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相关概念视频

Neuroplasticity01:01

Neuroplasticity

344
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Long-term Potentiation01:25

Long-term Potentiation

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
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Long-term Depression01:03

Long-term Depression

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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
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Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists01:30

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists

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Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
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Desensitization and Tachyphylaxis01:20

Desensitization and Tachyphylaxis

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Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
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Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

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Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
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相关实验视频

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Slice Patch Clamp Technique for Analyzing Learning-Induced Plasticity
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腺素和皮层可塑性

Irene Martínez-Gallego1, Antonio Rodríguez-Moreno1

  • 1Laboratory of Cellular Neuroscience and Plasticity, Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Seville, Spain.

The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
|March 18, 2024
PubMed
概括

星球细胞释放的腺素是大脑发育期间突触可塑性的关键. 它影响长期的可塑性,并为适应性行为改进大脑电路.

科学领域:

  • 神经科学是一个神经科学.
  • 神经生物学 神经生物学 神经生物学
  • 发育神经科学的发展神经科学.

背景情况:

  • 大脑可塑性,或突触可塑性,涉及神经系统的变化,以应对经验.
  • 产后发育看到环境因素塑造突触可塑性,对于成人大脑电路至关重要.
  • 了解皮质地图的形成和修改是神经科学的一个关键挑战.

研究的目的:

  • 审查在产后发育期间腺在突触可塑性中的作用.
  • 探索腺在诱导和维持可塑性的机制.
  • 讨论大脑疾病中的腺受体和潜在的治疗方法.

主要方法:

  • 关于腺和突触可塑性的当前科学文献的综述.
  • 对腺在长期强化和抑郁症中的参与进行分析.
  • 检查天体细胞释放的腺信号通路.

主要成果:

  • 氨酸,可能来自天体细胞,直接参与诱导长期的突触可塑性.
  • 氨酸控制皮质突触中的可塑性窗口的持续时间.
  • 腺素信号传递与大脑发育的各个阶段有关.

结论:

关键词:
氨酸 (Adenosine) 是一种氨酸.星球细胞是星球细胞.皮质地图 - - 皮质地图.可塑性的关键时期.神经系统疾病 神经系统疾病突触性可塑性 突触性可塑性

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  • 氨酸是脑发育过程中突触可塑性的关键调节剂.
  • 向腺受体可能为神经系统疾病提供治疗策略.
  • 需要进一步的研究才能充分阐明腺在大脑中的复杂作用.