Melatonin Improves Short-Term Spatial Memory in a Mouse Model of Alzheimer's Disease

褪黑激素可改善阿尔茨海默病小鼠模型的短期空间记忆

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作者:Samah Labban, Fahad S Alshehri, Maher Kurdi, Yasser Alatawi, Badrah S Alghamdi

Conclusion

MLT could have a substantial potential to alleviate memory impairment in sporadic AD if introduced at early stages.

Methods

Four groups of mice (n = 10 per group) were prepared: control, AD (the D-galactose and AlCl3 AD model group), AD+MLT (AD mice treated with 80 mg/kg MLT), and AD+DON (AD mice treated with 3 mg/kg donepezil). We then used the object location and Y-maze tests to assess spatial memory in the four groups. Gene expression levels of brain-derived neurotrophic factor (Bdnf) and cAMP-responsive element-binding protein (Creb1) were measured using real-time polymerase chain reaction.

Purpose

The present study aimed to explore the possible prophylactic effects of MLT against spatial memory deficits in a sporadic mouse model of AD induced by D-galactose and aluminium chloride (AlCl3).

Results

We found that MLT improved spatial memory in the sporadic AD mice. MLT ameliorated Creb1 gene expression and significantly increased Bdnf gene expression in the hippocampus of AD model mice compared with the AD group.

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