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相关概念视频

Neurons as Communicators of the Brain01:22

Neurons as Communicators of the Brain

Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
Cell Body
The cell body, also known...
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Classification of Neurotransmitters01:30

Classification of Neurotransmitters

Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
Neurotransmitters01:30

Neurotransmitters

Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
Excitatory and Inhibitory Effects of Neurotransmitters01:29

Excitatory and Inhibitory Effects of Neurotransmitters

When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of specific...

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相关实验视频

Updated: Jun 28, 2026

In vivo Interrogation of Central Nervous System Translatome by Polyribosome Fractionation
09:13

In vivo Interrogation of Central Nervous System Translatome by Polyribosome Fractionation

Published on: April 30, 2014

自闭症神经元:翻译问题?

Raymond J Kelleher1, Mark F Bear

  • 1Center for Human Genetic Research, Harvard-Partners Center for Genetics and Genomics, Massachusetts General Hospital, Program in Neuroscience and Department of Neurology, Harvard Medical School, Boston, MA 02115, USA. kelleher@helix.mgh.harvard.edu

Cell
|November 6, 2008
PubMed
概括

自闭症是一种复杂的遗传疾病,可能源于突触蛋白质合成中的问题. 这种途径可以解释自闭症的特征,如认知变化和聪明的能力.

科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 遗传学 是一个
  • 发展生物学 发展生物学

背景情况:

  • 自闭症是一种复杂的神经发育障碍,具有重要的遗传成分.
  • 单基因疾病越来越多地被认为是它们在理解自闭症发病过程中的作用.
  • 新出现的证据将自闭症中的分子缺陷与突触功能中断联系起来.

研究的目的:

  • 提出异常的突触蛋白质合成作为潜在的分子途径,有助于自闭症.
  • 探索突触蛋白质合成缺陷与自闭症现象型之间的联系.
  • 研究这些分子变化如何导致自闭症患者的认知障碍和智商能力.

主要方法:

  • 这项研究主要是理论性的,综合现有证据.
  • 它回顾了当前关于自闭症遗传因素的研究.
  • 它分析了突触功能和蛋白质合成背后的分子机制.

主要成果:

  • 单基因缺陷为研究自闭症的潜在机制提供了有价值的模型.
  • 影响突触蛋白质合成的分子缺陷与自闭症有关.
  • 异常的突触蛋白质合成被提出为自闭症表型的统一途径.

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Isolation and Quantification of Axonal mRNAs Using Porous Membrane Inserts and RTddPCR
07:06

Isolation and Quantification of Axonal mRNAs Using Porous Membrane Inserts and RTddPCR

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Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism
08:44

Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism

Published on: October 17, 2025

相关实验视频

Last Updated: Jun 28, 2026

In vivo Interrogation of Central Nervous System Translatome by Polyribosome Fractionation
09:13

In vivo Interrogation of Central Nervous System Translatome by Polyribosome Fractionation

Published on: April 30, 2014

Isolation and Quantification of Axonal mRNAs Using Porous Membrane Inserts and RTddPCR
07:06

Isolation and Quantification of Axonal mRNAs Using Porous Membrane Inserts and RTddPCR

Published on: February 6, 2026

Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism
08:44

Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism

Published on: October 17, 2025

结论:

  • 突触蛋白质合成中的缺陷代表了导致自闭症的合理机制.
  • 这种途径可能是各种自闭症现象的基础,包括认知和社会差异.
  • 对自闭症中突触蛋白合成的进一步研究是有必要的.