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[Mast cell population in rats with experimental atherosclerosis]
Biulleten' Eksperimental'Noi Biologii I Meditsiny
|March 1, 1987
Summary
Experimental atherosclerosis in rats significantly alters mast cell populations, leading to cell defects and reduced heparin content. These findings highlight mast cell dysfunction in atherosclerosis development.
Area of Science:
- Immunology
- Pathology
- Hematology
Background:
- Atherosclerosis is a chronic inflammatory disease characterized by plaque buildup in arteries.
- Mast cells play a role in inflammatory processes and vascular remodeling.
Purpose of the Study:
- To investigate the impact of experimental atherosclerosis on mast cell populations in rats.
- To assess changes in mast cell characteristics, including heparin content and cell integrity.
Main Methods:
- Rats were fed an atherogenic diet for 8 months to induce experimental atherosclerosis.
- Mast cell populations were analyzed for changes in cell type, defects, and heparin saturation index.
- The anticoagulation system's response to DIP-alpha-thrombin was evaluated.
Main Results:
- Animals on an atherogenic diet showed significant alterations in mast cell populations.
- A predominance of light mast cells and evidence of cell defects were observed.
- The heparin saturation index was markedly reduced (0.35 vs. 3.9 in controls).
- No heparin was detected in the blood of affected animals upon stimulation.
Conclusions:
- Experimental atherosclerosis induces defects in the mast cell pool.
- Reduced heparin content and altered mast cell morphology are characteristic of this condition.
- These mast cell abnormalities may contribute to the pathogenesis of atherosclerosis.