Evidence map›Paper›PMID 31959360›Full record

ReviewTrends in neurosciences2020

Ion Channel Functions in Early Brain Development.

Richard S Smith, Christopher A Walsh

Open access · greenAbstract readReview
In one paragraph

Review in Trends in neurosciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 2 pooled it
7.8field-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

66 citing papers in PubMed, 2 syntheses or guidelines pooled it, 122 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Clinical and Genetic Spectrum ofNeurology. Genetics · 2026
    Article
  5. Article
  6. Article
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  8. CRISPR/Cas9-mediatedFrontiers in physiology · 2026
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Protein-Altering Variants' Analysis in Autism Subgroups Uncovers Early Brain-Expressed Gene Modules Relevant to Autism Pathophysiology.Autism research : official journal of the International Society for Autism Research · 2025
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

6 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

2 authors at 1 institution in 1 country.

Richard S SmithDivision of Genetics and Genomics, Manton Center for Orphan Disease Research, and Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA. Electronic address: Richard.Smith@childrens.harvard.edu.
Christopher A WalshDivision of Genetics and Genomics, Manton Center for Orphan Disease Research, and Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA. Electronic address: Christopher.walsh@childrens.harvard.edu.
Howard Hughes Medical Institute · US

Funding

Cell Identity Determination In Human Brain: Somatic Mutation and Cell LineageR01NS032457 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI Alice Eunjung Lee, Christopher A. Walsh · 1995 to 2026
$12.7M
HUMAN EPILEPSY GENETICS--NEURONAL MIGRATION DISORDERSR01NS035129 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI WALSH, CHRISTOPHER A. · 1997 to 2023
$9.5M
1/2-Somatic mosaicism and autism spectrum disorderU01MH106883 · NIMH · BOSTON CHILDREN'S HOSPITAL · PI PARK, PETER J, WALSH, CHRISTOPHER A. · 2015 to 2019
$9.2M
Role for ion conducting proteins in cortical malformation diseasesK99NS112604 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI SMITH, RICHARD S · 2019 to 2021
$276k
Cerebral Cortex Malformations - Genetics and Physiological ValidationF32NS100338 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI SMITH, RICHARD S · 2017 to 2019
$161k
NIMH NIH HHS U01 MH106883NINDS NIH HHS F32 NS100338NINDS NIH HHS K99 NS112604NINDS NIH HHS R01 NS032457NINDS NIH HHS R01 NS035129
6 · The paper itself

Abstract

During prenatal brain development, ion channels are ubiquitous across several cell types, including progenitor cells and migrating neurons but their function has not been clear. In the past, ion channel dysfunction has been primarily studied in the context of postnatal, differentiated neurons that fire action potentials - notably ion channels mutated in the epilepsies - yet data now support a surprising role in prenatal human brain disorders as well. Modern gene discovery approaches have identified defective ion channels in individuals with cerebral cortex malformations, which reflect abnormalities in early-to-middle stages of embryonic development (prior to ubiquitous action potentials). These human genetics studies and recent in utero animal modeling work suggest that precise control of ionic flux (calcium, sodium, and potassium) contributes to in utero developmental processes such as neural proliferation, migration, and differentiation.

Indexed as

EpilepsyIon ChannelsAction PotentialsAnimalsBrainFemaleHumansNeuronsPregnancyIon Channelsbioelectricitybrain malformationchannelopathycortical developmentencephalopathyion channel

Identifiers

PMID31959360
PMCPMC7092371
OpenAlexW2999061076

What OpenQuestion holds

Textmetadata
LicenceTDM
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.