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Published on: May 6, 2014
Role of complement in the pathomechanism of atherosclerotic vascular diseases
Gábor Széplaki1, Lilian Varga, George Füst
13rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary.
Insights
The complement system plays a key role in ischemic stroke and related conditions. Inhibiting complement activation may offer a new therapeutic strategy for stroke patients.
Area of Science:
- Immunology
- Neurology
- Cardiovascular Science
Background:
- The complement system is a crucial part of innate immunity.
- Its dysregulation is implicated in various inflammatory and cardiovascular diseases.
- Understanding complement's role in cerebrovascular diseases is vital for developing new treatments.
Purpose of the Study:
- To review the role of complement activation in atherogenesis and ischemia-reperfusion (I/R) injury.
- To highlight complement-dependent mechanisms in cerebrovascular diseases, including ischemic stroke and restenosis.
- To explore the correlation between complement activation and ischemic stroke outcomes.
Main Methods:
- Comprehensive literature review of complement's role in cardiovascular and cerebrovascular pathologies.
- Analysis of existing data and recent findings on complement activation in ischemic stroke.
- Correlation analysis between complement activation levels and disease severity/outcome.
Main Results:
- Complement activation is significantly involved in atherogenesis and I/R injury.
- Complement-dependent pathways contribute to the pathogenesis of cerebrovascular diseases like ischemic stroke and restenosis.
- Strong positive correlation observed between complement system activation and poor outcomes in ischemic stroke patients.
Conclusions:
- The complement system is a key player in the pathophysiology of ischemic stroke.
- The degree of complement activation correlates with stroke severity and prognosis.
- Targeting complement activation presents a promising therapeutic avenue for managing ischemic stroke.
Abstract:
In the first part of the review article authors summarize our knowledge on the role of complement in atherogenesis and the development of I/R injury as well as the complement activation products which contribute to these pathological processes. In the second part of the review authors highlight the complement dependent processes which participate at the pathomechanism of cerebrovascular diseases, the development of cerebral infarct in ischemic stroke and the restenosis which may occur a part of the patients who underwent eversion endartectomy operation. Literature data and the recently published data of the authors' group indicate that the complement system is strongly activated at the onset of the ischemic stroke and the extent of this activation is positively correlated with the bad outcome of the disease. This observation may be one of the starting points of the introduction of the complement activation-inhibiting therapy in ischemic stroke.
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