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Record W2050687873 · doi:10.1159/000249475

Study of Psoriatic Epidermal Cell Kinetics and Cell Death after Oral Methotrexate

2009· article· en· W2050687873 on OpenAlex
Julia A. Newton, Richard S. Camplejohn, Cressida Bowyer, D.H. McGibbon, Nicholas A. Wright

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

VenueDermatologica · 2009
Typearticle
Languageen
FieldMedicine
TopicAcute Lymphoblastic Leukemia research
Canadian institutionsSt. Thomas Hospital
Fundersnot available
KeywordsPsoriasisMethotrexateEpidermis (zoology)PharmacologyOral administrationMedicineImmunologyCancer researchAnatomy

Abstract

fetched live from OpenAlex

Epidermal cell proliferation in psoriasis was studied after oral methotrexate using tritiated uridine. Psoriatic enteropathy has in the past been reported to reduce the absorption of methotrexate administered orally but this study showed that the onset of inhibition of mitosis and DNA synthesis occurred at the same time as after intramuscular administration of the drug. The cell kinetic data indicate that cells were blocked at the G1/S interface, and the kinetics of inhibition are discussed in terms of their implications for the mode of action of methotrexate in psoriasis. Considerable numbers of dead cells were seen in the epidermis from 6 to 24 h after oral methotrexate. The mode of action of methotrexate in psoriasis is currently unknown but whatever other actions it may have, any global hypothesis of its action will have to incorporate a flux to epidermal cell death.

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 score0.092
Threshold uncertainty score0.626

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
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 head0.030
GPT teacher head0.308
Teacher spread0.279 · 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