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Record W3092499429

A Multi-Omics Epidemiologic Study of Alzheimer’s disease

2020· article· en· W3092499429 on OpenAlexfundno aff
Shahzad Ahmad

Bibliographic record

VenueRePub (Erasmus University, Rotterdam) · 2020
Typearticle
Languageen
FieldMedicine
TopicDiet and metabolism studies
Canadian institutionsnot available
FundersNational Institute on Deafness and Other Communication DisordersNational Institute on AgingCanadian Institutes of Health ResearchDementias Platform UKNational Institute of Neurological Disorders and StrokeIXICOH. Lundbeck A/SServierInnovative Medicines InitiativeKarl-Franzens-Universität GrazNational Institutes of HealthÖsterreichische ForschungsförderungsgesellschaftMedizinische Universität GrazOesterreichische NationalbankEisaiNederlandse Organisatie voor Wetenschappelijk OnderzoekGenentechErasmus Medisch CentrumEuropean Regional Development FundBundesministerium für Bildung und ForschungInstituto de Salud Carlos IIIAustrian Science FundZonMwEU Joint Programme – Neurodegenerative Disease ResearchAlzheimer NederlandBiogenBioClinicaPfizerNational Heart, Lung, and Blood InstituteNovartis Pharmaceuticals CorporationKWF KankerbestrijdingUniversity of TorontoNational Human Genome Research InstituteUK Dementia Research InstituteEuropean Federation of Pharmaceutical Industries and AssociationsEli Lilly and CompanyU.S. Department of DefenseMedical Research CouncilMeso Scale DiagnosticsEuropean CommissionBristol-Myers Squibb
KeywordsDiseaseDementiaOmicsMechanism (biology)BioinformaticsMedicineNeuroscienceBiologyPathology
DOInot available

Abstract

fetched live from OpenAlex

Alzheimer’s disease (AD) is a devastating neurodegenerative disease that accounts for more than 70% of worldwide dementia cases. The rising AD prevalence in aging populations is posing a substantial economic and health challenge. Unfolding the events leading to the development of AD may guide drug and preventive treatment research. Recent advances in multi-omics technology enable us to disentangle the molecular mechanism underlying AD pathophysiology. I have used multi-omics layers to enhance further our understanding of the molecular pathways underlying AD risk and pathophysiology. In this thesis, I identified biological pathways that may contribute to early AD pathology. I also evaluated the role of proteins and metabolites in the circulation and their interaction with AD risk genes. I found elevated levels of the HAGH and CDH6 proteins in blood in pre-dementia cases in the Rotterdam Study, and findings were replicated in an independent cohort. Findings from this thesis also underscore the role of signaling lipids in the pathophysiology of AD. Finally, this thesis provides new insight into the determinants of the gut-liver-brain axis in 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)0.002
metaresearch head score (Gemma)0.006
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 score0.007
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.006
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.003
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.000

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 head0.095
GPT teacher head0.298
Teacher spread0.203 · 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

Citations0
Published2020
Admission routes1
Has abstractyes

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Same venueRePub (Erasmus University, Rotterdam)Same topicDiet and metabolism studiesFrench-language works237,207