Evidence map›Paper›PMID 27677466›Full record

ArticleScientific reports2016

Gain-of-function defects of astrocytic Kir4.1 channels in children with autism spectrum disorders and epilepsy.

Federico Sicca, Elena Ambrosini, Maria Marchese, Luigi Sforna, Ilenio Servettini, Giulia Valvo, Maria Stefania Brignone, Angela Lanciotti, Francesca Moro, Alessandro Grottesi and 8 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
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  7. Article
  8. Beyond the synapse: Bassoon mutations drive epilepsy through Astrocyte-Neuron crosstalk.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  9. Review
  10. Article
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  18. Trehalose Treatment in Zebrafish Model of Lafora Disease.International journal of molecular sciences · 2022
    Article
  19. EnhancingGenes · 2022
    Article
  20. Review
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

18 authors at 5 institutions in 2 countries.

Federico SiccaClinical Neurophysiology Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Elena AmbrosiniDepartment of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161-Rome, Italy.
Maria MarcheseMolecular Medicine Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Luigi SfornaSchool of Medicine, Section of Physiology &Biochemistry, Department of Experimental Medicine, Piazzale Gambuli, University of Perugia, 06132-Perugia, Italy.
Ilenio ServettiniSchool of Medicine, Section of Physiology &Biochemistry, Department of Experimental Medicine, Piazzale Gambuli, University of Perugia, 06132-Perugia, Italy.
Giulia ValvoClinical Neurophysiology Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Maria Stefania BrignoneDepartment of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161-Rome, Italy.
Angela LanciottiDepartment of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161-Rome, Italy.
Francesca MoroMolecular Medicine Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Alessandro GrottesiSuperComputing Applications and Innovation-CINECA, Via dei Tizii, 6, 00185-Roma, Italy.
Luigi CatacuzzenoDepartment of Chemistry, Biology and Biotechnology, University of Perugia, Piazzale Gambuli, 06132-Perugia, Italy.
Sara BaldiniClinical Neurophysiology Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Sonia HasanSchool of Medicine, Section of Physiology &Biochemistry, Department of Experimental Medicine, Piazzale Gambuli, University of Perugia, 06132-Perugia, Italy.
Maria Cristina D'AdamoSchool of Medicine, Section of Physiology &Biochemistry, Department of Experimental Medicine, Piazzale Gambuli, University of Perugia, 06132-Perugia, Italy.
Fabio FrancioliniDepartment of Chemistry, Biology and Biotechnology, University of Perugia, Piazzale Gambuli, 06132-Perugia, Italy.
Paola MolinariDepartment of Pharmacology, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161-Rome, Italy.
Filippo M SantorelliMolecular Medicine Laboratory, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Via dei Giacinti 2, 56128-Pisa, Italy.
Mauro PessiaSchool of Medicine, Section of Physiology &Biochemistry, Department of Experimental Medicine, Piazzale Gambuli, University of Perugia, 06132-Perugia, Italy.
University of Perugia · ITFondazione Stella Maris · ITIstituto Superiore di Sanità · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITUniversity of Malta · MT

Funding

Telethon GGP11188
6 · The paper itself

Abstract

Dysfunction of the inwardly-rectifying potassium channels Kir4.1 (KCNJ10) represents a pathogenic mechanism contributing to Autism-Epilepsy comorbidity. To define the role of Kir4.1 variants in the disorder, we sequenced KCNJ10 in a sample of affected individuals, and performed genotype-phenotype correlations. The effects of mutations on channel activity, protein trafficking, and astrocyte function were investigated in Xenopus laevis oocytes, and in human astrocytoma cell lines. An in vivo model of the disorder was also explored through generation of kcnj10a morphant zebrafish overexpressing the mutated human KCNJ10. We detected germline heterozygous KCNJ10 variants in 19/175 affected children. Epileptic spasms with dysregulated sensory processing represented the main disease phenotype. When investigated on astrocyte-like cells, the p.R18Q mutation exerted a gain-of-function effect by enhancing Kir4.1 membrane expression and current density. Similarly, the p.R348H variant led to gain of channel function through hindrance of pH-dependent current inhibition. The frequent polymorphism p.R271C seemed, instead, to have no obvious functional effects. Our results confirm that variants in KCNJ10 deserve attention in autism-epilepsy, and provide insight into the molecular mechanisms of autism and seizures. Similar to neurons, astrocyte dysfunction may result in abnormal synaptic transmission and electrical discharge, and should be regarded as a possible pharmacological target in autism-epilepsy.

Identifiers

PMID27677466
PMCPMC5039625
OpenAlexW2527523087

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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.