Evidence map›Paper›PMID 38463040›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)

Explaining variability in early stages of [18F]-flortaucipir tau-PET binding: Focus on sex differences.

Dario Bachmann, Andreas Buchmann, Sandro Studer, Antje Saake, Katrin Rauen, Esmeralda Gruber, Roger M Nitsch, Christoph Hock, Anton Gietl, Valerie Treyer

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Hypertension and cerebral blood flow in the development of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  4. 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

10 authors.

Dario BachmannInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.ORCID https://orcid.org/0000-0002-2863-537X
Andreas BuchmannInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Sandro StuderInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Antje SaakeInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Katrin RauenInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Esmeralda GruberInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Roger M NitschInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Christoph HockInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Anton GietlInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.
Valerie TreyerInstitute for Regenerative Medicine University of Zurich Zurich Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFemale sex is associated with increased [18F]-flortaucipir signal, which may be affected by amyloid pathology, age, and off-target binding in skull and meninges.

methodsIn this cross-sectional study comprising 52 females and 52 matched males, we examined sex-related differences in regional tau-positron emission tomography (PET) with and without considering off-target binding. We assessed the respective contributions of sex, age, amyloid-PET burden, and off-target binding to tau-PET signal. We explored associations between age at menopause and hormone replacement therapy (HRT) use with regional tau-PET signals.

resultsFemale sex was associated with increased regional tau both independently and interactively with amyloid, but amyloid-independent associations were largely reduced when controlling for off-target binding. Age but not age*sex interactions explained a small but significant amount of tau-PET signal in temporoparietal regions. Considering the sample size and limited range of amyloid-PET burden, no clear associations between regional tau-PET signals and age at menopause or HRT use could be found. DISCUSSION: Female sex is associated with increased [18F]-flortaucipir signal mainly through its interaction with amyloid.

Indexed as

age at menopauseAlzheimer's diseaseamyloid pathologyhormone replacement therapyoff‐target bindingtau pathology

Identifiers

PMID38463040
PMCPMC10921068

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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.