期刊
LABORATORY ANIMALS
卷 50, 期 4, 页码 275-285出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0023677215615269
关键词
APPswePS1dE9 mouse; Alzheimer's disease; sex difference
资金
- Science & Technology, Department of Sichuan Province [2012JY0014]
- Applied Basic Research Project in Sichuan Province [2014JY0118]
- Capacity Promotion Project of the National Natural Fund [0040105401092]
The pathogenesis of Alzheimer's disease (AD), a type of neurodegenerative disease characterized by learning and memory impairment, is often associated with pathological features, such as amyloid-beta (A) accumulation and insulin resistance. The transgenic mouse, APPswePS1dE9 (APP/PS1), is one of the most commonly used animal models in pathogenesis studies of AD. The purpose of this study is to investigate the sex differences between APP/PS1 mice in the pathogenesis of AD. The impairment of glucose and insulin tolerance was found to develop earlier in male APP/PS1 mice than in females. Plasma insulin levels were significantly decreased in male APP/PS1 mice, while total cholesterol levels in male APP/PS1 mice were higher than those in females. Triglyceride levels in male mice in both the wild-type (WT) and APP/PS1 groups were higher than in their female littermates. Soluble and insoluble A levels in female APP/PS1 mouse brains were higher than those in males. And the learning and memorizing abilities of female APP/PS1 mice were poorer than those of males. Our results concluded that there were sex differences in A formation, pancreatic islet function and insulin sensitivity between male and female APP/PS1 mice during the pathogenesis of AD.
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