Evidence map›Paper›PMID 21865469›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011

Hippocampal telomerase is involved in the modulation of depressive behaviors.

Qi-Gang Zhou, Yao Hu, Dan-Lian Wu, Li-Juan Zhu, Chen Chen, Xing Jin, Chun-Xia Luo, Hai-Yin Wu, Jing Zhang, Dong-Ya Zhu

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 105 citations in OpenAlex.

  1. Meta-analysis of Telomere Length in Alzheimer's Disease.The journals of gerontology. Series A, Biological sciences and medical sciences · 2016
    Pooled it
  2. PBMC telomerase activity in depression and the response to electroconvulsive therapy.European archives of psychiatry and clinical neuroscience · 2021
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  20. Behavioral and accumbens synaptic plasticity induced by cues associated with restraint stress.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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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

10 authors at 1 institution in 1 country.

Qi-Gang ZhouDepartment of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing 210029, China.
Yao Hu
Dan-Lian Wu
Li-Juan Zhu
Chen Chen
Xing Jin
Chun-Xia Luo
Hai-Yin Wu
Jing Zhang
Dong-Ya Zhu
Nanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Telomere and telomerase alterations have been reported in mood disorders. However, the role of telomerase in depression remains unclear. Here we show that chronic mild stress (CMS) led to a significant decrease in telomerase reverse transcriptase (TERT) level and telomerase activity in the hippocampus. Treatment with antidepressant fluoxetine reversed the CMS-induced TERT and telomerase activity changes. Inhibiting telomerase by systemic administration (100 mg · kg(-1) · d(-1), i.p., for 14 d), intrahippocampal microinjection (0.7 μmol, 2 μl), or infusion (using an osmotic minipump, 0.134 μg/μl, 0.25 μl/h) of 3'-azido-deoxythymidine (AZT) resulted in depression-like behaviors and impaired hippocampal neurogenesis in mice. In contrast, overexpressing telomerase by intrahippocampal infusion of recombinant adenovirus vector expressing mouse TERT (Ad-mTERT-GFP) led to neurogenesis upregulation, produced antidepressant-like behaviors, and prevented the CMS-induced behavioral modifications. Disrupting neurogenesis in the dentate gyrus by X-irradiation (15 Gy) of a restricted region of mouse brain containing the hippocampus abolished the antidepressant-like effect of Ad-mTERT-GFP. Additionally, AZT had no effect on DNA polymerase activity and did not cause cell damage in vitro and in vivo. Microinjection of AZT into the subventricular zone of lateral ventricle (0.7 μmol, 2 μl) inhibited local neurogenesis but had no behavioral effect. These results suggest that hippocampal telomerase is involved in the modulation of depression-related behaviors, possibly by regulating adult neurogenesis.

Indexed as

AgingAnimalsBehavior, AnimalCells, CulturedDepressive DisorderDisease Models, AnimalFemaleHippocampusMiceMice, Inbred C57BLNeurogenesisStress, PsychologicalTelomeraseTelomerase

Identifiers

PMID21865469
PMCPMC6623221
OpenAlexW1967985498

What OpenQuestion holds

Textmetadata
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.