Evidence map›Paper›PMID 33597002›Full record

ArticleAlzheimer's research & therapy2021

Does insulin resistance influence neurodegeneration in non-diabetic Alzheimer's subjects?

Grazia Daniela Femminella, Nicholas R Livingston, Sanara Raza, Thalia van der Doef, Eleni Frangou, Sharon Love, Gail Busza, Valeria Calsolaro, Stefan Carver, Clive Holmes and 31 more

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 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
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  3. Estimated glucose disposal rate is associated with brain aging and dementia among diabetes-free older adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
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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

41 authors at 20 institutions in 3 countries.

Grazia Daniela FemminellaDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Nicholas R LivingstonDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Sanara RazaDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Thalia van der DoefDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Eleni FrangouUniversity of Oxford, Oxford, UK.
Sharon LoveUniversity of Oxford, Oxford, UK.
Gail BuszaDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Valeria CalsolaroDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Stefan CarverDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Clive HolmesUniversity of Southampton, Southampton, UK.
Craig W RitchieUniversity of Edinburgh, Edinburgh, UK.
Robert M LawrenceSouth West London and St George's Mental Health NHS Trust, London, UK.
Brady McFarlaneSouthern Health NHS Foundation Trust, Southampton, UK.
George TadrosHeart of England NHS Foundation Trust, Birmingham, UK.
Basil H RidhaBrighton and Sussex University Hospital Trust, Brighton, UK.
Carol BannisterKing's College London, London, UK.
Zuzana WalkerMental Health Unit, St. Margaret's Hospital, Epping, Essex, UK.
Hilary ArcherNorth Bristol NHS Trust, Bristol, UK.
Elizabeth CoulthardNorth Bristol NHS Trust, Bristol, UK.
Ben UnderwoodCambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK.
Aparna PrasannaBlack Country Partnership NHS Foundation Trust, Wolverhampton, UK.
Paul KorantengNorthamptonshire Healthcare NHS Foundation Trust, Northampton, UK.
Salman KarimLancashire Care NHS Foundation Trust, Preston, UK.
Kehinde JunaidNottinghamshire Healthcare NHS Foundation Trust, Nottingham, UK.
Bernadette McGuinnessQueen's University Belfast, Belfast, UK.
Anthony Peter PassmoreQueen's University Belfast, Belfast, UK.
Ramin NilforooshanSurrey and Borders Partnership NHS Foundation Trust, Chertsey, UK.
Ajayverma MacharouthuNHS Ayrshire and Arran, Kilmarnock, UK.
Andrew DonaldsonNHS Lanarkshire, Airdrie, UK.
Simon ThackerDerbyshire Healthcare NHS Foundation Trust, Derby, UK.
Gregor RussellBradford District Care NHS Foundation Trust, Bradford, UK.
Naghma MalikNorth West Boroughs Partnership NHS Foundation Trust, Warrington, UK.
Vandana MateCornwall Partnership NHS Foundation Trust, Redruth, UK.
Lucy KnightSomerset Partnership NHS Foundation Trust, South Petherton, UK.
Sajeev KshemendranSouth Staffordshire and Shropshire Healthcare NHS Foundation Trust, Shrewsbury, UK.
Tricia TanDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
Christian HolscherResearch and Experimental Center, Henan University of Chinese Medicine, Zhengzhou, China.
John HarrisonAlzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
David J BrooksNewcastle University, Newcastle upon Tyne, UK.
Clive BallardUniversity of Exeter Medical School, Exeter, UK.
Paul EdisonDivision of Neurology, Neurology Imaging Unit, Department of Brain Sciences, Imperial College London, 1st Floor B Block, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK. paul.edison@imperial.ac.uk.
Hammersmith Hospital · GBImperial College London · GBNorth Bristol NHS Trust · GBQueen's University Belfast · GBUniversity of Oxford · GBAmsterdam Neuroscience · NLBlack Country Partnership NHS Foundation Trust · GBBradford District Care NHS Foundation Trust · GBCambridgeshire and Peterborough NHS Foundation Trust · GBCornwall Partnership NHS Foundation Trust · GBFirst Affiliated Hospital of Henan University · CNHeart of England NHS Foundation Trust · GBKing's College London · GBLancashire Care NHS Foundation Trust · GBNewcastle University · GBNHS Ayrshire and Arran · GBNHS Lanarkshire · GBNorthamptonshire Healthcare NHS Foundation Trust · GBNorth West Boroughs Healthcare NHS Foundation Trust · GBNottinghamshire Healthcare NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundType 2 diabetes is a risk factor for Alzheimer's disease (AD), and AD brain shows impaired insulin signalling. The role of peripheral insulin resistance on AD aetiopathogenesis in non-diabetic patients is still debated. Here we evaluated the influence of insulin resistance on brain glucose metabolism, grey matter volume and white matter lesions (WMLs) in non-diabetic AD subjects.

methodsIn total, 130 non-diabetic AD subjects underwent MRI and [18F]FDG PET scans with arterial cannula insertion for radioactivity measurement. T1 Volumetric and FLAIR sequences were acquired on a 3-T MRI scanner. These subjects also had measurement of glucose and insulin levels after a 4-h fast on the same day of the scan. Insulin resistance was calculated by the updated homeostatic model assessment (HOMA2). For [18F]FDG analysis, cerebral glucose metabolic rate (rCMRGlc) parametric images were generated using spectral analysis with arterial plasma input function.

resultsIn this non-diabetic AD population, HOMA2 was negatively associated with hippocampal rCMRGlc, along with total grey matter volumes. No significant correlation was observed between HOMA2, hippocampal volume and WMLs.

conclusionsIn non-diabetic AD, peripheral insulin resistance is independently associated with reduced hippocampal glucose metabolism and with lower grey matter volume, suggesting that peripheral insulin resistance might influence AD pathology by its action on cerebral glucose metabolism and on neurodegeneration.

Indexed as

Alzheimer DiseaseDiabetes Mellitus, Type 2Insulin ResistanceBrainFluorodeoxyglucose F18GlucoseHumansMagnetic Resonance ImagingPositron-Emission TomographyFluorodeoxyglucose F18GlucoseAlzheimer’s diseaseInsulin resistanceMagnetic resonance imagingPositron emission tomography imaging

Identifiers

PMID33597002
PMCPMC7890851
OpenAlexW3130913951

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.