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Related Experiment Videos

[Homocysteine: why is it harmful?].

M Ia Kagan-Ponomarev1

  • 1Laboratory for Clinical Problems of Atherosclerosis, A. L. Myasnikov Institute of Clinical Cardiology, Russian Scientific Cardiology Complex, RF Ministry of Public Health, Moscow, Russia.

Angiologiia I Sosudistaia Khirurgiia = Angiology and Vascular Surgery
|May 28, 2004
PubMed
Summary

Hyperhomocysteinemia damages blood vessels by negatively impacting vessel walls, cell interactions, and blood clotting. Understanding these mechanisms is crucial for preventing vascular disease.

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Area of Science:

  • Vascular Biology
  • Biochemistry
  • Pathophysiology

Context:

  • Hyperhomocysteinemia is an established risk factor for vascular disease.
  • The precise mechanisms linking homocysteine to vascular damage require detailed elucidation.

Purpose:

  • To comprehensively review the pathogenetic mechanisms of hyperhomocysteinemia-induced vascular damage.
  • To consolidate current understanding of how elevated homocysteine affects the vasculature.

Summary:

  • Hyperhomocysteinemia adversely affects endothelial and smooth muscle cell function, impairing vessel wall integrity and vasodilatation.
  • It promotes prothrombotic states by influencing coagulation factors and blood cell interactions like monocyte and platelet adhesion.
  • Homocysteine also impacts vascular adenosine levels, further contributing to endothelial dysfunction.

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Impact:

  • Provides a foundational understanding for developing targeted therapies against hyperhomocysteinemia-related vascular complications.
  • Highlights key molecular pathways involved in homocysteine-induced endothelial dysfunction and thrombosis.
  • Informs clinical strategies for risk assessment and management of patients with elevated homocysteine levels.