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Homocysteine--relevant for atherogenesis?

T Kircher1, H Sinzinger

  • 1Department of Nuclear Medicine, University of Vienna, Austria.

Wiener Klinische Wochenschrift
|August 23, 2000
PubMed

Insights

High homocysteine (hyperhomocysteinemia) is linked to early vascular disease. Vitamin B, particularly folic acid, can treat it, but more trials are needed to confirm benefits for atherosclerosis.

Area of Science:

  • Cardiovascular Medicine
  • Nutritional Science
  • Genetics

Background:

  • Hyperhomocysteinemia is strongly associated with premature atherosclerotic vascular disease.
  • Causes include genetic defects and deficiencies in vitamin B12, folate, and B6.
  • Elevated homocysteine levels are influenced by lifestyle, age, sex, illness, and medications.

Purpose of the Study:

  • To review the causes, consequences, and management of hyperhomocysteinemia.
  • To assess the role of hyperhomocysteinemia as a risk factor for atherosclerosis.
  • To highlight the need for further clinical trials and standardized diagnostic methods.

Main Methods:

  • Literature review of studies on hyperhomocysteinemia and atherosclerotic vascular disease.
  • Analysis of etiological factors, including genetic and nutritional aspects.
  • Evaluation of current treatment strategies and diagnostic challenges.

Main Results:

  • Vitamin B supplementation, especially folic acid, effectively treats hyperhomocysteinemia.
  • The definitive role of homocysteine as an independent risk factor for atherosclerosis remains unclear compared to established factors.
  • Lack of standardized analytical methods complicates the interpretation of clinical data.

Conclusions:

  • Diagnosis and treatment are currently recommended for high-risk patients with a family history of premature atherosclerosis.
  • Further clinical trials are essential to validate the benefits of lowering homocysteine in preventing and managing atherosclerotic vascular disease.
  • Standardization of homocysteine and folate assays is crucial for reliable clinical evaluation.

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