短期和长期卡路里限制转录密码与焦虑类行为,衰老和神经退行之间的交叉:对药物重定向的影响
Agnes Hazi1, Esmaeil Ebrahimie2,3,4, Elizabeth A Levay1,5
1School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia.
Frontiers in behavioral neuroscience
|December 14, 2023
概括
卡路里限制 (CR) 减少了老鼠的焦虑类行为. 短期和长期的CR产生了明显的基因表达变化,为情绪障碍和肥胖提供了新的治疗点.
科学领域:
- 神经科学和分子生物学
- 代谢研究研究 代谢研究
背景情况:
- 卡路里限制 (CR) 是一种已知的治疗焦虑,衰老和肥胖的干预措施.
- 了解CR作用背后的分子机制对于治疗开发至关重要.
研究的目的:
- 在大鼠大脑和内分泌组织中研究短期和长期CR的行为和转录效应.
- 为了识别与CR不同持续时间相关的独特分子特征.
- 基于CR诱导的转录基因变化,探索潜在的药物重定向机会.
主要方法:
- 使用加高迷宫的行为评估,在蒙罩维斯特和长埃文斯雄性大鼠中进行.
- 脑下垂体,杏仁体,前额叶皮质,垂体和上腺体的转录组概况.
- 先进的统计建模来分析跨组织和治疗持续时间的基因表达数据.
- 文本挖掘和基于文献的药物重新利用.
主要成果:
- 短期和长期的CR都减少了类似焦虑的行为.
- 在短期和长期CR中观察到明显的转录基因特征.
- 发现的关键基因包括转录因子,如指蛋白45-like (短期) 和指BTB域含有两个 (长期).
- 与神经退行,压力和肥胖相关的短期CR基因特征;与神经系统相关的长期特征.
结论:
- 根据其持续时间,CR具有不同的分子效应.
- CR对基因表达的影响为其对情绪调节和代谢健康的益处提供了洞察力.
- 对于情绪障碍,神经退行症和肥胖症的新型治疗候选者可以通过CR转录组签名来识别.
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