Evidence map›Paper›PMID 27676333›Full record

ArticleNeurobiology of aging2016

Tau downregulates BDNF expression in animal and cellular models of Alzheimer's disease.

Elyse Rosa, Sujeivan Mahendram, Yazi D Ke, Lars M Ittner, Stephen D Ginsberg, Margaret Fahnestock

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

55 citing papers in PubMed, 95 citations in OpenAlex.

  1. Review
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  9. Effects ofMetabolism open · 2024
    Article
  10. Review
  11. BDNF Val66Met moderates episodic memory decline and tau biomarker increases in early sporadic Alzheimer's disease.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2024
    Article
  12. Article
  13. Temporal progression of tau pathology and neuroinflammation in a rhesus monkey model of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Plants (Basel, Switzerland) · 2023
    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

6 authors at 3 institutions in 3 countries.

Elyse RosaDepartment of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada.
Sujeivan MahendramDepartment of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada.
Yazi D KeDementia Research Unit, The University of New South Wales, Sydney, Australia.
Lars M IttnerDementia Research Unit, The University of New South Wales, Sydney, Australia.
Stephen D GinsbergCenter for Dementia Research, Nathan Kline Institute, Orangeburg, NY, USA; Department of Psychiatry, New York University Langone Medical Center, Orangeburg, NY, USA; Department of Neuroscience and Physiology, New York University Langone Medical Center, Orangeburg, NY, USA.
Margaret FahnestockDepartment of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada. Electronic address: fahnest@mcmaster.ca.
McMaster University · CAUNSW Sydney · AUNathan Kline Institute for Psychiatric Research · US

Funding

Uncovering Alzheimer's disease risk mechanisms through neuron-specific analysis of autophagy and endosomal-lysosomal functionP01AG017617 · NIA · NATHAN S. KLINE INSTITUTE FOR PSYCH RES · PI NIXON, RALPH A. · 2000 to 2021
$40.0M
TAU, AB, SYNUCLEIN AND NITRATIVE/OXIDATIVE DAMAGE IN MCIP01AG014449 · NIA · UNIVERSITY OF PITTSBURGH · PI IKONOMOVIC, MILOS D · 1997 to 2024
$39.7M
Cellular and Molecular Medial Temporal Lobe Pathology in Elderly PreMCI subjectsR01AG043375 · NIA · ST. JOSEPH'S HOSPITAL AND MEDICAL CENTER · PI GINSBERG, STEPHEN D, MUFSON, ELLIOTT JAY · 2013 to 2017
$3.6M
CIHR MOP-102723NIA NIH HHS P01 AG014449NIA NIH HHS P01 AG017617NIA NIH HHS R01 AG043375
6 · The paper itself

Abstract

In Alzheimer's disease, soluble tau accumulates and deposits as neurofibrillary tangles (NFTs). However, a precise toxic mechanism of tau is not well understood. We hypothesized that overexpression of wild-type tau downregulates brain-derived neurotrophic factor (BDNF), a neurotrophic peptide essential for learning and memory. Two transgenic mouse models of human tau expression and human tau (hTau40)-transfected human neuroblastoma (SH-SY5Y) cells were used to examine the effect of excess or pathologically modified wild-type human tau on BDNF expression. Both transgenic mouse models, with or without NFTs, as well as hTau40-SH-SY5Y cells significantly downregulated BDNF messenger RNA compared with controls. Similarly, transgenic mice overexpressing amyloid-β (Aβ) significantly downregulated BDNF expression. However, when crossed with tau knockout mice, the resulting animals exhibited BDNF levels that were not statistically different from wild-type mice. These results demonstrate that excess or pathologically modified wild-type human tau downregulates BDNF and that neither a mutation in tau nor the presence of NFTs is required for toxicity. Moreover, our findings suggest that tau at least partially mediates Aβ-induced BDNF downregulation. Therefore, Alzheimer's disease treatments targeting Aβ alone may not be effective without considering the impact of tau pathology on neurotrophic pathways.

Indexed as

Alzheimer DiseaseAnimalsBrain-Derived Neurotrophic FactorCells, CulturedDisease Models, AnimalDown-RegulationGene ExpressionGene Expression RegulationMice, TransgenicNeurofibrillary TanglesRNA, MessengerTauopathiestau ProteinsBrain-Derived Neurotrophic FactorRNA, Messengertau ProteinsAlzheimer's diseaseAmyloid-βBrain-derived neurotrophic factorTauTauopathyTransgenic mice

Identifiers

PMID27676333
PMCPMC5159317
OpenAlexW2514934551

What OpenQuestion holds

Textmetadata
LicenceTDM
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.