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从营养模式到行为:高脂肪饮食对大鼠的抑制控制,大脑基因表达和新陈代谢的影响
Diego Ruiz-Sobremazas1,2, Ana Cristina Abreu3, Ángeles Prados-Pardo1
1Center for Welfare and Social Inclusion of the University of Almeria, Crta. Sacramento s/n, La Cañada de San Urbano 04120, Spain.
ACS chemical neuroscience
|November 28, 2024
概括
在大鼠中,高脂肪饮食 (HFD) 增加了运动冲动性,但改善了决策. 这种饮食改变了前皮层基因调节和脂肪酸代谢,影响了行为和大脑可塑性.
科学领域:
- 神经科学是一个神经科学.
- 营养科学 营养科学
- 行为科学 行为科学
背景情况:
- 冲动和强迫行为与抑制控制缺陷有关.
- 饮食显著影响生理和行为发展.
- 高脂肪饮食 (HFD) 对抑制控制的影响需要进一步研究.
研究的目的:
- 研究高脂肪饮食 (HFD) 对大鼠冲动和强迫行为的影响.
- 分析HFD对大脑可塑性和前皮层基因调节的影响.
- 检查HFD暴露后的代谢和脂肪酸概况.
主要方法:
- 40只Wistar大鼠从出生后的第33天 (PND) 到第77天 (PND) 接受了HFD或对照食饮食.
- 行为评估包括变量延迟到信号 (VDS),五项选择串行反应时间任务 (5-CSRTT),延迟折扣任务 (DDT) 和动物博任务 (rGT).
- 进行了额叶皮层的基因分析和便样本的代谢基因/脂肪酸分析.
主要成果:
- 暴露于HFD的老鼠表现出增加的运动冲动性,但在认知冲动性上没有显著变化.
- 令人惊的是,HFD组显示出减少了冲动性决策.
- 额叶皮质大脑可塑性,多巴胺基因调节和脂肪酸水平变化的异常在HFD组中观察到.
结论:
- 早期接触HFD可能会对冲动性的运动和认知方面产生不同的影响.
- HFD可能会诱导前额叶皮层的神经生物学变化,影响行为和大脑可塑性.
- 饮食干预措施需要考虑管理行为控制和相关的神经生物学途径.
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