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Variation in the methylenetetrahydrofolate dehydrogenase 1‐like (MTHFD1L) gene and cardiovascular disease (CVD) risk

2009· article· en· W63341791 on OpenAlexaff
Susan M. Wernimont, Andrew G. Clark, Patrick J. Stover, Martin T. Wells, Augusto A. Litonjua, Scott T. Weiss, J. Michael Gaziano, Patricia A. Cassano

Bibliographic record

VenueThe FASEB Journal · 2009
Typearticle
Languageen
FieldMedicine
TopicFolate and B Vitamins Research
Canadian institutionsNutrasource
FundersNational Institutes of Health
KeywordsGenotypeInternational HapMap ProjectLinkage disequilibriumSingle-nucleotide polymorphismGenome-wide association studyBiologyGeneticsGenotypingSNPLocus (genetics)Internal medicineMedicineGene

Abstract

fetched live from OpenAlex

Two recent genome‐wide association (GWA) studies identified an intronic SNP (rs6922269) in a region of high linkage disequilibrium (LD) in the MTHFD1L gene that was associated with an increased heart disease risk. The present study explored joint genotypes across 6 variants in this LD block in relation to CVD using a nested case‐control design (378 cases, 425 noncases). OR and 95% CI for the joint genotypes were estimated with conditional logistic regression. In HapMap CEU data, certain joint genotypes were found to be unambiguous proxies for the rs6922269 and rs9767752 SNPs, thus these genotypes could be inferred. Participants with combinations that were unambiguous proxies for genotype rs6922269 AA had a 1.27‐fold increased CVD risk vs. genotype GG (95% CI 0.75, 2.1), a finding similar in magnitude to GWA findings, albeit with lower power. The rs9767752 SNP is proximal to an exon, and joint genotypes that were an unambiguous proxy for the CC genotype (vs. TT genotype) at this locus showed the strongest association with CVD (OR 2.28; 95% CI 1.0, 5.1). Joint genotypes representing the rs9767752 CT genotype were associated with a reduced CVD risk (0.79; 95% CI 0.5, 1.3). Overall the results serve as an adequate replication of association between variation in MTHFD1L and CVD. Funding: NIH T32 DK007158 ‐33 (SMW), G105 NHLBI Resequencing and Genotyping Service (PAC). Grant Funding Source NIH T32 DK007158 ‐33 (SMW)

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)0.001
metaresearch head score (Gemma)0.003
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 score0.005
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.019
GPT teacher head0.265
Teacher spread0.246 · 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
Published2009
Admission routes1
Has abstractyes

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