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On-Chip Endothelial Inflammatory Phenotyping
Published on: July 21, 2012
Viscosity, hemostasis and inflammation in atherosclerotic heart diseases
Gábor Késmárky1, Gergely Fehér, Katalin Koltai
1First Department of Medicine, University of Pécs, Pécs, Hungary. gabor.kesmarky@aok.pte.hu
Insights
This study reveals that hemorheological and hemostaseological factors significantly impact atherosclerotic heart diseases. Effective antiplatelet treatment correlates with better outcomes, highlighting their importance in vascular health.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Vascular Biology
Background:
- Atherosclerotic diseases impair vascular reserve and reduce pressure gradients, accelerating tissue ischemia due to decreased blood fluidity.
- Previous research indicated worsened plasma and whole blood viscosities in patients with acute coronary syndromes, chronic coronary artery disease, and post-angioplasty.
Purpose of the Study:
- To investigate the interplay of hemorheological and hemostaseological factors in cardiovascular and cerebrovascular diseases, including diabetes mellitus.
- To assess the relationship between risk factors, medication, and hemorheological/hemostaseological parameters.
Main Methods:
- Evaluated hemorheological variables (viscosities, hematocrit, red blood cell aggregation).
- Assessed hemostaseological parameters (plasma fibrinogen, von Willebrand factor (vWf)).
- Measured platelet aggregation, risk factors (lipids, smoking, glucose), and medication.
Main Results:
- A significant portion of vascular patients exhibited poor ex vivo platelet inhibition.
- Effective antiplatelet therapy correlated with lower plasma fibrinogen, reduced red blood cell aggregation, and fewer recurrent vascular events.
- Diabetic patients showed elevated vWf activity linked to hemoglobin A1c, not fasting glucose.
Conclusions:
- Hemorheological and hemostaseological factors play an active, interactive role in atherosclerotic heart diseases.
- Effective antiplatelet treatment, influenced by these factors, is associated with improved clinical outcomes.
Background:
In atherosclerotic diseases vascular reserve is impaired and pressure gradient is decreased, therefore the reduced blood fluidity can lead to tissue ischemia more rapidly. In previous investigations we demonstrated the deterioration of plasma and whole blood viscosities in patients with acute ischemic coronary syndromes, chronic coronary artery disease, and percutaneous transluminal coronary angioplasty.
Methods:
Hemorheological variables (plasma and whole blood viscosities, hematocrit, red blood cell aggregation), hemostaseological parameters (plasma fibrinogen and von Willebrand factor (vWf)), and platelet aggregation were detected in more recent studies in cardio- and cerebrovascular diseases, and diabetes mellitus. Common risk factors (lipid profile, smoking, glucose level, previous diseases) and medication were also recorded.
Results:
High portion of vascular patients were demonstrated to have poor ex vivo platelet inhibition. Effective antiplatelet treatment detected by aggregometry was related to lower plasma fibrinogen concentration and red blood cell aggregation and was also associated with less recurrent vascular events during the follow-up (p < 0.001). Beside the impaired hemorheological characteristics, the diabetic patients showed elevated vWf activity, which turned to correlate with hemoglobin A1c concentration (p < 0.01) rather than the fasting glucose.
Summary:
Our studies indicate the active role and interaction of hemorheological and hemostaseological factors in atherosclerotic heart diseases.
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