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Related Concept Videos

Long-term Potentiation01:35

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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 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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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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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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Modulation of synaptic plasticity by exercise.

Luis Bettio1, Jonathan S Thacker1, Craig Hutton1

  • 1Division of Medical Sciences, University of Victoria, Victoria, BC, Canada.

International Review of Neurobiology
|October 15, 2019
PubMed
Summary

Aerobic exercise enhances synaptic plasticity, improving learning and memory. This research explores how exercise-induced changes in synaptic efficacy may help combat neurodegenerative diseases in aging populations.

Keywords:
BDNFDentate gyrusExerciseHippocampusIGF-1LTDLTPSynaptic plasticityVEGF

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Area of Science:

  • Neuroscience
  • Exercise Physiology
  • Molecular Biology

Background:

  • Synaptic plasticity, including long-term potentiation (LTP) and long-term depression (LTD), underlies learning and memory.
  • Experience-dependent changes in synaptic communication involve structural, molecular, and genetic alterations in the brain.
  • Understanding these processes is crucial for developing cognitive enhancement strategies.

Purpose of the Study:

  • To review evidence that aerobic exercise enhances LTP and regulates LTD mechanisms.
  • To identify molecular mechanisms underlying exercise-mediated synaptic efficacy changes.
  • To explore the potential of these findings for neurodegenerative disease management.

Main Methods:

  • Review of existing experimental findings on aerobic exercise and synaptic plasticity.
  • Analysis of molecular mechanisms involved in exercise-induced synaptic efficacy modulation.
  • Synthesis of research to connect exercise, synaptic function, and neurodegeneration.

Main Results:

  • Aerobic exercise reliably enhances long-term potentiation (LTP).
  • Exercise influences molecular mechanisms regulating long-term depression (LTD).
  • Multiple laboratories have confirmed and expanded upon exercise's effects on synaptic efficacy.

Conclusions:

  • Aerobic exercise positively modulates synaptic plasticity, impacting learning and memory.
  • Exercise-induced synaptic changes offer potential therapeutic avenues for neurodegenerative diseases.
  • Further research into these mechanisms can aid in supporting cognitive health in aging individuals.