Article,

Vascular endothelial growth factor protein levels and gene expression in peripheral monocytes after stenting: a randomized comparative study of sirolimus: eluting and bare metal stents

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Eur.Heart J., 29 (6): 733-740 (2008)

Abstract

AIMS: Although previous studies have indicated that vascular endothelial growth factor (VEGF) plays an important role in the vascular-healing process after stent implantation, its effect on in-stent restenosis is unclear. We assessed VEGF serum protein levels and gene expression in peripheral monocytes in relation to in-stent restenosis after implantation of sirolimus-eluting (SES) and bare metal stents (BMS) in a non-blinded, randomized study. METHODS AND RESULTS: Forty-two patients (28 men, age 62 +/- 11 years) with stable angina, who underwent elective single-vessel percutaneous coronary intervention, were randomized to SES (n = 21) or BMS (n = 21) implantation. VEGF protein levels in the BMS group showed an increasing trend (P = 0.083), whereas in the SES group they decreased significantly (P = 0.002). BMS induced up-regulation of VEGF mRNA levels, whereas for SES down-regulation was observed. There was no correlation between serum levels and late luminal loss. A significant correl

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