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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

928
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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Seizures: Classification01:13

Seizures: Classification

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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:
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Genetic Screens02:46

Genetic Screens

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Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
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Related Experiment Video

Updated: Dec 1, 2025

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

Published on: June 6, 2025

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Genetic Testing in Epilepsy.

David M Ritter1,2, Katherine Holland1,2

  • 1Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.

Seminars in Neurology
|November 11, 2020
PubMed
Summary
This summary is machine-generated.

Genetic testing for epilepsy is now common, identifying causes like chromosomal abnormalities and brain malformations. This review guides neurologists on appropriate genetic tests, interpretation, and patient counseling for better epilepsy care.

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Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy
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A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
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Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy
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Behavioral And Physiological Analysis In A Zebrafish Model Of Epilepsy

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Area of Science:

  • Clinical Neurology
  • Medical Genetics
  • Epilepsy Research

Background:

  • Widespread adoption of next-generation sequencing has increased genetic testing in epilepsy patients.
  • Genetic variants causing epilepsy manifest as syndromic disorders, metabolic issues, brain malformations, or signaling defects.

Purpose of the Study:

  • To review current genetic testing options for epilepsy.
  • To outline common genetic epilepsy causes and testing yield.
  • To propose a phenotype-driven algorithm for cost-effective genetic testing in epilepsy.

Main Methods:

  • Review of available genetic testing modalities and their applications in epilepsy.
  • Analysis of data on the prevalence of genetic epilepsies identified through current testing.
  • Development of a diagnostic algorithm based on patient phenotype, seizure onset, and comorbidities.

Main Results:

  • Genetic testing identifies a significant proportion of epilepsy cases with diverse underlying causes.
  • Phenotypic information, including EEG and MRI, is crucial for selecting appropriate genetic tests.
  • A proposed algorithm aims to optimize diagnostic yield and minimize costs in genetic epilepsy evaluation.

Conclusions:

  • Accurate interpretation of genetic testing results is essential for modern neurological practice.
  • Integrating genetic testing into clinical workflows requires understanding testing options and patient phenotypes.
  • Targeted genetic testing strategies improve patient care and resource utilization in epilepsy management.