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Updated: Jun 11, 2026

Combining Imaging and Electrophysiology to Visualize and Record Spreading Depolarizations in Mice
Published on: October 4, 2024
Gabapentin suppresses cortical spreading depression susceptibility.
Ulrike Hoffmann1, Ergin Dileköz, Chiho Kudo
1Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA.
Gabapentin elevates the electrical threshold for cortical spreading depression (CSD) and reduces its recurrence in rats. This suggests gabapentin may help suppress brain injury depolarizations in conditions like stroke and TBI.
Area of Science:
- Neuroscience
- Pharmacology
Background:
- Cortical spreading depression (CSD) is a key factor in brain injury and migraine aura.
- Calcium channel Cav2.1 plays a critical role in CSD susceptibility.
Purpose of the Study:
- To investigate the effect of gabapentin on CSD susceptibility in an animal model.
- To determine if gabapentin's inhibition of Cav2.1 affects CSD.
Main Methods:
- Anesthetized rats were administered gabapentin (100 or 200 mg/kg) one hour prior to testing.
- CSD was induced and its electrical threshold measured.
- Recurrent CSDs were evoked using topical KCl.
Main Results:
- Gabapentin significantly increased the electrical threshold required to induce CSD.
- The drug reduced the occurrence of recurrent CSDs evoked by KCl.
- These effects were observed at both tested dosages.
Conclusions:
- Gabapentin effectively suppresses CSD susceptibility in rats.
- Gabapentin's mechanism involves inhibition of Cav2.1 channels.
- Gabapentin shows potential for managing brain injury-related depolarizations in stroke, ICH, and TBI.
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