Evidence map›Paper›PMID 33568215›Full record

ArticleAlzheimer's research & therapy2021

Early anterior cingulate involvement is seen in presymptomatic MAPT P301L mutation carriers.

Mica T M Clarke, Frédéric St-Onge, Jean-Mathieu Beauregard, Martina Bocchetta, Emily Todd, David M Cash, Jonathan D Rohrer, Robert Laforce

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
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  11. Frontotemporal Dementia and Glucose Metabolism.Frontiers in neuroscience · 2022
    Review
  12. [Neurology · 2021
    Article
  13. Article
  14. Relationship between neuroimaging and cognition in frontotemporal dementia: An FDG-PET and structural MRI study.Journal of neuroimaging : official journal of the American Society of Neuroimaging
    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

8 authors at 3 institutions in 2 countries.

Mica T M Clarke *Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK. mica.clarke.15@ucl.ac.uk.ORCID 0000-0003-0570-4296
Frédéric St-Onge *Centre de Recherche du CHU de Québec, Université Laval, Québec, QC, Canada.
Jean-Mathieu BeauregardCHU de Québec, Québec, QC, Canada.
Martina BocchettaDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Emily ToddDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
David M CashDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Jonathan D Rohrer *Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Robert Laforce *Centre de Recherche du CHU de Québec, Université Laval, Québec, QC, Canada.
UK Dementia Research Institute · GBCentre hospitalier universitaire de Québec · CAUniversité Laval · CA

Funding

CIHR MOP137116Medical Research Council MR/M008525/1Medical Research Council MR/M023664/1Medical Research Council MR/T046015/1
6 · The paper itself

Abstract

backgroundPET imaging of glucose metabolism has revealed presymptomatic abnormalities in genetic FTD but has not been explored in MAPT P301L mutation carriers. This study aimed to explore the patterns of presymptomatic hypometabolism and atrophy in MAPT P301L mutation carriers.

methodsEighteen asymptomatic members from five families with a P301L MAPT mutation were recruited to the study, six mutation carriers, and twelve mutation-negative controls. All participants underwent standard behavioural and cognitive assessment as well as [

resultsThe mean (standard deviation) estimated years from symptom onset was 12.5 (3.6) in the mutation carrier group with a range of 7 to 18 years. No differences in cognition were seen between the groups, and all mutation carriers had a global CDR plus NACC FTLD of 0. Significant reduction in [

conclusionsAnterior cingulate hypometabolism and atrophy are both apparent presymptomatically in a cohort of P301L MAPT mutation carriers. Such a specific marker may prove to be helpful in stratification of presymptomatic mutation carriers in future trials.

Indexed as

Frontotemporal DementiaGyrus CinguliGray MatterHumansMagnetic Resonance ImagingMutationtau ProteinsMAPT protein, humantau ProteinsFrontotemporal dementiaGlucose metabolismPET imagingPresymptomatic

Identifiers

PMID33568215
PMCPMC7876816
OpenAlexW3128082452

What OpenQuestion holds

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LicenceCC BY
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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.