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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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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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Epilepsy ll: Types01:22

Epilepsy ll: Types

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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.
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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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Epigenetic Regulation01:37

Epigenetic Regulation

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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
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Epigenetic Regulation01:46

Epigenetic Regulation

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Epigenetic Regulation01:46

Epigenetic Regulation

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Related Experiment Video

Updated: Apr 27, 2026

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
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Sex, epilepsy, and epigenetics.

Irfan A Qureshi1, Mark F Mehler2

  • 1Roslyn and Leslie Goldstein Laboratory for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Institute for Brain Disorders and Neural Regeneration, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Department of Neurology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Rose F. Kennedy Center for Research on Intellectual and Developmental Disabilities, Albert Einstein College of Medicine, Bronx, NY 10461, USA.

Neurobiology of Disease
|July 8, 2014
PubMed
Summary
This summary is machine-generated.

Sex significantly impacts epilepsy, influencing its mechanisms and treatment. Epigenetic regulation offers new insights into understanding these sex differences in epilepsy.

Keywords:
ChromatinDNA methylationEpigeneticEpilepsyHistoneNon-coding RNA

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Genetics

Background:

  • Epilepsy is a complex neurological disorder with diverse presentations.
  • Significant sex-based variations exist in epilepsy pathogenesis, seizure types, comorbidities, and treatment responses.
  • Sex hormones and sex chromosomes are known fundamental contributors to these sex differences.

Purpose of the Study:

  • To explore the role of epigenetic mechanisms in mediating sex differences in epilepsy.
  • To highlight the potential of epigenetic analysis for novel insights into epilepsy's sexual dimorphism.

Main Methods:

  • Review of existing literature on sex differences in epilepsy.
  • Analysis of evidence linking epigenetic regulation to both epilepsy and brain sexual dimorphism.

Main Results:

  • Sex hormones and chromosomes are established factors influencing epilepsy.
  • Epigenetic mechanisms are increasingly implicated in both epilepsy and sexual brain development.
  • Current understanding of molecular, cellular, and network processes underlying sex differences in epilepsy is limited.

Conclusions:

  • Epigenetic regulation is a promising area for investigating the basis of sex differences in epilepsy.
  • Analyzing epigenetic mechanisms can provide novel insights into the heterogeneity of epilepsy based on sex.