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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

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...
Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

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...
Seizures: Classification01:13

Seizures: Classification

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:
Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

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 their...

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Related Experiment Video

Updated: Jul 17, 2026

Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy
08:26

Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy

Published on: October 19, 2021

Serotonin and epilepsy.

Gyorgy Bagdy1, Valeria Kecskemeti, Pal Riba

  • 1Laboratory of Neurochemistry and Experimental Medicine, National Institute of Psychiatry and Neurology, Budapest, Hungary. bag13638@mail.iif.hu

Journal of Neurochemistry
|January 11, 2007
PubMed
Summary

Serotonin (5-HT) plays a key role in epilepsy. Modulating serotonin levels and its receptors can inhibit or promote seizures, impacting epilepsy pathogenesis.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Epileptology

Background:

  • Serotonergic neurotransmission significantly influences experimental seizure activity.
  • Elevating extracellular serotonin (5-HT) generally inhibits seizures, while depletion lowers seizure thresholds.

Purpose of the Study:

  • To review the role of serotonergic systems in epilepsy.
  • To elucidate the involvement of specific 5-HT receptor subtypes in epileptogenesis.

Main Methods:

  • Review of existing literature on serotonin and seizures.
  • Analysis of studies involving 5-HT manipulation and receptor knockout models.
  • Examination of human epileptic tissue and imaging data.

Main Results:

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Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
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  • Serotonin reuptake inhibitors and 5-HTP inhibit seizures; 5-HT depletion lowers seizure threshold.
  • Specific 5-HT receptor subtypes (5-HT1A, 5-HT2C, 5-HT3, 5-HT7) are implicated in seizure activity.
  • Mutant mice lacking 5-HT1A or 5-HT2C receptors exhibit altered seizure susceptibility.

    • Conclusions:

    • Endogenous serotonin, its receptor activity, and related pharmaceuticals are significant in epilepsy pathogenesis.
    • Targeting serotonergic pathways offers potential therapeutic strategies for epilepsy.