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S S Todorov1

  • 1Rostov State Medical University. sertodorov@gmail.com.

Kardiologiia
|February 4, 2019
PubMed
Summary

Unstable atherosclerotic plaques show increased smooth muscle cells (SMC) and new blood vessel growth. Macrophages infiltrate areas with foam cells, indicating a complex cellular process in plaque development.

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Area of Science:

  • Cardiovascular Pathology
  • Atherosclerosis Research
  • Vascular Biology

Background:

  • Atherosclerosis involves plaque buildup in arteries.
  • Unstable plaques are prone to rupture and complications.
  • Understanding plaque composition is crucial for treatment.

Purpose of the Study:

  • To investigate the cellular and intercellular components of unstable atherosclerotic plaques.
  • To assess the condition of smooth muscle cells (SMC) and macrophages in these plaques.

Main Methods:

  • Morphohistochemical and immunohistochemical analysis of peripheral artery plaques.
  • Study included 50 patients over 60 years old.

Main Results:

  • Observed hyperplasia of secretory smooth muscle cells (SMC) in unstable plaques.
  • Detected new formation of thin-walled capillary vessels within plaques.
  • Macrophage infiltration was evident in the intima, particularly near foam cells.

Conclusions:

  • Unstable atherosclerotic plaques represent a dynamic cellular-intercellular process.
  • Lipids and macrophages are key participants.
  • Smooth muscle cells (SMC) and newly formed vessels predominate in unstable plaques.