Evidence map›Paper›PMID 29159268›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2017

Olfactory identification in subjective cognitive decline and mild cognitive impairment: Association with tau but not amyloid positron emission tomography.

Shannon L Risacher, Eileen F Tallman, John D West, Karmen K Yoder, Gary D Hutchins, James W Fletcher, Sujuan Gao, David A Kareken, Martin R Farlow, Liana G Apostolova and 1 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 11% 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

50 citing papers in PubMed, 3 syntheses or guidelines pooled it, 64 citations in OpenAlex.

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  13. Association of Cognitive Impairment and Peripheral Inflammation in Methamphetamine-dependent Patients: A Cross-sectional Study on Neuroinflammatory Markers TNF-α and IL-6.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2025
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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

11 authors at 2 institutions in 1 country.

Shannon L RisacherDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Eileen F TallmanDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
John D WestDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Karmen K YoderDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Gary D HutchinsDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
James W FletcherDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Sujuan GaoIndiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN USA.
David A KarekenDepartment of Neurology, Indiana University School of Medicine, Indianapolis, IN USA.
Martin R FarlowIndiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN USA.
Liana G ApostolovaDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Andrew J SaykinDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA.
Indiana University – Purdue University Indianapolis · USIndiana University School of Medicine

Funding

Research Education ComponentP30AG010133 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 1991 to 2020
$37.3M
Memory Circuitry in MCI and Early Alzheimer’s Disease Prodrome: Molecular DriversR01AG019771 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 2001 to 2021
$6.9M
Sensory and Perceptual Measures as Biomarkers of Alzheimer's Disease PathologyK01AG049050 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI RISACHER, SHANNON L · 2015 to 2019
$612k
NIA NIH HHS K01 AG049050NIA NIH HHS P30 AG010133NIA NIH HHS R01 AG019771
6 · The paper itself

Abstract

introductionWe investigated the association between olfactory identification and Alzheimer's disease biomarkers, including amyloid, tau, and neurodegeneration.

methodsThirty-four older adults, including 19 cognitively normal (CN), 10 subjective cognitive decline (SCD), and 5 mild cognitive impairment, underwent amyloid positron emission tomography, magnetic resonance imaging, and the University of Pennsylvania Smell Identification Test (UPSIT). Twenty-six also underwent tau positron emission tomography. Associations between the UPSIT and regionally sampled amyloid, tau, and temporal atrophy were evaluated. Voxel-wise regression models were also utilized. Analyses were conducted with the full sample and only CN/SCD.

resultsLower UPSIT scores were associated with increased temporal and parietal tau burden in regional and voxel-wise analyses in the full sample and in CN and SCD only. Temporal lobe atrophy was associated with lower UPSIT score. Amyloid was not associated with the UPSIT. DISCUSSION: Impairment on the UPSIT may be a good marker for tau and neurodegeneration in preclinical or prodromal Alzheimer's disease.

Indexed as

[18F]Flortaucipir (AV-1451)Alzheimer's diseaseNeurodegenerationOlfactionTau

Identifiers

PMID29159268
PMCPMC5675709
OpenAlexW2759724754

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.