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Int J Clin Exp Pathol. 2015 Jun 1;8(6):6740-7. eCollection 2015.

Protective effects of luteolin against cognitive impairment induced by infusion of Aβ peptide in rats.

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Department of Neurology, Yantaishan Hospital Yantai 264000, China.
Department of Neurology, Yeda Hospital Yantai 264000, China.
Department of Oncology, Shandong Province Tumor Hospital Jinan 250000, China.


Luteolin can be found in many traditional Chinese medicines, it's a falconoid compound derived from Lonicera japonica Thunb. This study aims to investigate the neuroprotective effects of luteolin against cognitive impairment induced by amyloid-β (Aβ) peptide and the underlying mechanisms in rats. The animal behavioral tests showed that luteolin could ameliorate Aβ-induced learning and memory impairment. In hippocampal tissue, the activity of choline acetyl transferase (ChAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) increased after treated by luteolin. Luteolin also reversed the increased activity of acetylcholine esterase (AchE). In hippocampi homogenate, the content of acetylcholine (Ach) increased, but malondialdehyde (MDA) reduced. Moreover, luteolin can increase Bcl-2/Bax ratio. This study demonstrated that luteolin could protect Alzheimer's disease (AD) rats against Aβ-induced cognitive impairment through regulating the cholinergic system and inhibiting oxidative injuries. The results suggesting that luteolin may have potential as a therapy for AD.


Alzheimer’s disease; Aβ peptide; Luteolin; antioxidant activity; neuroprotection

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