Evidence map›Paper›PMID 27354390›Full record

ArticleEMBO molecular medicine2016

Defective glutamate and K+ clearance by cortical astrocytes in familial hemiplegic migraine type 2.

Clizia Capuani, Marcello Melone, Angelita Tottene, Luca Bragina, Giovanna Crivellaro, Mirko Santello, Giorgio Casari, Fiorenzo Conti, Daniela Pietrobon

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 1% 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 140 citations in OpenAlex.

  1. Pooled it
  2. Hemiplegic migraine: genetics and pathophysiology.The Journal of clinical investigation · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Non-neuronal targets for migraine therapy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. The journal of headache and pain · 2024
    Article
  19. Article
  20. Review

24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Clizia CapuaniDepartment of Biomedical Sciences, University of Padova, Padova, Italy.
Marcello MeloneDepartment of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy Center for Neurobiology of Aging, INRCA IRCCS, Ancona, Italy.
Angelita TotteneDepartment of Biomedical Sciences, University of Padova, Padova, Italy.
Luca BraginaDepartment of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy Center for Neurobiology of Aging, INRCA IRCCS, Ancona, Italy.
Giovanna CrivellaroDepartment of Biomedical Sciences, University of Padova, Padova, Italy.
Mirko SantelloInstitute of Pharmacology and Toxicology, University of Zurich, Zürich, Switzerland.ORCID 0000-0002-7709-4127
Giorgio CasariVita-Salute San Raffaele University and San Raffaele Scientific Institute, Milano, Italy.
Fiorenzo ContiDepartment of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy Center for Neurobiology of Aging, INRCA IRCCS, Ancona, Italy Fondazione di Medicina Molecolare, Università Politecnica delle Marche, Ancona, Italy.
Daniela PietrobonDepartment of Biomedical Sciences, University of Padova, Padova, Italy CNR Institute of Neuroscience, Padova, Italy daniela.pietrobon@unipd.it.ORCID 0000-0002-5148-8670
University of Padua · ITMarche Polytechnic University · ITUniversity of Zurich · CHVita-Salute San Raffaele University · IT

Funding

Telethon GGP12008Telethon GGP14234
6 · The paper itself

Abstract

Migraine is a common disabling brain disorder. A subtype of migraine with aura (familial hemiplegic migraine type 2: FHM2) is caused by loss-of-function mutations in α2 Na(+),K(+) ATPase (α2 NKA), an isoform almost exclusively expressed in astrocytes in adult brain. Cortical spreading depression (CSD), the phenomenon that underlies migraine aura and activates migraine headache mechanisms, is facilitated in heterozygous FHM2-knockin mice with reduced expression of α2 NKA The mechanisms underlying an increased susceptibility to CSD in FHM2 are unknown. Here, we show reduced rates of glutamate and K(+) clearance by cortical astrocytes during neuronal activity and reduced density of GLT-1a glutamate transporters in cortical perisynaptic astrocytic processes in heterozygous FHM2-knockin mice, demonstrating key physiological roles of α2 NKA and supporting tight coupling with GLT-1a. Using ceftriaxone treatment of FHM2 mutants and partial inhibition of glutamate transporters in wild-type mice, we obtain evidence that defective glutamate clearance can account for most of the facilitation of CSD initiation in FHM2-knockin mice, pointing to excessive glutamatergic transmission as a key mechanism underlying the vulnerability to CSD ignition in migraine.

Indexed as

AnimalsAstrocytesCerebral CortexDisease Models, AnimalGene Knock-In TechniquesGlutamic AcidMiceMigraine with AuraPotassiumGlutamic AcidPotassiumceftriaxoneglutamate transportermigraineNa+,K+ ATPasespreading depression

Identifiers

PMID27354390
PMCPMC4967947
OpenAlexW2464831028

What OpenQuestion holds

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LicenceCC BY
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.