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Epilepsy and Seizures: Overview

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...

Epilepsy ll: Types

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.

Antiepileptic Drugs: Glutamate Antagonists

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 l: Introduction

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,...

Seizures: Classification

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:

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic Drugs: Sodium Channel Blockers

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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Related Experiment Video

Updated: May 11, 2026

Sampling Cerebrospinal Fluid and Blood from Lateral Tail Vein in Rats During EEG Recordings

Sampling Cerebrospinal Fluid and Blood from Lateral Tail Vein in Rats During EEG Recordings

Published on: September 1, 2023

New research with diets and epilepsy.

J Helen Cross¹

¹UCL Institute of Child Health, Great Ormond Street Hospital for Children NHS Foundation Trust, London, & Young Epilepsy, Lingfield, UK. h.cross@ucl.ac.uk

Journal of Child Neurology

|May 18, 2013

Summary

The ketogenic diet, a long-standing epilepsy treatment, has seen a resurgence in research over the last 12 years. Current data confirm its efficacy and provide clearer guidance on its use.

Area of Science:

Neurology
Nutritional Science
Metabolic Disorders

Background:

The ketogenic diet has a historical role in epilepsy management.
Recent scientific literature has revitalized interest in its application.
Extensive research over the past 12 years has expanded understanding.

Purpose of the Study:

To review the current scientific data on the ketogenic diet for epilepsy.
To assess the benefits, efficacy, and utilization of the ketogenic diet.
To identify remaining questions and areas for future research.

Main Methods:

Literature review of scientific data from the past 12 years.
Analysis of evidence regarding ketogenic diet efficacy and benefits.
Evaluation of current understanding of diet utilization and patient selection.

Keywords:

epilepsy ketogenic diet

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Last Updated: May 11, 2026

Sampling Cerebrospinal Fluid and Blood from Lateral Tail Vein in Rats During EEG Recordings

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Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy

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Published on: October 19, 2021

Main Results:

Data demonstrate a clear benefit in the efficacy of the ketogenic diet.
Increased scientific data over the past decade highlight its effectiveness.
Improved understanding of appropriate utilization, diet types, and patient selection.

Conclusions:

The ketogenic diet is a well-supported treatment for epilepsy with proven efficacy.
Further research is needed to optimize patient selection and simplify administration.
Continued investigation will refine the application of this dietary therapy.