Evidence map›Paper›PMID 21731499›Full record

ArticlePLoS genetics2011

Increased susceptibility to cortical spreading depression in the mouse model of familial hemiplegic migraine type 2.

Loredana Leo, Lisa Gherardini, Virginia Barone, Maurizio De Fusco, Daniela Pietrobon, Tommaso Pizzorusso, Giorgio Casari

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
8.4field-weighted citation impact, top 2% 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

108 citing papers in PubMed, 219 citations in OpenAlex.

  1. Hemiplegic migraine: genetics and pathophysiology.The Journal of clinical investigation · 2026
    Review
  2. Article
  3. Spreading depolarization: A wave that precedes and drives cerebral ischemic cell death-Target for neuroprotection.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  4. Article
  5. Non-neuronal targets for migraine therapy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  6. Article
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48 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

7 authors at 5 institutions in 1 country.

Loredana LeoVita-Salute San Raffaele University and Center for Translational Genomics and Bioinformatics, San Raffaele Scientific Institute, Milan, Italy.
Lisa Gherardini
Virginia Barone
Maurizio De Fusco
Daniela Pietrobon
Tommaso Pizzorusso
Giorgio Casari
Vita-Salute San Raffaele University · ITItalian Institute of Technology · ITNeuroscience Institute · ITUniversity of Florence · ITUniversity of Padua · IT

Funding

Telethon GGP06234
6 · The paper itself

Abstract

Familial hemiplegic migraine type 2 (FHM2) is an autosomal dominant form of migraine with aura that is caused by mutations of the α2-subunit of the Na,K-ATPase, an isoform almost exclusively expressed in astrocytes in the adult brain. We generated the first FHM2 knock-in mouse model carrying the human W887R mutation in the Atp1a2 orthologous gene. Homozygous Atp1a2(R887/R887) mutants died just after birth, while heterozygous Atp1a2(+/R887) mice showed no apparent clinical phenotype. The mutant α2 Na,K-ATPase protein was barely detectable in the brain of homozygous mutants and strongly reduced in the brain of heterozygous mutants, likely as a consequence of endoplasmic reticulum retention and subsequent proteasomal degradation, as we demonstrate in transfected cells. In vivo analysis of cortical spreading depression (CSD), the phenomenon underlying migraine aura, revealed a decreased induction threshold and an increased velocity of propagation in the heterozygous FHM2 mouse. Since several lines of evidence involve a specific role of the glial α2 Na,K pump in active reuptake of glutamate from the synaptic cleft, we hypothesize that CSD facilitation in the FHM2 mouse model is sustained by inefficient glutamate clearance by astrocytes and consequent increased cortical excitatory neurotransmission. The demonstration that FHM2 and FHM1 mutations share the ability to facilitate induction and propagation of CSD in mouse models further support the role of CSD as a key migraine trigger.

Indexed as

AnimalsAstrocytesCortical Spreading DepressionDisease Models, AnimalEndoplasmic ReticulumFemaleGene Knock-In TechniquesGlutamic AcidHeLa CellsHumansMaleMiceMice, TransgenicMigraine with AuraMutagenesis, InsertionalPhenotypeAtp1a2 protein, mouseGlutamic AcidSodium-Potassium-Exchanging ATPase

Identifiers

PMID21731499
PMCPMC3121757
OpenAlexW2055448024

What OpenQuestion holds

Textmetadata
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.