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Updated: Aug 24, 2026

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
Published on: October 15, 2010
[Effect of tobacco smoking on endothelial function in patients with coronary arteriosclerosis]
Rafał Poreba1, Anna Skoczyńska, Arkadiusz Derkacz
1Katedra i Klinika Chorób Wewnetrznych, Zawodowych i Nadciśnienia Tetniczego AM we Wrocławiu.
Insights
Cigarette smoking impairs endothelial function, lowering nitric oxide (NO) levels and increasing inflammation markers like interleukin-6 and sICAM in individuals with coronary artery atherosclerosis. This suggests smoking exacerbates vascular inflammation.
Area of Science:
- Cardiovascular Medicine
- Vascular Biology
- Biochemistry
Context:
- Smoking is a primary risk factor for atherosclerosis and ischemic heart disease.
- Endothelial dysfunction is a key pathological consequence of smoking.
- This study investigates smoking's impact on endothelial function markers in patients with confirmed coronary atherosclerosis.
Purpose:
- To assess the biochemical effects of cigarette smoking on endothelial function parameters.
- To compare endothelial and inflammation markers between smokers and non-smokers with and without coronary atherosclerosis.
Summary:
- Smoking significantly reduced nitric oxide (NO) levels in both healthy controls and patients with atherosclerosis compared to non-smokers.
- Patients with coronary atherosclerosis who smoked exhibited elevated levels of interleukin-6 and soluble intercellular adhesion molecule-1 (sICAM).
- These findings indicate that smoking promotes or sustains inflammatory responses in atherosclerotic blood vessels.
Impact:
- Highlights the detrimental biochemical impact of smoking on vascular health, particularly in the context of atherosclerosis.
- Provides evidence for smoking-induced endothelial dysfunction and inflammation, contributing to ischemic heart disease.
- Underscores the importance of smoking cessation for managing cardiovascular risk and improving endothelial function.
Abstract:
Smoking is one of the most important risk factors of atherosclerosis and ischaemic heart disease. Endothelial dysfunction is a pathological result of smoking. The aim of the study was to examine the influence of cigarette smoking on biochemical parameters of endothelial function in persons with angiographically confirmed coronary arteries atherosclerosis. The study group included 117 men: 55 patients (mean age 58.8 +/- 10.4) with ischaemic heart disease and 62 healthy subjects (mean age 47.1 +/- 9.3) of control group. In all patients blood lipid concentrations, biochemical parameters of endothelial function (nitric oxide, endothelin-1, sICAM, selectin-E), and inflammation parameters (interleukin-1 beta, interleukin-6) were measured. In a group of smoking patients both: with atherosclerosis and in control subjects nitric oxide (NO) concentrations in serum were decreased in comparison to nonsmokers. In patients with diagnosed coronary arteries atherosclerosis interleukin-6 and sICAM concentrations were increased in comparison to non-smokers. It is concluded that cigarette smoking activates or maintains inflammatory reaction in vessels with atherosclerotic changes.
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