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J Zhejiang Univ Sci B. 2014 Mar;15(3):272-80. doi: 10.1631/jzus.B1300166.

Buyang Huanwu decoction increases angiopoietin-1 expression and promotes angiogenesis and functional outcome after focal cerebral ischemia.

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  • 1Brain Medicine Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China; Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China; Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.


Buyang Huanwu decoction (BYHWD), a traditional Chinese herbal prescription, has been widely used clinically to treat stroke in China for hundreds of years; however, the mechanisms of this drug for stroke treatment are still unclear. This study aims to observe the cerebral angiogenesis effects of BYHWD on chronic brain injury after focal cerebral ischemia in rats and to explore its possible mechanisms. The ischemia was induced by occlusion of the right middle cerebral artery for 90 min. BYHWD (12.5 and 25.0 g/(kg ∙ d), equivalent to the dry weight of the raw materials) was orally administered twice a day beginning 2 h after surgery. BYHWD significantly attenuated the neurological dysfunction, infarct volume, and brain atrophy after ischemia. There was a significant increase in the microvessel density, as assessed by immunofluorescence CD31, and a significant increase in angiopoietin-1 (Ang-1) in the penumbra areas of the rats was shown by immunohistochemical staining and Western blotting. The results indicate that the neurorestorative effects of BYHWD are associated with angiogenesis and the enhancement of the expressions of Ang-1 on chronic brain injury after focal cerebral ischemia.

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