期刊
NEUROSURGERY
卷 63, 期 1, 页码 122-125出版社
OXFORD UNIV PRESS INC
DOI: 10.1227/01.NEU.0000335079.70222.8D
关键词
C5; C5a; C5a receptor; complement cascade; murine; stroke
资金
- NINDS NIH HHS [R01 NS040409] Funding Source: Medline
OBJECTIVE: The complement cascade has been implicated in cerebral ischemia/reperfusion injury. To develop clinically useful therapies that successfully manipulate the complement cascade, the individual roles of its components must be clearly defined. Previous studies have shown that C5 inhibition improves outcome after experimental stroke. in this study, we investigated the role of C5a in stroke injury by inhibiting its activity at the receptor level. METHODS: C5a receptor antagonist or vehicle was administered to mice before temporary middle cerebral artery occlusion. Stroke outcomes were assessed 24 hours later in all mice using both neurological deficit scores and cerebral infarct volumes. RESULTS: Animals treated with C5a. receptor antagonist experienced significantly decreased infarct volume and demonstrated an improving trend in neurological function. CONCLUSION: These findings demonstrate that modulation of C5a receptor activity significantly alters the degree of neurological damage after experimental reperfused stroke.
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