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  • Title: Chrysin improves cognitive deficits and brain damage induced by chronic cerebral hypoperfusion in rats.
    Author: He XL, Wang YH, Bi MG, Du GH.
    Journal: Eur J Pharmacol; 2012 Apr 05; 680(1-3):41-8. PubMed ID: 22314218.
    Abstract:
    Chronic cerebral hypoperfusion, induced by permanent occlusion of bilateral common carotid arteries (2VO), is related to neurological disorders and contributes to cognitive decline. Chrysin (5,7-dihydroxyflavone) is an important member of the flavonoid family. The aim of this study is to investigate the effects of chrysin on cognitive deficits and brain damage in this rat 2VO model. At 52days after ligation, the escape latency in Morris water maze was significantly increased in rats subjected to 2VO, the neuronal damage was also increased accompanied by a large proliferation in glial fibrillary acidic protein (GFAP) immunoreactivity with marked white matter lesions, and neuronal cell apoptosis, all of which were significantly alleviated by long treatment of chrysin (30mg/kg). Biochemical examinations revealed that chrysin decreased lipid peroxide, reduced the increased activities of superoxide dismutase, and attenuated the decreased activities of glutathione peroxidase in 2VO rats. The results suggest that chrysin may have therapeutic potential for the treatment of neurodegeneration and dementia caused by decreased cerebral blood flow, which is most likely related, at least in part, to its anti-inflammatory and antioxidant properties.
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