Evidence map›Paper›PMID 34873815›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2022

Differential expression of tau species and the association with cognitive decline and synaptic loss in Alzheimer's disease.

Sivaprakasam R Saroja, Abhijeet Sharma, Patrick R Hof, Ana C Pereira

Open access · greenAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.0field-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

31 citing papers in PubMed, 47 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Sivaprakasam R SarojaDepartment of Neurology, Icahn School of Medicine, Mount Sinai, New York, New York, USA.
Abhijeet SharmaDepartment of Neurology, Icahn School of Medicine, Mount Sinai, New York, New York, USA.
Patrick R HofNash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Ana C PereiraDepartment of Neurology, Icahn School of Medicine, Mount Sinai, New York, New York, USA.
Allen Institute for Brain Science · USIcahn School of Medicine at Mount Sinai · US

Funding

VESICULAR LOCALIZATION AND FUNCTION OF PRESENILIN 1 FRAGMENTP50AG005138 · NIA · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI GROSSMAN, HILLEL · 1985 to 2019
$37.9M
Research Education ComponentP30AG066514 · NIA · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Mary Sano · 2020 to 2026
$31.0M
Mechanisms of Susceptibility of Excitatory Neurons to Tau Pathology and Neurodegeneration in Alzheimer's diseaseR01AG063819 · NIA · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI PEREIRA, ANA C. · 2020 to 2024
$3.9M
Mechanisms of Obstructive Sleep Apnea in Tau Pathophysiology, Risk and Progression of Alzheimer's DiseaseR01AG064020 · NIA · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI PEREIRA, ANA C. · 2019 to 2023
$2.9M
Enhancing Glutamate Transport in Age-related Cognitive Decline and Alzheimer's DiseaseK76AG054772 · NIA · ROCKEFELLER UNIVERSITY · PI PEREIRA, ANA C. · 2016 to 2020
$820k
NIA NIH HHS K76 AG054772NIA NIH HHS P30 AG066514NIA NIH HHS P50 AG005138NIA NIH HHS R01 AG063819NIA NIH HHS R01 AG064020
6 · The paper itself

Abstract

Pathological tau proteins in patients with Alzheimer's disease (AD) mainly accumulate in the form of neurofibrillary tangles (NFTs) and neuritic plaques (NPs). However, the molecular properties of tau species present in NFTs and NPs are not known. We tested the hypothesis that tau species within NFT-predominant tissue (NFT_AD) are distinct and more toxic than those in NP-predominant tissue (NP_AD). We analyzed the tau species from post mortem prefrontal cortical brains of NFT_AD and NP_AD. Compared to NP_AD, NFT_AD displayed highly phosphorylated tau oligomers, possessed tau oligomers in extracellular vesicles, and the 3-repeat (3R) and 4-repeat (4R) isoforms were differentially expressed between the groups. Comparison of tau proteins isolated from NFT- versus NP-AD subjects demonstrated higher tau seeding activity in NFT subjects and a greater degree of inducing synaptic loss in cultured neurons. We propose that tau species from NFT-predominant tissues possess greater levels of degenerative properties, thereby causing synaptic loss and cognitive decline.

Indexed as

Alzheimer DiseaseCognitive DysfunctionHumansNeurofibrillary TanglesPlaque, AmyloidProtein Isoformstau ProteinsProtein Isoformstau ProteinsAlzheimer's diseasecognitive impairmentextracellular vesicles and Serpina3nneurodegenerationsynaptic losstau pathology

Identifiers

PMID34873815
PMCPMC9170833
OpenAlexW4200223651

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.