Evidence map›Paper›PMID 32417749›Full record

ArticleNeurobiology of aging2020

Longitudinal flortaucipir ([

Rene L Utianski, Hugo Botha, Jennifer L Whitwell, Peter R Martin, Christopher G Schwarz, Joseph R Duffy, Heather M Clark, Anthony J Spychalla, Matthew L Senjem, Ronald C Petersen and 4 more

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 47% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Review
  3. 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

14 authors at 3 institutions in 1 country.

Rene L UtianskiDepartments of Neurology, Mayo Clinic, Rochester, MN, USA. Electronic address: Utianski.Rene@mayo.edu.
Hugo BothaDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
Jennifer L WhitwellDepartments of Radiology, Mayo Clinic, Rochester, MN, USA.
Peter R MartinDepartments of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
Christopher G SchwarzDepartments of Radiology, Mayo Clinic, Rochester, MN, USA.
Joseph R DuffyDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
Heather M ClarkDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
Anthony J SpychallaDepartments of Radiology, Mayo Clinic, Rochester, MN, USA.
Matthew L SenjemDepartments of Radiology, Mayo Clinic, Rochester, MN, USA; Departments of Information Technology, Mayo Clinic, Rochester, MN, USA.
Ronald C PetersenDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
David S KnopmanDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
Clifford R JackDepartments of Radiology, Mayo Clinic, Rochester, MN, USA.
Val J LoweDepartments of Radiology, Mayo Clinic, Rochester, MN, USA.
Keith A JosephsDepartments of Neurology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic · USMayo Clinic in Arizona · USMayo Clinic in Florida · US

Funding

SUPPLEMENT TO ALZHEIMERS DISEASE PATIENT REGISTRYU01AG006786 · NIA · MAYO CLINIC ROCHESTER · PI GRAFF-RADFORD, JONATHAN, JACK, CLIFFORD R. · 1986 to 2023
$49.6M
Research Education ComponentP30AG062677 · NIA · MAYO CLINIC ROCHESTER · PI Walter K. Kremers · 2019 to 2026
$33.5M
Assessment of hyperphosphorylated tau PET binding in primary progressive aphasiaR21NS094684 · NINDS · MAYO CLINIC ROCHESTER · PI JOSEPHS, KEITH A · 2016 to 2017
$417k
NIA NIH HHS P30 AG062677NIA NIH HHS U01 AG006786NINDS NIH HHS R21 NS094684
6 · The paper itself

Abstract

To assess volume loss and flortaucipir uptake in patients with semantic dementia (SD) over time. Eight SD patients (3 female) underwent clinical evaluations, flortaucipir positron emission tomography, and brain magnetic resonance imaging at 2 visits. Voxel-level comparisons of magnetic resonance imaging gray and white matter volume loss and flortaucipir positron emission tomography uptake were performed in SPM12, comparing SD patients to controls at each visit. T-tests on difference images and paired t-tests of flortaucipir uptake were also performed. At the voxel level, SD patients showed asymmetric, bilateral gray volume loss in the temporal lobes, which, via visual inspection, extended posteriorly at follow-up. White matter loss and flortaucipir uptake were noted in SD patients in the left temporal lobe only, which appeared to extend posteriorly, without involvement of the right hemisphere at follow-up. Longitudinal analyses did not support significant changes in flortaucipir uptake between visits. The biological mechanisms of flortaucipir signal in suspected underlying TAR-DNA binding protein 43 pathology are unknown. A 1-year interval is not sufficient time to demonstrate significant longitudinal flortaucipir uptake changes in SD.

Indexed as

CarbolinesPositron-Emission TomographyRadiopharmaceuticalsAgedBrainDementiaDNA-Binding ProteinsFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedTDP-43 Proteinopathies7-(6-fluoropyridin-3-yl)-5H-pyrido(4,3-b)indoleCarbolinesDNA-Binding ProteinsRadiopharmaceuticalsTARDBP protein, humanMRIPETPrimary progressive aphasiaSemantic dementiaTau

Identifiers

PMID32417749
PMCPMC7365267
OpenAlexW3016860992

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.