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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...
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
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...
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...
Epilepsy ll: Types01:22

Epilepsy ll: Types

Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
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,...

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Related Experiment Video

Updated: Jun 2, 2026

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
09:07

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins

Published on: August 15, 2017

Elucidating the Complex Interactions between Stress and Epileptogenic Pathways.

Aaron R Friedman1, Luisa P Cacheaux, Sebastian Ivens

  • 1Department of Integrative Biology, University of California-Berkeley, Berkeley, CA 94720-3140, USA.

Cardiovascular Psychiatry and Neurology
|May 7, 2011
PubMed
Summary
This summary is machine-generated.

Stress and stress hormones can worsen epilepsy by affecting brain pathways involved in epileptogenesis. Understanding these complex interactions is key to developing new epilepsy treatments.

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A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
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A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

Published on: November 13, 2016

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Last Updated: Jun 2, 2026

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
09:07

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins

Published on: August 15, 2017

A Model of Epileptogenesis in Rhinal Cortex-Hippocampus Organotypic Slice Cultures
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A Model of Epileptogenesis in Rhinal Cortex-Hippocampus Organotypic Slice Cultures

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A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
08:23

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

Published on: November 13, 2016

Area of Science:

  • Neuroscience
  • Pathology
  • Endocrinology

Background:

  • Clinical and experimental evidence links stress to epilepsy development and progression.
  • Stress hormones are implicated as key mediators in the exacerbation of epilepsy.

Purpose of the Study:

  • To review the mechanisms by which stress exacerbates epilepsy.
  • To explore the temporal dynamics and complexities of stress-epilepsy interactions.
  • To advocate for advanced analytical approaches in studying epileptogenesis.

Main Methods:

  • Review of existing clinical and experimental data.
  • Analysis of stress-induced pathways and their intersection with epileptogenesis.
  • Discussion of factors like blood-brain barrier, neuron-glia interactions, and inflammation.

Main Results:

  • Stress, particularly through stress hormones, can worsen epilepsy pathology.
  • Stress-epilepsy interactions are complex, involving temporal aspects and multiple biological pathways.
  • Blood-brain barrier dysfunction, neuron-glia signaling, and inflammatory pathways play significant roles.

Conclusions:

  • Stress is a significant factor in epilepsy pathology, acting through various mechanisms.
  • A comprehensive understanding of epileptogenesis requires investigating early pathological events beyond seizures.
  • Global analytical tools like microarrays are essential for profiling complex, multifactorial processes in epilepsy.