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Updated: Feb 8, 2026

A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
Published on: May 6, 2014
The impact of TFPI on coronary atherosclerotic burden
Insights
Endothelial dysfunction (ED), increased carotid intima-media thickness (CIMT), and Tissue Factor Pathway Inhibitor (TFPI) levels are associated with coronary artery disease (CAD). Higher CIMT and lower FMD/NMD correlate with CAD severity.
Area of Science:
- Cardiovascular Medicine
- Vascular Biology
- Biomarkers of Atherosclerosis
Background:
- Endothelial dysfunction (ED) plays a key role in atherosclerosis development.
- Carotid intima-media thickness (CIMT) and Tissue Factor Pathway Inhibitor (TFPI) activity are established markers associated with atherosclerosis and coronary artery disease (CAD).
Purpose of the Study:
- To investigate the association between the presence and severity of coronary artery disease (CAD).
- To evaluate the relationship between CAD and endothelial dysfunction (ED), carotid intima-media thickness (CIMT), and Tissue Factor Pathway Inhibitor (TFPI) levels.
Main Methods:
- Prospective observational study involving 50 patients with CAD and 30 controls with normal coronary arteries.
- Endothelial function assessed via flow-mediated dilatation (FMD) and nitroglycerine-mediated dilatation (NMD).
- Measurements included CIMT and serum TFPI levels.
Main Results:
- Elevated TFPI levels were significantly higher in patients with CAD (84.9 ± 19.3 vs 70.2 ± 14.7, p = 0.001).
- A positive correlation was found between CIMT and Gensini score (r = 0.34, p = 0.014).
- Strong negative correlations observed between Gensini score and FMD/NMD (FMD: r = -0.715, p < 0.001; NMD: r = -0.718, p < 0.001).
Conclusions:
- Endothelial dysfunction (ED), elevated CIMT, and increased TFPI levels are significantly associated with the presence of CAD.
- Increased CIMT and decreased FMD/NMD values demonstrate a positive correlation with coronary artery disease severity (Gensini score).
Objectives:
We aimed to associate a coronary artery disease (CAD) presence and severity with endothelial dysfunction (ED), carotid intima media thickness (CIMT) and Tissue Factor Pathway Inhibitor (TFPI).
Background:
ED has a central role in atherosclerosis. CIMT and TFPI activity are also related with atherosclerosis and CAD.
Methods:
In our prospective observational study, 50 patients had CAD and 30 had normal coronary arteries. Endothelial function was evaluated by endothelium-dependent flow-mediated dilatation (FMD) and nitroglycerine-mediated dilatation (NMD) measurements. CIMT and Serum TFPI levels were also measured.
Results:
TFPI was a statistically significant determinant between the two groups with an increased level in CAD (+) group (84.9 ± 19.3 vs 70.2 ± 14.7, p = 0.001). There was a positive correlation between CIMT and Gensini (r = 0.34, p = 0.014). There was a strong negative correlation between Gensini and FMD-NMD, statistically significant (FMD: r = -0.715, p < 0.001; NMD: r = -0.718, p < 0.001).
Conclusion:
We observed that ED, increased CIMT and TFPI levels were associated with CAD. Additionally, increased CIMT measurements and decreased FMD and NMD values had a positive correlation with GSS (Tab. 4, Fig. 6, Ref. 50).
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