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Record W4280596484 · doi:10.1016/j.hpr.2022.300648

A case of carbidopa/levodopa associated colitis mimicking inflammatory bowel disease

2022· article· en· W4280596484 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

VenueHuman Pathology Reports · 2022
Typearticle
Languageen
FieldMedicine
TopicMicroscopic Colitis
Canadian institutionsTrillium Health CentreMount Sinai Hospital
Fundersnot available
KeywordsMedicineCarbidopaPancolitisGastroenterologyInflammatory bowel diseaseLevodopaInternal medicineColitisDiscontinuationBenserazideIleitisDiseaseCrohn's diseaseParkinson's diseaseColonoscopyColorectal cancerCancer

Abstract

fetched live from OpenAlex

Carbidopa/levodopa is widely used in the management of Parkinson’s disease. We report a 77-year-old male with Parkinson’s disease who developed severe, protracted pancolitis and ileitis after 5-months of treatment with carbidopa/levodopa. The clinical presentation and endoscopic findings initially resembled acute infectious colitis and later inflammatory bowel disease. The patient was unresponsive to intravenous corticosteroids and biologic therapy. Biopsies showed severe colitis with some features suggesting a drug effect (e.g. prominent crypt apoptoses, attenuated and regenerating crypts, and crypt dropout). Discontinuation of carbidopa/levodopa was associated with clinical and endoscopic resolution of the colitis. Levodopa, in combination with benserazide was later re-introduced, without a recurrence of the patient’s gastrointestinal symptoms. We therefore propose carbidopa as the likely cause of colitis in this case.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.387
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
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)0.0010.000

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 head0.283
Teacher spread0.264 · 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