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- W3136034895 abstract "To investigate the effects of alcohol intake on cognitive function and β-amyloid protein (Aβ) in APP/PS1 double-transgenic mice with Alzheimer's disease (AD). Sixty APP/PS1 transgenic male mice were randomized into seven groups: control group, 0.5% alcohol group, 1% alcohol group, 2% alcohol group, 3% alcohol group, and 4% alcohol group, with 10 non-transgenic B6C3F1 mice of the same genetic background as the negative control group. All mice were pair-fed a liquid diet containing alcohol before assessment of learning and memory using the Y-maze test, and of Aβ content and related enzyme activity on them. Immunohistochemistry was used to detect the expression of Aβ1–42, Aβ1–40, and β-amyloid precursor protein (β-APP) in the cerebral cortex. 3%, and 4% alcohol intake significantly impaired the learning and memory abilities. 2%, 3%, and 4% alcohol groups indicated a remarkable change in Aβ1–42 content, α-secretase and γ-secretase activities in the hippocampus, and β-APP in the cortex; 3% and 4% alcohol groups showed a significant increase in Aβ1–42 content, β-site amyloid cleavage enzyme 1 (BACE1) activity, and a significant decrease in α-secretase activity in the hippocampus or cortex; 2% and 3% alcohol groups showed a significant increase in Aβ1–40 content in the hippocampus or cortex; and 2%, 3%, and 4% alcohol groups showed an increase in the expression of Aβ1–42, Aβ1–40, and β-APP in the cortex; 1% alcohol groups showed a significant decline in the levels of Aβ1–42, Aβ1–40, β-APP, and BACE1 activity in the hippocampus, and γ-secretase activity in the hippocampus and cortex, and 1% alcohol group showed a significant increase of α-secretase activity in the hippocampus. Besides, 0.5% alcohol showed statistically significant effects on the reduction of BACE1 and γ-secretase activities in the hippocampus. Long-term intake of high-dose alcohol can induce cognitive deficits and improve the activity of β-APP decomposition-related enzymes, increase Aβ content and deposition, and initiate AD progression, while long-term intake of low-dose alcohol can antagonize excessive production of Aβ and slow down AD progression." @default.
- W3136034895 created "2021-03-29" @default.
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- W3136034895 date "2021-05-01" @default.
- W3136034895 modified "2023-09-23" @default.
- W3136034895 title "Effects of alcohol intake on cognitive function and β-amyloid protein in APP/PS1 transgenic mice" @default.
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- W3136034895 doi "https://doi.org/10.1016/j.fct.2021.112105" @default.
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