期刊
AGING-US
卷 12, 期 4, 页码 3175-3189出版社
IMPACT JOURNALS LLC
DOI: 10.18632/aging.102793
关键词
Alzheimer's disease; ligustilide; SAMP8 mice; mitochondrial dysfunction; neuroinflammation
资金
- National Natural Science Foundation of China [81673627]
- Guangzhou Science Technology and Innovation Commission Technology Research Projects [201805010005]
Alzheimer's disease (AD) is an age-related neurodegenerative disease. The main active component in Angelica sinensis, ligustilide, has been reported to have the protective effect on AD. Whether ligustilide could protect against age-induced dementia is still unknown. In this study, we used an aging model, SAMP8 mice to investigate the neuroprotective effect of ligustilide. The behavioral tests (Morris water maze, object recognition task, open field test and elevated plus maze) results showed that ligustilide could improve the memory deficit in SAMP8 mice. For mechanism study, we found that the protein level of P-Drp1 (fission) was decreased and the levels of Mfn1 and Mfn2 (fusion) were increased after ligustilide treatment in animals and cells. Ligustilide increased PAMPK and ATP levels. Malondialdehyde and superoxide dismutase activity results indicated that ligustilide exerts antioxidant effects by reducing the level of oxidative stress markers. In addition, ligustilide improved neural function and alieved apoptosis and neuroinflammation. These findings have shown that ligustilide treatment improves mitochondrial function in SAMP8 mice, and improves memory loss.
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