1±0.7 μmol/l, respectively, p= 0.01). Serum ADMA levels was an independent predictor for CAE (OR= 1.486 [95% confidence interval (CI): 0.978-2.054; p= 0.03]). ADMA levels correlated with diffuse ectasia (p= 0.04).
Conclusion: Our findings provide evidence to support the hypothesis that endothelial dysfunction may be an important factor in the pathogenesis of CAE.

Keywords
Coronary artery, ectasia, asymmetric dimethylarginine

 
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