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Updated: Jun 21, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Homocysteine and stroke: another brick in the wall
Simona Sacco1, Antonio Carolei
1Clinica Neurologica, Università degli Studi di L'Aquila, Piazzale Salvatore Tommasi 1, 67010 L'Aquila, Italy.
High homocysteine levels increase stroke recurrence and mortality risk in Chinese patients. This risk varies by stroke type, highlighting a complex relationship between homocysteine and cardiovascular disease.
Area of Science:
- Cardiovascular Science
- Neurology
- Clinical Research
Background:
- Homocysteine is a recognized risk factor for cardiovascular diseases, including stroke.
- The impact of elevated homocysteine on stroke recurrence has remained largely unevaluated.
- Conflicting clinical data previously hindered a consensus on homocysteine's role.
Discussion:
- This study investigates the association between homocysteine levels and stroke recurrence in Chinese patients.
- Elevated homocysteine correlated with increased risk of stroke recurrence and all-cause mortality.
- The association differed across stroke subtypes: atherothrombotic stroke and intracerebral hemorrhage showed increased risk, while lacunar stroke did not.
Key Insights:
- High homocysteine levels are linked to a greater risk of recurrent stroke and mortality in Chinese patients.
- The relationship between homocysteine and cardiovascular disease may be condition-specific, particularly for stroke.
- Specific stroke types like atherothrombotic stroke and intracerebral hemorrhage show a notable association with high homocysteine.
Outlook:
- Further research is needed to elucidate the mechanisms behind homocysteine's varied impact on different stroke types.
- Confirmation in diverse ethnic cohorts is crucial, especially for findings related to intracerebral hemorrhage.
- These results prompt re-evaluation of homocysteine's role in cardiovascular disease heterogeneity and clinical practice guidelines.
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