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Record W2577018854 · doi:10.1016/j.dadm.2016.12.011

Peripheral inflammatory markers indicate microstructural damage within periventricular white matter hyperintensities in Alzheimer's disease: A preliminary report

2017· article· en· W2577018854 on OpenAlexafffund
Walter Swardfager, Di Yu, Joel Ramirez, Hugo Cogo‐Moreira, Gregory M. Szilagyi, Melissa F. Holmes, Christopher J.M. Scott, Gustavo Scola, Pak Cheung Chan, Jialun Chen, Parco Chan, Demetrios J. Sahlas, Nathan Herrmann, Krista L. Lanctôt, Ana C. Andreazza, Jacqueline A. Pettersen, Sandra E. Black

Bibliographic record

VenueAlzheimer s & Dementia Diagnosis Assessment & Disease Monitoring · 2017
Typearticle
Languageen
FieldMedicine
TopicAdvanced Neuroimaging Techniques and Applications
Canadian institutionsUniversity of Northern British ColumbiaMcMaster UniversityHealth Sciences CentreCentre for Addiction and Mental HealthSunnybrook Health Science CentreHeart and Stroke FoundationToronto Rehabilitation InstituteUniversity of TorontoUniversity Health Network
FundersCognoptixCanadian Institutes of Health ResearchAlzheimer SocietySunnybrook Research InstituteUniversity of TorontoBiogenHeart and Stroke Foundation of CanadaPfizerEli Lilly and Company
KeywordsHyperintensityWhite matterDiffusion MRIPathologyFractional anisotropyMedicineMagnetic resonance imagingPeripheralInflammationDiseaseLesionDementiaInternal medicineRadiology

Abstract

fetched live from OpenAlex

Abstract Introduction White matter hyperintensities (WMH) presumed to reflect cerebral small vessel disease and increased peripheral inflammatory markers are found commonly in Alzheimer's disease (AD), but their interrelationships remain unclear. Methods Inflammatory markers were assayed in 54 elderly participants ( n = 16 with AD). Periventricular WMH were delineated from T1, T2/proton density, and fluid‐attenuated magnetic resonance imaging using semiautomated fuzzy lesion extraction and coregistered with maps of fractional anisotropy (FA), a measure of microstructural integrity assessed using diffusion tensor imaging. Results Mean FA within periventricular WMH was associated with an inflammatory factor consisting of interleukin (IL)‐1β, tumor necrosis factor, IL‐10, IL‐21, and IL‐23 in patients with AD (ρ = −0.703, P = .002) but not in healthy elderly (ρ = 0.217, P = .190). Inflammation was associated with greater FA in deep WMH in healthy elderly (ρ = 0.425, P = .008) but not in patients with AD (ρ = 0.174, P = .520). Discussion Peripheral inflammatory markers may be differentially related to microstructural characteristics within the white matter affected by cerebral small vessel disease in elders with and without AD.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.010
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.041
GPT teacher head0.349
Teacher spread0.307 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations55
Published2017
Admission routes2
Has abstractyes

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