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Record W4205941782 · doi:10.1002/alz.054676

The link between blood‐based biomarkers and mild cognitive impairment and Alzheimer's disease in a Panamanian sample

2021· article· en· W4205941782 on OpenAlexaboutno aff
Diana C. Oviedo, Alcibiades E. Villarreal, Giselle Rangel, María B. Carreira, Ámbar Pérez-Lao, Sofía A. Rodriguez, Camilo Posada, Gabrielle B. Britton

Bibliographic record

VenueAlzheimer s & Dementia · 2021
Typearticle
Languageen
FieldMedicine
TopicAlzheimer's disease research and treatments
Canadian institutionsnot available
Fundersnot available
KeywordsBiomarkerMedicineInternal medicineObservational studyCognitive impairmentDiseaseCognitionOncologyMontreal Cognitive AssessmentPhysical therapyPsychiatry

Abstract

fetched live from OpenAlex

Abstract Background Studies on blood‐based biomarkers associated with age‐related cognitive impairment are key to improve intervention mechanisms and delay the expression of symptoms. The objective of this study was to assess the relationship between blood‐based biomarkers and mild cognitive impairment (MCI) and AD in a sample of elderly Panamanians enrolled from an outpatient geriatric service. Method A descriptive, cross‐sectional, observational study was conducted. Participants were 84 Panamanians (controls, n=41; MCI=32; and AD=11). They were assessed with MMSE and Clock Test. Non‐fasting blood samples were collected to genotype for ApoE4 and to determine a blood‐based biomarker profile. Result CRP levels among AD participants were significantly increased relative to MCI participants (p < 0.05). A2M levels in AD participants were significantly increased compared to normal controls (p < 0.05). SAA levels in AD participants were significantly increased when compared to MCI participants (p < 0.05). Conclusion These results show that in the AD group CRP, A2M and SAA are significantly increased. The link between MCI and AD and inflammatory markers can produce an accurate tool that can aid in early diagnosis of 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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.018
Threshold uncertainty score0.035

Distilled classifier scores by category (both heads)

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

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 head0.034
GPT teacher head0.309
Teacher spread0.275 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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

Citations2
Published2021
Admission routes1
Has abstractyes

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