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Updated: Aug 30, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
[Hyperhomocysteinemia in acute cerebral infarction]
Rebeca O Millán-Guerrero1, Clemente Vázquez, Lizette Isais-Aguilar
1Servicio de Neurología, Clínica HGZ UMF 1 IMSS, Colima.
Insights
Elevated homocysteine levels were found in 59% of patients with acute cerebral infarction. This study did not find a link between high homocysteine and common risk factors for stroke.
Area of Science:
- Neurology
- Cardiovascular Science
- Metabolic Disorders
Context:
- Hyperhomocysteinemia is increasingly implicated in the arteriosclerotic processes underlying cerebral infarction.
- Understanding homocysteine's role in stroke is crucial for developing targeted interventions.
Purpose:
- To quantify plasmatic homocysteine levels in patients experiencing acute cerebral infarction.
- To investigate potential associations between homocysteine levels and clinical stroke subtypes or known risk factors.
Summary:
- This descriptive study analyzed 22 patients with acute cerebral infarction, measuring serum homocysteine levels.
- Elevated homocysteine was detected in 59% of patients (13 out of 22), with an average level of 20.68 mumol/l.
- No significant correlation was identified between hyperhomocysteinemia and clinical stroke characteristics or traditional risk factors like hypertension, diabetes, smoking, or alcoholism.
Impact:
- The findings highlight a high prevalence of hyperhomocysteinemia in acute cerebral infarction patients.
- Further research is needed to elucidate the specific factors contributing to elevated homocysteine and to develop strategies for its reduction.
- Lowering homocysteine levels may offer a novel approach to mitigating cerebrovascular disease incidence.
Antecedents:
Hyperhomocysteinemia has recently been recognized as contributing directly or associatively to the arteriosclerotic process in cerebral infarction.
Objective:
To determine plasmatic homocysteine levels in with patients with acute cerebral infarction and to seek an association between clinical sub-types of cerebral lesion and homocysteine levels and risk factors present.
Materials And Methods:
A descriptive study was carried out on patients diagnosed with acute cerebral infarction. The study included 22 patients of both sexes between the ages of 40 and 85 years. Samples were collected on the second day of hospitalization after 12 h of fasting.
Results:
In 13 of 22 patients, elevated levels of serum homocysteine were found. The homocysteine average was 20-68 mumol/l +/- 9.6 SD. No association between degree of cerebral lesion and risk factors was found (p > 0.05).
Conclusion:
An increase in homocysteine was found in 59% of cerebral infarction patients. No correlation between hyperhomocysteinemia and known risk factors such as smoking, alcoholism, high blood pressure, and diabetes was found. It is necessary to continue this line of investigation to identify conditioning factors that elevate homocysteine and to implement measures to lower levels of hyperhomocysteinemia, thus helping reduce the incidence of cerebrovascular disease.
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