Evidence map›Paper›PMID 18656463›Full record

ArticleBrain research2008

Mechanically-induced cortical spreading depression associated regional cerebral blood flow changes are blocked by Na+ ion channel blockade.

Simon Akerman, Philip R Holland, Peter J Goadsby

Abstract read
PubMed Publisher
In one paragraph

Article in Brain research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Systematic review of the pharmacological agents that have been tested against spreading depolarizations.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Pooled it
  2. Olfactory Bulb Pinprick Induction of Cortical Spreading Depolarizations.bioRxiv : the preprint server for biology · 2025
    Article
  3. Brain-wide continuous functional ultrasound imaging for real-time monitoring of hemodynamics during ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  4. Review
  5. Article
  6. Action Potentials Are Critical for the Propagation of Focally Elicited Spreading Depolarizations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  7. Spreading depression as a preclinical model of migraine.The journal of headache and pain · 2019
    Review
  8. Current Status of Antiepileptic Drugs as Preventive Migraine Therapy.Current treatment options in neurology · 2019
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Critical role of calcitonin gene-related peptide receptors in cortical spreading depression.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  15. Cortical spreading depression-new insights and persistent questions.Cephalalgia : an international journal of headache · 2009
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Simon AkermanDepartment of Neurology, University of California, San Francisco, 505 Parnassus Avenue, San Francisco CA 94143-0114, USA.
Philip R Holland
Peter J Goadsby
University of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Migraine with aura occurs in up to 20-30% of all migraineurs. The regional cerebral blood flow (rCBF) changes that occur during cortical spreading depression (CSD) are considered to be an experimental correlate of aura. CSD is synchronous with a failure in brain ion homeostasis and efflux of excitatory amino acids from nerve cells. Therefore studying the mechanisms that underlie CSD, such as ion channel manipulation, and observing rCBF changes may help our understanding of migraine aura. In this study we used mechanical stimulation to induce oligemia and hyperemia, in surgically prepared cats and rats, using laser Doppler probes to measure the cerebral blood flow and single cell cortical recording to measure the spike/neuronal burst, both generated as a consequence of CSD. We looked at the response of ion channel blockers directed at sodium, voltage-dependent calcium and ATP-activated potassium ion channels. The sodium ion channel blocker was able to inhibit rCBF changes in both the cat and rats. Voltage-dependent calcium channel blockers had little effect on the initiation or propagation of the spread, as did the ATP-activated potassium channel blocker. The data are consistent with what is known of human aura in that sodium ion channels are those predominantly involved in mechanical stimulation-induced rCBF changes and thus may represent therapeutic targets for the aura response in migraine.

Indexed as

Action PotentialsAnalysis of VarianceAnimalsCalcium Channel BlockersCatsCerebral CortexCortical Spreading DepressionFemaleHyperemiaLaser-Doppler FlowmetryMalePhysical StimulationRatsRats, Sprague-DawleyRegional Blood FlowSodium Channel BlockersCalcium Channel BlockersSodium Channel BlockersTetrodotoxin

Identifiers

PMID18656463
OpenAlexW2048850380

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.