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相关概念视频

Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

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The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
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相关实验视频

Updated: Jun 11, 2025

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
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在小鼠和人类前额叶皮层中比较的转录基因节奏.

Jennifer N Burns1,2, Aaron K Jenkins1,2, Xiangning Xue3

  • 1Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219.

bioRxiv : the preprint server for biology
|October 10, 2024
PubMed
概括
此摘要是机器生成的。

前额叶皮层 (PFC) 中的昼夜节律在小鼠和人类中都保持不变,但有性别特定的阶段转移和独特的基因表达模式,影响了精神疾病研究.

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Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
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Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
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Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience

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Last Updated: Jun 11, 2025

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Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
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Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
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科学领域:

  • 神经科学是一个神经科学.
  • 基因组学就是基因组学.
  • 时间生物学 时间生物学

背景情况:

  • 前额叶皮层 (PFC) 的改变与精神疾病有关.
  • 循环基因表达节奏存在于大脑中,包括PFC,并且在疾病中被破坏.
  • 与动物相比,转化研究受到人类PFC专业化的挑战.

研究的目的:

  • 为了比较小鼠中间PFC (mPFC) 和人类前带膜皮层 (ACC) 和背侧PFC (DLPFC) 之间的转录节奏.
  • 为分子节奏的翻译研究提供基础.
  • 为了研究跨物种转录基因节奏的性别特异性.

主要方法:

  • RNA测序被用于转录组分析.
  • 进行了性别特定的跨物种比较.
  • 在小鼠mPFC和人类ACC/DLPFC中分析了节律转录.

主要成果:

  • 循环节律信号在物种和PFC子区域之间得到保护.
  • 在老鼠mPFC和人类PFC之间存在核心时钟基因表达的性别依赖的相位转移.
  • 转录基因节奏特征在很大程度上是独一无二的,在雌性中,小鼠mPFC和人类ACC的重叠率最高.
  • 核心生物过程显示了节奏转录的丰富性,具有区域和性别特异性的变化.

结论:

  • 转录基因节奏在进化上是保存的,但在人类PFC中显示出显著的进步.
  • 在用于精神疾病研究的动物模型中,必须考虑跨物种差异,特别是性别差异.
  • 这项研究为开发更准确的翻译模型提供了关键的见解.