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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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Epigenetic Regulation01:37

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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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Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

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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.
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Antiepileptic Drugs: Potassium Channel Activators01:20

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Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
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Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
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Antiepileptic Drugs: Glutamate Antagonists01:14

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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...
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Related Experiment Video

Updated: Sep 6, 2025

Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 Kir4.1
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Genome-wide decrease in DNA methylation in adults with epilepsy treated with modified ketogenic diet: A prospective

Sigrid Pedersen1, Magnhild Kverneland1, Karl Otto Nakken1

  • 1National Center for Epilepsy, Oslo University Hospital, Oslo, Norway.

Epilepsia
|June 28, 2022
PubMed
Summary
This summary is machine-generated.

The modified ketogenic diet reduced DNA methylation in adults with epilepsy. This dietary intervention may offer new therapeutic targets for epilepsy by influencing genes related to lipid metabolism and seizure control.

Keywords:
Infinium MethylationEPIC BeadChipepigeneticshigh-fatlow-carbohydrate diet

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Area of Science:

  • Epigenetics
  • Nutritional Neuroscience
  • Metabolic Disorders

Background:

  • Epilepsy is a chronic neurological disorder affecting millions worldwide.
  • The modified ketogenic diet (MKD) is an established therapy for drug-resistant epilepsy.
  • The molecular mechanisms underlying the anti-seizure effects of the MKD are not fully understood.

Purpose of the Study:

  • To investigate the impact of the modified ketogenic diet on genome-wide DNA methylation in adults with epilepsy.
  • To identify specific genes and pathways affected by the MKD at the epigenetic level.
  • To explore potential molecular mechanisms linking MKD to seizure amelioration.

Main Methods:

  • Prospective study of 58 adults with epilepsy on MKD for 12 weeks.
  • Genome-wide DNA methylation analysis using Illumina MethylationEPIC BeadChip array.
  • Statistical analysis including ANOVA, paired t-test, and FDR correction for differential methylation analysis.

Main Results:

  • Observed a genome-wide decrease in DNA methylation after 4 and 12 weeks of MKD.
  • Differentially methylated CpGs were annotated to genes involved in epilepsy, lipid metabolism, and transcriptional regulation.
  • Five identified genes were related to inositol phosphate metabolism, suggesting a potential mechanism of action.

Conclusions:

  • The MKD induces significant changes in DNA methylation patterns in adults with epilepsy.
  • Epigenetic modifications, particularly in lipid and inositol phosphate metabolism pathways, may mediate the anti-seizure effects of the MKD.
  • Understanding these molecular changes could lead to novel therapeutic strategies for epilepsy.