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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

1.6K
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...
1.6K
Seizures: Classification01:13

Seizures: Classification

2.1K
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.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
2.1K
Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

1.6K
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...
1.6K
Antiepileptic Drugs: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

2.2K
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...
2.2K
Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

1.2K
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...
1.2K
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

1.1K
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...
1.1K

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Related Experiment Video

Updated: Mar 25, 2026

Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons

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[Genes Responsible for Epileptic Syndromes].

Mitsuhiro Kato1

  • 1Department of Pediatrics, Showa University School of Medicine.

Brain and Nerve = Shinkei Kenkyu No Shinpo
|February 14, 2016
PubMed
Summary

Epileptic syndrome genetics has advanced significantly, revealing diverse molecular mechanisms beyond channelopathies. Precision medicine requires integrated diagnostic and therapeutic frameworks, especially in Japan.

Area of Science:

  • Neurogenetics
  • Molecular mechanisms of epilepsy
  • Epileptic syndromes

Context:

  • Over 20 years of gene discovery for epileptic syndromes, including sporadic epileptic encephalopathies like Ohtahara syndrome, West syndrome, and focal cortical dysplasia.
  • Initial understanding of epilepsy as a channelopathy has expanded to include interneuronopathy, synaptic vesicle release, and mTOR signaling pathways.

Purpose:

  • To highlight the evolution of understanding the genetic and molecular basis of epileptic syndromes.
  • To emphasize the emergence of precision medicine driven by molecular mechanisms.
  • To underscore the need for infrastructural development in Japan for molecular diagnosis and personalized therapy.

Summary:

  • Identification of numerous causative genes for epileptic syndromes has broadened the understanding of underlying molecular mechanisms.

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Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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  • Next-generation sequencing enables clinical gene analysis, facilitating a shift towards precision medicine.
  • The integration of molecular diagnosis and personalized therapy is crucial for advancing epilepsy care.

    • Impact:

    • Advances in genetic and molecular understanding pave the way for targeted therapies.
    • The development of precision medicine offers new hope for patients with complex epileptic syndromes.
    • Establishing robust frameworks for molecular diagnosis and personalized treatment is essential for improving patient outcomes.