Evidence map›Paper›PMID 28253930›Full record

ArticleMolecular brain2017

Rapid and stable changes in maturation-related phenotypes of the adult hippocampal neurons by electroconvulsive treatment.

Yuki Imoto, Eri Segi-Nishida, Hidenori Suzuki, Katsunori Kobayashi

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  5. Hyper-maturity and accelerated aging in the hippocampus of mouse models of neuropsychiatric disorders with anxiety-like behavior.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  14. Noradrenaline activation of hippocampal dopamine DProceedings of the National Academy of Sciences of the United States of America · 2022
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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

4 authors at 3 institutions in 1 country.

Yuki ImotoDepartment of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.
Eri Segi-NishidaCenter for Integrative Education in Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan. eri.segi.nishida@rs.tus.ac.jp.
Hidenori SuzukiDepartment of Pharmacology, Graduate School of Medicine, Nippon Medical School, Sendagi, Bunkyō, Tokyo, Japan.
Katsunori KobayashiDepartment of Pharmacology, Graduate School of Medicine, Nippon Medical School, Sendagi, Bunkyō, Tokyo, Japan. kkatsu-tky@umin.ac.jp.ORCID 0000-0001-8537-8448
Japan Science and Technology Agency · JPKyoto University · JPTokyo University of Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electroconvulsive therapy (ECT) is a highly effective and fast-acting treatment for depression. Despite a long history of clinical use, its mechanism of action remains poorly understood. Recently, a novel cellular mechanism of antidepressant action has been proposed: the phenotype of mature brain neurons is transformed to immature-like one by antidepressant drug treatments. We show here that electroconvulsive stimulation (ECS), an animal model of ECT, causes profound changes in maturation-related phenotypes of neurons in the hippocampal dentate gyrus of adult mice. Single ECS immediately reduced expression of mature neuronal markers in almost entire population of dentate granule cells. After ECS treatments, granule cells showed some of physiological properties characteristic of immature granule cells such as higher somatic intrinsic excitability and smaller frequency facilitation at the detate-to-CA3 synapse. The rapid downregulation of maturation markers was suppressed by antagonizing glutamate NMDA receptors, but not by perturbing the serotonergic system. While single ECS caused short-lasting effects, repeated ECS induced stable changes in the maturation-related phenotypes lasting more than 2 weeks along with enhancement of synaptic excitation of granule cells. Augmentation of synaptic inhibition or blockade of NMDA receptors after repeated ECS facilitated regaining the initial mature phenotype, suggesting a role for endogenous neuronal excitation in maintaining the altered maturation-related phenotype probably via NMDA receptor activation. These results suggest that brief neuronal activation by ECS induces "dematuration" of the mature granule cells and that enhanced endogenous excitability is likely to support maintenance of such a demature state. The global increase in neuronal excitability accompanying this process may be relevant to the high efficacy of ECT.

Indexed as

Cell DifferentiationElectroshockAgingAnimalsBiomarkersDentate GyrusDown-Regulationgamma-Aminobutyric AcidGene Expression RegulationGene OntologyHippocampusMaleMice, Inbred C57BLModels, BiologicalNeuronsPhenotypeBiomarkersgamma-Aminobutyric AcidReceptors, N-Methyl-D-AspartateSelective Serotonin Reuptake InhibitorsAntidepressantElectroconvulsive seizureGranule cellHippocampusMaturation

Identifiers

PMID28253930
PMCPMC5335812
OpenAlexW2592668304

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.