Evidence map›Paper›PMID 27837334›Full record

ArticlePsychopharmacology2017

Mechanism of depression as a risk factor in the development of Alzheimer's disease: the function of AQP4 and the glymphatic system.

Maosheng Xia, Li Yang, Guangfeng Sun, Shuang Qi, Baoman Li

Abstract read
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In one paragraph

Article in Psychopharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

90 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Adenosine AJournal of neurochemistry · 2026
    Article
  9. Cerebellar astrocytic alterations in depression.Translational psychiatry · 2026
    Article
  10. Article
  11. Review
  12. Astrocytic KFrontiers in aging neuroscience · 2026
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
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  20. Article

30 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

5 authors at 2 institutions in 1 country.

Maosheng XiaLaboratory of Brain Metabolic Diseases, Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, No. 77, Puhe Street, Shenbei District, Shenyang, 110177, People's Republic of China.
Li YangLaboratory of Brain Metabolic Diseases, Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, No. 77, Puhe Street, Shenbei District, Shenyang, 110177, People's Republic of China.
Guangfeng SunLaboratory of Brain Metabolic Diseases, Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, No. 77, Puhe Street, Shenbei District, Shenyang, 110177, People's Republic of China.
Shuang QiLaboratory of Brain Metabolic Diseases, Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, No. 77, Puhe Street, Shenbei District, Shenyang, 110177, People's Republic of China.
Baoman LiLaboratory of Brain Metabolic Diseases, Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, No. 77, Puhe Street, Shenbei District, Shenyang, 110177, People's Republic of China. baomanli1226@yahoo.com.
First Hospital of China Medical University · CNChina Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany studies have indicated that a history of depression increases the risk of developing Alzheimer's disease (AD); however, the potential pathogenestic mechanism by which depression functions as a high risk factor for AD remains unknown. Recently, a "cerebral lymphatic system" referred to as "glymphatic system" has been demonstrated to be responsible for neuronal extracellular waste protein clearance via a paravascular pathway. However, the function of glymphatic pathway has not been determined in depressive disorders.

methodsThe present study used an animal model of chronic unpredictable mild stress (CUMS) to determine the function of glymphatic pathway by using fluorescence tracers. Immunohistochemistry was used to assess the accumulation of endogenous mouse and exogenous human amyloid beta 42 (Aβ42) in CUMS-treated mice with or without treatment with antidepressant fluoxetine.

findingsGlymphatic pathway circulation was impaired in mice treated with CUMS; moreover, glymphatic pathway dysfunction suppressed Aβ42 metabolism, because the accumulation of endogenous and exogenous Aβ42 was increased in the brains of the CUMS-treated mice. However, treatment with fluoxetine reversed these destructive effects of CUMS on glymphatic system. In anhedonic mice, the expression of the water channel aquaporin 4 (AQP4), a factor in glymphatic pathway dysfunction, was down-regulated in cortex and hippocampus.

conclusionThe dysfunction of glymphatic system suggested why a history of depression may be a strong risk factor for AD in anhedonic mice. We hope our study will contribute to an understanding of the risk mechanism of depressive disorder in the development of AD and the mechanisms of antidepressant therapies in AD.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnhedoniaAnimalsAntidepressive AgentsAquaporin 4BrainDepressive DisorderDisease Models, AnimalFluoxetineHippocampusHumansImmunohistochemistryLymphatic SystemMaleMiceAmyloid beta-Peptidesamyloid beta-protein (1-42)Antidepressive AgentsAqp4 protein, mouseAquaporin 4FluoxetinePeptide FragmentsAlzheimer’s diseaseAmyloid beta 42Chronic unpredictable mild stressDepressionGlymphatic pathway

Identifiers

PMID27837334
OpenAlexW2550905642

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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.