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[Association between plasmatic levels of homocysteine and stroke: a transversal analytic study]
Lillian Harboe-Gonçalves1, Luiz Sérgio Vaz, Marcelo Buzzi
1Hospital SARAH, Belo Horizonte, MG, Brazil.
Insights
Elevated homocysteine levels are linked to ischemic stroke, particularly in individuals with hypertension and atherosclerosis. This finding highlights homocysteine as a potential risk factor for stroke.
Area of Science:
- Biochemistry
- Neurology
- Cardiovascular Science
Context:
- Ischemic stroke is a leading cause of death and disability worldwide.
- Understanding risk factors is crucial for stroke prevention and management.
- Homocysteine, an amino acid, has been implicated as a potential risk factor for vascular diseases.
Purpose:
- To investigate the association between homocysteine levels and ischemic stroke.
- To examine the influence of factors like age, gender, smoking, hypertension, and diabetes on this association.
- To explore the relationship between homocysteine and the etiology of cerebrovascular disease.
Summary:
- A study of 104 ischemic stroke patients and 98 controls found significantly higher homocysteine levels in patients.
- Elevated homocysteine was associated with hypertension and atherosclerotic cerebrovascular disease.
- Logistic regression confirmed a relationship between atherosclerosis and homocysteine, suggesting its role in stroke.
Impact:
- This research identifies homocysteine as a significant risk factor for ischemic stroke.
- Findings may inform clinical practice regarding stroke risk assessment and prevention strategies.
- Further research into homocysteine-lowering therapies could be warranted.
Purpose:
To determine the association of homocysteine with ischemic stroke, considering age, gender, cigarette smoking, hypertension, diabetes and etiology of cerebrovascular disease.
Method:
Transversal analytic observational study of 104 patients with the diagnosis of ischemic stroke and 98 healthy controls had blood homocysteine analyzed by high performance liquid chromatography. Statistics was performed with Student's t and Kruskal-Wallis' tests, analysis of variance, linear regression analysis, logistic regression and Pearson's linear correlation coefficient.
Results:
Patients had higher values for homocysteine (15.4 +/- 11.7 micromol L(-1)) than controls (10.5 +/- 4.2 micromol L(-1)). Dividing both groups into four groups according to age, significant differences in homocysteine values were found between patients and controls with age 40-49 and 50-59 years. Homocysteine values were significantly higher in patients with hypertension and in those with diagnosis of atherosclerotic cerebrovascular disease. Logistic regression studies showed relationship between atherosclerosis and homocysteine.
Conclusions:
Homocysteine is associated with ischemic stroke.
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