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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.
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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.
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Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
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Related Experiment Video

Updated: Dec 23, 2025

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
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Biomarkers for posttraumatic epilepsy.

Asla Pitkänen1, Tomi Paananen1, Jenni Kyyriäinen1

  • 1A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, PO Box 1627, FIN-70211 Kuopio, Finland.

Epilepsy & Behavior : E&B
|April 23, 2020
PubMed
Summary
This summary is machine-generated.

Researchers investigated biomarkers for traumatic brain injury (TBI), epilepsy, and posttraumatic epilepsy (PTE), finding little overlap between them. Further research is needed to discover reliable biomarkers for PTE.

Keywords:
EpileptogenesisExosomeMachine learningMagnetic resonance imagingmicroRNAtraumatic brain injury

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Area of Science:

  • Biomedical research
  • Neuroscience
  • Biomarker discovery

Background:

  • Biomarkers are measurable indicators of biological processes or responses.
  • The FDA-NIH BEST Resource categorizes biomarkers into seven types.
  • Understanding biomarker overlap in neurological conditions is crucial.

Purpose of the Study:

  • To test the hypothesis of biomarker overlap between traumatic brain injury (TBI), epilepsy, and posttraumatic epilepsy (PTE).
  • To review existing literature on biomarkers for posttraumatic epileptogenesis and epilepsy.

Main Methods:

  • Systematic review of studies on molecular, imaging, and electrophysiologic biomarkers.
  • Analysis of biomarker candidates reported for TBI, epilepsy, and PTE.
  • Evaluation of biomarker performance using receiver operating characteristic curves.

Main Results:

  • Most reviewed biomarkers demonstrated high sensitivity and specificity (AUC > 0.800).
  • Little overlap was found in biomarker candidates across TBI, epilepsy, and PTE.
  • Machine learning shows promise for identifying patterns of biomarkers.

Conclusions:

  • Current evidence suggests limited biomarker overlap between TBI, epilepsy, and PTE.
  • Biomarker discovery for PTE is in its early stages, with many BEST categories lacking PTE-specific biomarkers.
  • Further standardized research with validation cohorts and novel analytical methods is essential for PTE biomarker development.