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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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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: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

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Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
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Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

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γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
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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.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
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Antiepileptic Drugs: Calcium Channel Blockers01:17

Antiepileptic Drugs: Calcium Channel Blockers

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Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
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Related Experiment Video

Updated: Mar 13, 2026

Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice
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Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice

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Managing drug-resistant epilepsy: challenges and solutions.

Linda Dalic1, Mark J Cook2

  • 1Department of Neurology, Austin Health.

Neuropsychiatric Disease and Treatment
|October 30, 2016
PubMed
Summary

Drug-resistant epilepsy (DRE) affects 20-30% of epilepsy patients despite new antiepileptic drugs (AEDs). Understanding DRE mechanisms and multidisciplinary management are crucial for improving patient outcomes and reducing mortality risks.

Keywords:
drug-resistant epilepsymanagementpharmacoresistantreview

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Related Experiment Videos

Last Updated: Mar 13, 2026

Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice
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Area of Science:

  • Neurology
  • Pharmacology
  • Epileptology

Background:

  • Drug-resistant epilepsy (DRE) affects 20-30% of epilepsy patients, presenting challenges beyond intractable seizures.
  • DRE involves complex neurobiochemical changes, cognitive decline, and psychosocial dysfunction.
  • The heterogeneity of DRE complicates both research and clinical management.

Approach:

  • Review of current hypotheses for pharmacological resistance in DRE: transporter, target, network, and intrinsic severity.
  • Emphasis on a multidisciplinary approach for DRE management, involving various healthcare professionals.
  • Consideration of patient-specific factors like comorbidities, economic burden, and treatment adherence.

Key Points:

  • Mechanisms of DRE remain incompletely understood, with multiple contributing factors.
  • Comorbidities, especially psychiatric conditions, are prevalent and impact health outcomes.
  • Higher mortality rates in DRE underscore the importance of effective seizure control.

Conclusions:

  • Resective surgery offers the highest seizure control rates but is not universally applicable.
  • Optimizing antiepileptic drug (AED) therapy, managing comorbidities, and patient education are vital.
  • Further research into causative pathologies is needed to guide improved DRE therapies.