Abstract Title:

The anti-amnesic effects of luteolin against amyloid beta(25-35) peptide-induced toxicity in mice involve the protection of neurovascular unit.

Abstract Source:

Neuroscience. 2009 Sep 15;162(4):1232-43. Epub 2009 May 13. PMID: 19442706

Abstract Author(s):

R Liu, M Gao, G-F Qiang, T-T Zhang, X Lan, J Ying, G-H Du

Article Affiliation:

National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, China.


Luteolin (3',4',5,7-tetrahydroxyflavone) is an important member of the flavonoid family. It exhibits strongly anti-inflammatory, antioxidant and phytoestrogen-like activities. In the present study, we examined the anti-amnesic and protective effects of luteolin against Abeta(25-35)-induced toxicity in mice. Mice were given an i.c.v. injection of aggregated Abeta(25-35) peptide. The learning and memory impairments, ultrastructural changes of cerebral cortex, cerebrovascular dysfunction and neuronal changes were detected after oral administration of luteolin continuously for 8 days. Our results demonstrate that oral administration of luteolin for 8 days for those Abeta(25-35)-induced amnesic mice conferred robust neurovascular protection in Abeta(25-35)-induced amnesia, involving the improvement of the spatial learning and memory capabilities, the modulation of microvascular function, the increase of regional cerebral blood flow values, the clearance of reactive oxygen species, the improvement of cholinergic neuronal system, and the increase of brain-derived neurotrophic factor level and its receptor tyrosine kinase B expression in cerebral cortex.

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