Evidence map›Paper›PMID 29298724›Full record

ArticleActa neuropathologica communications2018

Brainstem tau pathology in Alzheimer's disease is characterized by increase of three repeat tau and independent of amyloid β.

Miho Uematsu, Ayako Nakamura, Momoko Ebashi, Katsuiku Hirokawa, Ryosuke Takahashi, Toshiki Uchihara

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Experimentally evoked pain in Alzheimer's disease.Journal of the American Association of Nurse Practitioners · 2021
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Article
  7. Locus coeruleus-entorhinal cortex tract integrity is linked to plasma tau and glial fibrillary acidic protein.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  8. Observational
  9. Article
  10. Article
  11. Oxidative Stress Triggers a Pivotal Peptide Linked to Alzheimer's Disease.International journal of molecular sciences · 2024
    Article
  12. Article
  13. Article
  14. Evidence for a novel neuronal mechanism driving Alzheimer's disease, upstream of amyloid.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
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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

6 authors at 4 institutions in 1 country.

Miho UematsuLaboratory of Structural Neuropathology, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
Ayako NakamuraLaboratory of Structural Neuropathology, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
Momoko EbashiLaboratory of Structural Neuropathology, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
Katsuiku HirokawaDepartment of Pathology, Nitobe-Memorial Nakano General Hospital, Nakano-ku, Tokyo, Japan.
Ryosuke TakahashiDepartment of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan.
Toshiki UchiharaLaboratory of Structural Neuropathology, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan. uchihara-ts@igakuken.or.jp.
Kyoto University · JPTokyo Metropolitan Institute of Medical Science · JPNakano General Hospital · JPNihon University · JP

Funding

Japan Society for the Promotion of Science 14J04872Japan Society for the Promotion of Science 16K14572Japan Society for the Promotion of Science KAKENHI 17H03555
6 · The paper itself

Abstract

introductionAlzheimer-type neuropil threads (NTs) and neurofibrillary tangles (NFTs) are comprised of either 4 repeat (4R)-tau, 3 repeat (3R)-tau, or a mixture of both. In the hippocampus, the number of NFTs, and the proportion of 3R tau progressively increases. If this preferential accumulation of 3R tau also occurs in the brainstem, it may be fundamentally related to progression of Alzheimer pathology.

methodsMidbrain and pontine sections of brainstems from 23 cases (Braak-NFT stages I/II: 8, III/IV: 8, and V/VI: 7) were double immunofluorolabeled for 4R and 3R tau. High-resolution (0.645 μm/pixel), in-focus snapshots were tiled to cover entire brain sections using a virtual slide system. Each lesion was classified by size (NT < 200 μm

resultsThe data sets obtained from approximately 286 gigabytes of image files consisted of 847,763 NTs and 7859 NFTs. The proportion of 3R tau-positive NTs and NFTs in the midbrain, and 3R tau-positive NTs in the pons gradually increased with advancing NFT stages, while the proportion of 3R tau-positive NFTs in the pons was already elevated at early stages. Aβ deposits were absent at NFT stages I/II, and when present at later stages, their regional distribution was different from that of tau. These observations suggest that a progressive increase in the proportion of 3R tau occurs independently of Aβ deposits.

conclusionsThis is the first quantitative analysis of NFTs and NTs in the human brainstem. We demonstrate that the proportion of 3R tau in the brainstem neurofibrillary changes increases with disease progression. Because this phenomenon is shared between the brainstem and the hippocampus, this increase may be fundamental to the pathogenesis of Alzheimer disease.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesBrain StemDisease ProgressionFemaleHumansMaleMiddle AgedNeurofibrillary TanglesNeuropil Threadstau ProteinsAmyloid beta-Peptidestau ProteinsAlzheimer disease pathologyBrainstemHuman brainTau isoformVirtual slide imaging

Identifiers

PMID29298724
PMCPMC5753447
OpenAlexW2781705645

What OpenQuestion holds

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LicenceCC BY
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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.