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Hyperhomocyst(e)inemia: a risk factor for cerebrovascular disease
Lucilla Parnetti1, Valeria Caso, Serena Amici
1Neuroscience Department, University of Perugia, Italy. parnetti@unipg.it
Clinical and Experimental Hypertension (New York, N.Y. : 1993)
|November 27, 2002
Summary
Elevated homocysteine (Hcy) levels are linked to vascular disease. However, studies on the association between Hcy and stroke risk show mixed results, indicating a need for further research.
Area of Science:
- Cardiovascular epidemiology
- Neurology
- Metabolic disorders
Background:
- Moderate hyperhomocysteinemia is associated with atherosclerotic vascular disease.
- Endothelial wall damage is a potential mechanism linking hyperhomocysteinemia to stroke.
- Existing research presents conflicting evidence regarding elevated homocysteine levels and stroke risk.
Purpose of the Study:
- To investigate the association between homocysteine concentrations and stroke risk.
- To clarify the pathogenetic link between hyperhomocysteinemia and stroke.
- To address inconsistencies in current scientific literature.
Main Methods:
- Review of case-control and cohort studies.
- Analysis of prospective cohort studies examining homocysteine (Hcy) levels.
- Evaluation of evidence for endothelial wall damage as a pathogenic factor.
Main Results:
- A strong, dose-related association between hyperhomocysteinemia and atherosclerotic vascular disease is established.
- Some prospective studies did not find a significant association between elevated Hcy and stroke.
- The role of Hcy in endothelial damage requires further investigation.
Conclusions:
- The relationship between homocysteine levels and stroke risk remains uncertain.
- Further research is necessary to fully characterize this association.
- Clarifying the role of endothelial damage is crucial for understanding stroke pathogenesis.