期刊
BLOOD
卷 115, 期 8, 页码 1650-1653出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2009-06-230110
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资金
- Grants-in-Aid for Scientific Research [20390278, 22790923] Funding Source: KAKEN
Reperfusion after brain ischemia causes thrombus formation and microcirculatory disturbances, which are dependent on the platelet glycoprotein Ib-von Willebrand factor (VWF) axis. Because ADAMTS13 cleaves VWF and limits platelet-dependent thrombus growth, ADAMTS13 may ameliorate ischemic brain damage in acute stroke. We investigated the effects of ADAMTS13 on ischemia-reperfusion injury using a 30-minute middle cerebral artery occlusion model in Adamts13(-/-) and wild-type mice. After reperfusion for 0.5 hours, the regional cerebral blood flow in the ischemic cortex was decreased markedly in Adamts13(-/-) mice compared with wild-type mice (P < .05), which also resulted in a larger infarct volume after 24 hours for Adamts13(-/-) compared with wild-type mice (P < .01). Thus, Adamts13 gene deletion aggravated ischemic brain damage, suggesting that ADAMTS13 may protect the brain from ischemia by regulating VWF-platelet interactions after reperfusion. These results indicate that ADAMTS13 may be a useful therapeutic agent for stroke. (Blood. 2010;115:1650-1653)
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