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Related Concept Videos

Long-term Potentiation01:35

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.
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Long-term Potentiation01:25

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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
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Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

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Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
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Excitatory and Inhibitory Effects of Neurotransmitters01:29

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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...
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Neurochemical Transmission: Sites of Drug Action01:26

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Neurochemical transmission, the conduction of electrical impulses between neurons mediated by neurotransmitters, plays a vital role in various physiological processes. Autonomic drugs exert their effects by modulating neurotransmission within the autonomic nervous system. For instance, drugs such as hemicholinium block the precursor uptake necessary for synthesizing acetylcholine, an essential autonomic neurotransmitter. Following synthesis, neurotransmitters are stored in vesicles. Metyrosine...
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Postsynaptic Potential (PSP)01:32

Postsynaptic Potential (PSP)

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Postsynaptic potential (PSP) refers to a change in the electrical potential of a neuron when neurotransmitters released by presynaptic neurons bind to postsynaptic receptors. This potential can either be excitatory, leading to depolarization and ultimately action potential generation, or inhibitory, leading to hyperpolarization and suppression of the postsynaptic neuron.
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TRPV1 in the central nervous system: synaptic plasticity, function, and pharmacological implications.

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    Progress in Drug Research. Fortschritte Der Arzneimittelforschung. Progres Des Recherches Pharmaceutiques
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    PubMed
    Summary

    The Transient Receptor Potential Vanilloid 1 (TRPV1) channel is crucial in the central nervous system (CNS) for functions beyond pain, including synaptic plasticity, learning, and addiction. Research highlights its potential as a novel therapeutic target for brain disorders.

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    Area of Science:

    • Neuroscience
    • Molecular Biology
    • Pharmacology

    Background:

    • Transient Receptor Potential Vanilloid 1 (TRPV1) is known for its role in the peripheral nervous system's pain pathways.
    • Emerging evidence reveals TRPV1's involvement in diverse central nervous system (CNS) functions, including emotional regulation, stress response, and thermoregulation.

    Purpose of the Study:

    • To review the expression patterns and signaling mechanisms of TRPV1 in the CNS.
    • To explore the role of TRPV1 in central nervous system functions, with a specific focus on synaptic plasticity.
    • To discuss the potential pharmacological applications of targeting TRPV1 in the brain.

    Main Methods:

    • Literature review of existing studies on TRPV1 expression, signaling, and function in the CNS.
    • Analysis of research investigating TRPV1's role in synaptic plasticity, learning, memory, and addiction.
    • Examination of translational potential from animal models to human therapeutics.

    Main Results:

    • TRPV1 is expressed across various regions of the CNS and is activated by multiple stimuli.
    • TRPV1 plays a significant role in synaptic plasticity, influencing learning and memory processes.
    • TRPV1's involvement extends to fear, anxiety, stress, and reward pathways.

    Conclusions:

    • TRPV1 is a key regulator of synaptic plasticity and other critical CNS functions.
    • The multimodal activation and broad functional roles of TRPV1 present significant therapeutic opportunities for neurological and psychiatric disorders.
    • Further research into TRPV1 in the CNS is warranted due to its translational potential for human health.