Stable phase post-MI patients have elevated VEGF levels correlated with inflammation markers, but not with atherosclerotic burden

BMC Cardiovascular Disorders

Research Article

Barbara Eržen¹  Mišo Šabovič¹  Mira Šilar² 

[1] Department of Vascular Disease, University Clinical Centre, 1000, Ljubljana, Slovenia;Laboratory for Clinical Immunology & Molecular Genetics, University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia;

关键词: Vascular endothelial growth factor;    Inflammation markers;    Interleukin 6;    Interleukin 8;    Endothelial dysfunction;    Myocardial infarction;    Young adult patients;   

DOI  :  10.1186/1471-2261-14-166

 received in 2014-05-30, accepted in 2014-11-11,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundThe role of vascular endothelial growth factor (VEGF) in patients in the stable phase after myocardial infarction (MI) has not yet been explored. Therefore, we compared the values of VEGF in post-MI patients with those obtained in healthy controls. Furthermore, we investigated whether the values of VEGF correlate to either inflammation markers or the atherosclerotic burden.Methods41 male patients (on average 44 years old) in the stable phase after MI (on average 20.5 months after MI) were recruited, while 25 healthy age-matched males served as controls. Plasma levels of VEGF and several markers of inflammation were measured by standard procedures. The atherosclerotic burden was determined by the angiographic severity of coronary atherosclerosis, endothelial dysfunction (measured by ultrasound measurement of the flow mediated dilation of the brachial artery), the intima-media thickness of the common carotid artery and the ankle-brachial pressure index.ResultsVEGF values were significantly elevated in post-MI patients compared to the controls (53.8 ± 42.7 pg/ml vs. 36.3 ± 8.9 pg/ml, p = 0.014). The elevated VEGF values significantly correlated to the (increased) values of the inflammatory molecules interleukin 6 and 8 (r = 0.37, p = 0.017; and r = 0.45, p = 0.003; respectively). In contrast, no correlation was found between VEGF and the parameters of the atherosclerotic burden, although FMD and IMT were significantly impaired in patients.ConclusionsWe found that plasma levels of VEGF are increased in the stable phase after MI and correlate with inflammation cytokines, but not with the atherosclerotic burden. Thus, this suggests that increased levels of VEGF are a part of ongoing inflammatory activity. Since VEGF in these patients stimulates neovascularization of inflamed plaques and induces their destabilization, the VEGF level can have an important negative prognostic value. Clearly, further studies are needed to clarify the role of VEGF as a prognostic marker.

【 授权许可】

CC BY   
© Eržen et al.; licensee BioMed Central Ltd. 2014