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[Thrombocyte phospholipids in ischemic heart disease with a varying degree of coronary arteriosclerosis severity]
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Platelet phospholipids change in ischemic heart disease, with altered fatty acids and increased phosphatidyl serine. These phospholipid changes correlate with coronary atherosclerosis severity and increased platelet aggregation.
Area of Science:
- Cardiovascular Science
- Biochemistry
- Medical Research
Background:
- Ischemic heart disease (IHD) is a major cause of mortality worldwide.
- Atherosclerosis, particularly coronary atherosclerosis, is the primary underlying pathology of IHD.
- Alterations in blood platelet phospholipid composition may play a role in IHD pathogenesis.
Purpose of the Study:
- To investigate the changes in blood platelet phospholipid composition in patients with ischemic heart disease.
- To correlate these phospholipid alterations with the severity of coronary atherosclerosis.
- To examine the relationship between phospholipid changes and blood platelet aggregation.
Main Methods:
- Analysis of blood platelet phospholipid levels, including phosphatidyl serine, lipoleic acid, arachidonic acid, and oleic acid.
- Assessment of coronary atherosclerosis severity.
- Measurement of blood platelet aggregation.
Main Results:
- Significant increases in relative phosphatidyl serine and oleic acid levels were observed in patients with IHD and severe coronary atherosclerosis.
- Decreases in lipoleic and arachidonic acid percentages were noted in these patients.
- In the broader IHD group, a significant decrease in linoleic acid was the primary finding compared to healthy individuals.
- Blood platelet aggregation increased with the progression of coronary atherosclerosis.
Conclusions:
- Specific alterations in blood platelet phospholipid composition are associated with ischemic heart disease and coronary atherosclerosis.
- These phospholipid changes, particularly the altered fatty acid profile, may contribute to the increased platelet aggregation observed in IHD.
- The degree of phospholipid alteration correlates with the severity of atherosclerotic disease.
Abstract:
A significant increase of the relative phosphatidyl serine level, a decrease in the percentage of lipoleic and arachidonic acids, and an increase in the oleic acid level were revealed in blood platelet phospholipids of patients with ischemic heart disease and severe coronary atherosclerosis. In the entire group of patients with ischemic heart disease (with coronary atherosclerosis of various degree), these changes are less marked and only the decrease in the linoleic acid level as compared to that in healthy individuals is significant. It was established that besides these changes in the phospholipid structures, blood platelet aggregation increases when the severity of the atherosclerotic process in the coronary arteries becomes more pronounced.