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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
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Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
Structure and Function of Neurons
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Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

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Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
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Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

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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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Glial Cells01:04

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Seizures: Classification01:13

Seizures: Classification

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
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Focal Seizures
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LRRC8-Mediated Glutamate Release from Astrocytes Is Not Increased During the Initiation of Experimental Temporal Lobe Epilepsy.

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Related Experiment Video

Updated: Nov 15, 2025

Analyzing the Size, Shape, and Directionality of Networks of Coupled Astrocytes
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Analyzing the Size, Shape, and Directionality of Networks of Coupled Astrocytes

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Astrocytes and Epilepsy.

Devin K Binder1, Christian Steinhäuser2

  • 1Center for Glial-Neuronal Interactions, Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA, USA. dbinder@ucr.edu.

Neurochemical Research
|March 4, 2021
PubMed
Summary
This summary is machine-generated.

Astrocytes, critical brain cells, are increasingly linked to epilepsy development. Targeting astrocyte-specific functions offers promising new therapeutic strategies for seizure disorders.

Keywords:
AdenosineAstrocyteEpilepsyGap junctionGlutamatePotassium

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Area of Science:

  • Neuroscience
  • Epileptology
  • Astrocyte Biology

Background:

  • Astrocytes play a crucial role in maintaining brain homeostasis, including ion and neurotransmitter balance.
  • Dysregulation of astrocyte functions, such as potassium and glutamate transport, is implicated in neuronal hyperexcitability.
  • Alterations in astrocyte gap junctions and metabolism are associated with epileptogenesis.

Purpose of the Study:

  • To review the critical role of astrocytes in seizure generation and epilepsy.
  • To highlight specific astrocytic changes observed across various epilepsy types.
  • To underscore the potential of astrocyte-specific therapeutic targets.

Main Methods:

  • Literature review and synthesis of current research on astrocytes and epilepsy.
  • Analysis of studies focusing on astrocyte channels, transporters, metabolism, and gap junctions.
  • Examination of astrocytic alterations in temporal lobe epilepsy, tuberous sclerosis, tumor-associated epilepsy, and post-traumatic epilepsy.

Main Results:

  • Astrocytic dysfunction in maintaining potassium, glutamate, water, and adenosine homeostasis is linked to hyperexcitability.
  • Altered gap junctional coupling in astrocytes contributes to epileptogenesis.
  • Specific astrocytic changes are evident in diverse epilepsy syndromes.

Conclusions:

  • Astrocytes are central players in the pathophysiology of epilepsy.
  • Understanding astrocyte alterations provides a strong rationale for developing novel, astrocyte-specific treatments.
  • Targeting astrocyte-specific pathways represents a promising avenue for future epilepsy therapies.