Evidence map›Paper›PMID 21069514›Full record

ArticlePsychopharmacology2011

Fluoxetine attenuates the inhibitory effect of glucocorticoid hormones on neurogenesis in vitro via a two-pore domain potassium channel, TREK-1.

Guangjun Xi, Xiangrong Zhang, Ling Zhang, Yuxiu Sui, Jiaojie Hui, Shanshan Liu, Yingxin Wang, Lingjiang Li, Zhijun Zhang

Abstract read
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In one paragraph

Article in Psychopharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 24% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Tick-Derived Peptide Blocks Potassium Channel TREK-1.International journal of molecular sciences · 2024
    Article
  4. Neurobiology of stress · 2023
    Review
  5. Article
  6. Frontiers in cell and developmental biology · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. The role of K₂p channels in anaesthesia and sleep.Pflugers Archiv : European journal of physiology · 2015
    Review
  17. Review
  18. Article
  19. Review
  20. Article
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 3 institutions in 1 country.

Guangjun XiThe Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China.
Xiangrong Zhang
Ling Zhang
Yuxiu Sui
Jiaojie Hui
Shanshan Liu
Yingxin Wang
Lingjiang Li
Zhijun Zhang
Zhongda Hospital Southeast University · CNSoutheast University · CNSecond Xiangya Hospital of Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleSustained stress and elevated glucocorticoid reduces neurogenesis, whereas chronic treatment with antidepressants increases neurogenesis and blocks the effects of stress. Recently, TREK-1, a two-pore domain (K(2)p) potassium channel, has been shown to be involved in the mechanisms of major depression.

objectivesThis study aimed to investigate whether TREK-1 is involved in the alteration of neurogenesis according to glucocorticoids and antidepressants.

resultsThe present study addressed the expression of TREK-1 in neural stem cells (NSCs) and found TREK-1 was only associated with NSC proliferation. Bupivacaine and curcumin, two strong TREK-1 channel inhibitors, significantly increased embryonic NSC viability and proliferation while transfection of hTREK-1 decreased cell proliferation in embryonic NSCs. Dexamethasone, a glucocorticoid hormone receptor agonist, upregulated both protein and mRNA levels of TREK-1 leading to decreased NSC proliferation which could be reversed by bupivacaine. Fluoxetine, a serotonin reuptake inhibitor antidepressant that has been previously found to inhibit TREK-1 channels, robustly, could attenuate the upregulation of TREK-1 expression and the inhibition of NSC proliferation induced by dexamethasone.

conclusionsTaken together, these data suggest that TREK-1 is associated with NSC proliferation and probably is a modulator of the effect that fluoxetine attenuates the inhibitory neurogenesis induced by glucocorticoid hormones.

Indexed as

Analysis of VarianceAnimalsBromodeoxyuridineCell DeathCell DifferentiationCell ProliferationDrug InteractionsEmbryo, MammalianFluoxetineGene Expression RegulationGlucocorticoidsHippocampusHumansIn Situ Nick-End LabelingIntermediate Filament ProteinsNerve Tissue ProteinsBromodeoxyuridineFluoxetineGlucocorticoidsIntermediate Filament ProteinsNerve Tissue ProteinsNES protein, humanNes protein, ratNestinpotassium channel protein TREK-1Potassium Channels, Tandem Pore DomainSelective Serotonin Reuptake Inhibitors

Identifiers

PMID21069514
OpenAlexW2089983241

What OpenQuestion holds

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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.