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- W2772360682 abstract "The cell fate regulator Fas-associated death domain (FADD) balances cell death with non-apoptotic actions via its phosphorylated form. A recent study associated loss of cortical FADD with cognitive decline and increased risk of clinical dementia. Since the activation of cortical α2A-adrenoceptors improved memory deficits in various animal models of working memory loss, the present study evaluated whether UK-14304, an α2-adrenoceptor agonist known to acutely regulate brain FADD forms, would improve cognitive function in middle-aged rats. Sprague-Dawley rats were treated with UK-14304 (0.3 or 1 mg/kg) or saline (1 mL/kg) for seven days. Cognitive performance was evaluated in the eight-arm radial maze. FADD protein content was measured in the prefrontal cortex and hippocampus by Western blot analysis. The results showed that UK-14304 (1 mg/kg) improved cognitive performance (less time: -310±45 s, p=0.025 and fewer errors: -2.75±1.06, p=0.043 to complete the maze) and increased FADD selectively in the hippocampus (+35±11%, p=0.029). Interestingly, hippocampal FADD content negatively correlated with the time ( r=-0.651, p<0.01) needed to complete the maze. Thus, better cognitive scores were associated with higher FADD hippocampal content. These results support a role for α2-adrenoceptors in ameliorating cognition and suggest FADD protein content as a possible correlate for cognitive performance." @default.
- W2772360682 created "2017-12-22" @default.
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- W2772360682 date "2017-12-06" @default.
- W2772360682 modified "2023-10-17" @default.
- W2772360682 title "Repeated treatment with the α2-adrenoceptor agonist UK-14304 improves cognitive performance in middle-age rats: Role of hippocampal Fas-associated death domain" @default.
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- W2772360682 doi "https://doi.org/10.1177/0269881117742667" @default.
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