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Related Experiment Video

Updated: Jan 19, 2026

Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury
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Post-traumatic headache: epidemiology and pathophysiological insights.

Håkan Ashina1, Frank Porreca2,3, Trent Anderson4

  • 1Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

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Post-traumatic headache (PTH) is a common, disabling consequence of concussion. Research reveals mechanisms like neuroinflammation and impaired modulation, highlighting targets for new treatments.

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Area of Science:

  • Neurology
  • Neuroscience
  • Headache Medicine

Background:

  • Post-traumatic headache (PTH) is a frequent and disabling secondary headache disorder following mild traumatic brain injury (concussion).
  • Significant overlap exists between PTH and primary headache disorders like migraine and tension-type headache.
  • Current understanding of PTH pathophysiology remains incomplete, necessitating further investigation.

Purpose of the Study:

  • To review current evidence on the pathophysiological mechanisms underlying PTH.
  • To explore similarities and differences between primary headaches and PTH to identify unique therapeutic targets.
  • To outline future research directions for biomarker discovery and drug development for persistent PTH.

Main Methods:

  • Review of animal and human studies investigating PTH mechanisms.
  • Analysis of evidence related to descending modulation, neurometabolic changes, neuroinflammation, and trigeminal system activation.
  • Identification of potential biomarkers and drug targets based on current research.

Main Results:

  • Evidence suggests impaired descending modulation, neurometabolic changes, neuroinflammation, and trigeminal sensory system activation contribute to PTH development and persistence.
  • Common PTH phenotypes include migraine-like and tension-type-like headaches.
  • Understanding pathophysiological overlaps may reveal novel treatment strategies.

Conclusions:

  • Further research is crucial to elucidate the mechanisms of PTH and its progression from acute to persistent forms.
  • Identifying biomarkers for PTH progression is a key future direction.
  • Potential drug targets exist for preventing and treating persistent PTH, addressing a significant unmet clinical need.