期刊
CURRENT ALZHEIMER RESEARCH
卷 19, 期 9, 页码 667-673出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1567205020666221019124543
关键词
APP; PS1 mice; Alzheimer's disease; AMPAR; early memory impairment; neurofibrillary tangles; western blotting
This study explores the neurobiological mechanisms of early AD damage and finds that memory impairment occurs as early as 4 months in APP/PS1 mice and worsens with age. The findings have important implications for understanding the mechanism of early AD.
Aims Exploring the neurobiological mechanisms of early AD damage. Background The early diagnosis of Alzheimer's disease (AD) has a very important impact on the prognosis of AD. However, the early symptoms of AD are not obvious and difficult to diagnose. Existing studies have rarely explored the mechanism of early AD. AMPARs are early important learning memory-related receptors. However, it is not clear how the expression levels of AMPARs change in early AD. Objective We explored learning memory abilities and AMPAR expression changes in APP/PS1 mice at 4 months, 8 months, and 12 months. Methods We used the classic Morris water maze to explore the learning and memory impairment of APP/PS1 mice and used western blotting to explore the changes in AMPARs in APP/PS1 mice. Results We found that memory impairment occurred in APP/PS1 mice as early as 4 months of age, and the impairment of learning and memory gradually became serious with age. The changes in GluA1 and p-GluA1 were most pronounced in the early stages of AD in APP/PS1 mice. Conclusion Our study found that memory impairment in APP/PS1 mice could be detected as early as 4 months of age, and this early injury may be related to GluA1.
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