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Record W1985861853 · doi:10.1517/14728220802600707

Regulation of the Na<sup>+</sup>/H<sup>+</sup>exchanger in the healthy and diseased myocardium

2008· review· en· W1985861853 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueExpert Opinion on Therapeutic Targets · 2008
Typereview
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicIon Transport and Channel Regulation
Canadian institutionsUniversity of Alberta
FundersCanadian Institutes of Health Research
KeywordsSodium–hydrogen antiporterExtracellularIntracellularIschemiaGene isoformIntracellular pHMuscle hypertrophyCell biologyMAPK/ERK pathwayChemistryKinaseHomeostasisPhosphorylationReperfusion injurySodium-calcium exchangerInternal medicineBiochemistryBiologyEndocrinologySodiumMedicine

Abstract

fetched live from OpenAlex

BACKGROUND: Na(+)/H(+) exchangers (NHE's) are membrane proteins that regulate ion fluxes, they extrude one intracellular proton in exchange for one extracellular sodium thereby regulating intracellular pH. Mammalian NHE's have nine isoforms, NHE1-NHE9. NHE1 is present in all mammalian cell and is the only isoform present in cardiomyocytes. NHE1 contributes to damage to the myocardium with ischemia and reperfusion and to heart hypertrophy. OBJECTIVE: To summarize the current state of knowledge with regard to regulation of NHE1 in the myocardium. METHODS: A review of relevant literature. RESULTS: Inhibition of NHE reduces ischemia-reperfusion damage and development of hypertrophy. Extracellular-signal-regulated kinase (ERK)-dependent phosphorylation activates NHE1 in the myocardium. Ischemia and subsequent reperfusion activates the ERK-dependent pathway and may lead to aggravation of damage. CONCLUSIONS: Elucidation of the regulatory pathway of NHE1 in the myocardium could lead to novel approaches to reduce heart hypertrophy and ischemia-reperfusion damage.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.988
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
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 head0.035
GPT teacher head0.307
Teacher spread0.272 · 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