Evidence map›Paper›PMID 25149921›Full record

ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2014

Reduced cerebrospinal fluid levels of brain-derived neurotrophic factor is associated with cognitive impairment in late-life major depression.

Breno S Diniz, Antonio L Teixeira, Rodrigo Machado-Vieira, Leda L Talib, Marcia Radanovic, Wagner F Gattaz, Orestes V Forlenza

Abstract read
In one paragraph

Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 4 pooled it
3.5field-weighted citation impact, top 7% 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, 4 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Depressive symptom instability predicts incident mild cognitive impairment and dementia in older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  7. Pharmacotherapy of major depressive disorder in older adults: from an evidence-informed stepwise algorithm to precision medicine.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  8. Sex modifies the relationship between depression and risk for dementia: implications for targeted prevention.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Influence ofAging and disease · 2020
    Review
  18. Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Breno S Dinizbrenosatler@gmail.com.
Antonio L TeixeiraDepartment of Internal Medicine, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Rodrigo Machado-VieiraDepartment and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, Brazil. National Institute of Mental Health (NIMH), National Institutes of Health, Bethesda, Maryland.
Leda L TalibDepartment and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, Brazil.
Marcia RadanovicDepartment and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, Brazil.
Wagner F GattazDepartment and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, Brazil.
Orestes V ForlenzaDepartment and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, Brazil.
Universidade de São Paulo · BRUniversidade Federal de Minas Gerais · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLate-life depression (LLD) is associated with reduced neurotrophic support and abnormalities in neurodegenerative cascades. The aim of the present study is to determine the concentrations of brain-derived neurotrophic factor (BDNF), amyloid-β42, total Tau, and phosphorylated Tau in the cerebrospinal fluid (CSF) of patients with LLD and cognitive impairment compared to healthy older adults.

methodWe included 25 antidepressant-free patients with LLD (10 with mild cognitive impairment [LLD + MCI] and 15 with no cognitive decline [LLD + NCD]) and 25 healthy older adults as a comparison group. Depressive symptoms were assessed by the 21-item Hamilton Depression Rating Scale (HDRS-21) and cognitive performance by a comprehensive cognitive battery.

resultsPatients with LLD + MCI showed significantly lower CSF BDNF levels compared to LLD + NCD and healthy controls (p = .003). There were no significant differences in Alzheimer's disease-related CSF biomarkers between groups. CSF BDNF concentrations were positively correlated with Cambridge Cognitive Test (CAMCOG) scores (r = .36, p = .02). DISCUSSION: The present study adds to the growing body of evidence that abnormalities in the BDNF system are involved in the pathophysiology of LLD. The reduction of the availability of BDNF in the central nervous system may indicate increased vulnerability to the development of several age-related neuropsychiatric disorders as well as to adverse cognitive outcomes.

Indexed as

AgedAge of OnsetAgingAmyloid beta-PeptidesBrain-Derived Neurotrophic FactorCognitive DysfunctionHumansMajor Depressive DisorderMaleMiddle AgedPeptide Fragmentstau ProteinsAmyloid beta-Peptidesamyloid beta-protein (1-42)Brain-Derived Neurotrophic FactorPeptide Fragmentstau ProteinsAlzheimer’s diseaseAmyloid-β42BDNFCerebrospinal fluidCognitionLate-life depression.

Identifiers

PMID25149921
PMCPMC4217554
OpenAlexW2128312863

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.