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Acute smoke-induced endothelial dysfunction is more prolonged in smokers than in non-smokers

Authors
Journal
International Journal of Cardiology
0167-5273
Publisher
Elsevier
Publication Date
Volume
120
Issue
3
Identifiers
DOI: 10.1016/j.ijcard.2006.07.200
Keywords
  • Endothelial Dysfunction
  • Cigarette Smoking
  • Fmd

Abstract

Abstract Background The aim of the study was to compare acute endothelial dysfunction caused by smoking one cigarette between smokers and non-smokers. Methods Thirty volunteers, 15 smokers and 15 non-smokers, were asked to smoke the same type of cigarette and endothelial function was assessed by FMD (flow mediated dilatation) at fast, 30, 60 and 90 min post-smoking. Results Overall response of FMD after smoking was significantly different between smokers and non-smokers ( p = 0.011). Endothelial dysfunction after smoking remained significant for 1-h in smokers ( p = 0.002), but only for 30 min in non-smokers ( p = < 0.001). FMD 1-h after smoking was significantly higher in non-smokers than in smokers ( p = 0.002). Conclusions Smokers seem to have sustained and more intensive unfavourable effects in endothelial function than non-smokers after smoking one cigarette. It is possible that long-term smoking diminishes the capacity of endothelium to counterbalance external factors that cause endothelial dysfunction.

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