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Record W4410014687 · doi:10.1016/j.jacbts.2025.02.009

Persistent Fibrosis and Left Ventricular Chamber Stiffening Despite Cessation of Repetitive Pressure Overload in Swine

2025· article· en· W4410014687 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJACC Basic to Translational Science · 2025
Typearticle
Languageen
FieldMedicine
TopicCardiovascular Function and Risk Factors
Canadian institutionsMcMaster University
FundersNational Heart, Lung, and Blood InstituteNational Center for Advancing Translational SciencesAmerican Heart AssociationU.S. Department of Veterans Affairs
KeywordsMedicineCardiologyFibrosisPressure overloadInternal medicineStiffeningVentricular pressureHeart failureBlood pressure

Abstract

fetched live from OpenAlex

To determine whether repetitive pressure overload-induced left ventricular (LV) fibrosis and LV chamber stiffening are reversible upon normalization of hemodynamics, swine were subjected to 2 weeks of daily phenylephrine (2 h/d) followed by a 2-week or 4-week recovery period. Despite cessation of repetitive pressure overload, interstitial fibrosis persisted, and LV chamber stiffness remained increased for up to 4 weeks of recovery. The persistent increase in LV chamber stiffness was accompanied by dynamic changes in extracellular matrix protein expression. The rapid and persistent increase in LV chamber stiffness may explain how hypertrophy-independent LV stiffening develops in the absence of sustained hypertension.

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.

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.041
Threshold uncertainty score0.262

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
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)0.0000.000

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 head0.009
GPT teacher head0.252
Teacher spread0.243 · 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