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Updated: Jul 7, 2026

Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
Published on: June 22, 2012
Endothelaemia--a marker of vascular damage
J Rajec1, J Tisonova, M Kriska
1Department of Pharmacology, Faculty of Medicine, Comenius University, Bratislava, Slovakia. jan.rajec@fmed.uniba.sk
Insights
This study found higher circulating endothelial cells (CECs) in patients with advanced cardiovascular disease, indicating vascular injury. These findings support CECs as potential biomarkers for cardiovascular risk assessment.
Area of Science:
- Cardiovascular Medicine
- Vascular Biology
- Biomarker Research
Background:
- Endothelaemia, a marker of vascular injury, is elevated in high cardiovascular risk patients.
- Elevated endothelaemia is observed in both cardiovascular and non-cardiovascular conditions.
- Further research is needed to explore endothelaemia's diagnostic utility in acute coronary syndrome and cardiovascular risk stratification.
Purpose of the Study:
- To quantify circulating endothelial cells (CECs) in advanced cardiovascular disease patients.
- To compare CEC levels between cardiovascular patients and a control group.
- To determine statistically significant differences in CEC levels among patient groups.
Main Methods:
- Quantitative measurement of endothelaemia using J. Hladovec's method.
- Isolation of endothelial cells (ECs) with platelets in Bürker's chamber.
- Removal of platelets via adenosine-diphosphate addition for EC counting.
Main Results:
- Mean baseline endothelaemia was significantly higher in high cardiovascular risk patients (ACS and PAOD) versus controls.
- Patients with peripheral artery occlusive disease (PAOD) showed significantly increased endothelaemia post-surgery compared to pre-surgery levels.
- Statistical significance (p < 0.05) was observed for all key findings.
Conclusions:
- This pilot study confirms significantly elevated endothelaemia in high cardiovascular risk patients.
- Findings align with existing data on endothelaemia and vascular injury.
- Advanced methods like immunomagnetic principles may enhance clinical utility of endothelaemia measurement.
Objectives:
The aim of the study was to determine the amount of circulating endothelial cells (CECs) in patients with an advanced cardiovascular (CV) disease, compare the values with a control group and finally to ascertain if there are statistically significant differences within the studied patient groups.
Background:
Endothelaemia has been intensively studied as a marker of vascular injury. Clinical studies have demonstrated an increased endothelaemia in patients at high CV risk but also in certain non-cardiovascular disorders. Its possible usage in the diagnostics of the acute coronary syndrome and for CV risk assessment needs further investigations.
Methods:
Thirty six hospitalized patients were studied. Quantitative measurement of endothelaemia was performed by the method developed by J. Hladovec. It is based on ECs counting in Bürker's chamber after their isolation with platelets and the removal of the latter by an addition of adenosine-diphosphate.
Results:
The mean baseline endothelaemia was significantly higher in patients with increased cardiovascular risk when compared with the control group (1.38 +/- 0.899): ACS (4.9 +/- 1.59, p < 0.05) and PAOD (3.74 +/- 0.61, p < 0.05). When comparing the mean endothelaemia values in patients with PAOD before (2.67 +/- 0.86) and after (3.88 +/- 0.77) surgery, a significant increase of endothelaemia was observed (p < 0.05).
Conclusion:
Our pilot study, though limited by a relatively small number of patients, proved a significant increase of endothelaemia in patients at high CV risk, which is consistent with other available data. The introduction of newer specific methods based on immunomagnetic principles may provide a wider use of endothelaemia measurement in clinical settings (Fig. 3, Ref. 17). Full Text (Free, PDF) www.bmj.sk.
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