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Record W3085016592 · doi:10.7326/m20-0990

Effectiveness of <i>Curcuma longa</i> Extract for the Treatment of Symptoms and Effusion–Synovitis of Knee Osteoarthritis

2020· article· en· W3085016592 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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueAnnals of Internal Medicine · 2020
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCurcumin's Biomedical Applications
Canadian institutionsnot available
Fundersnot available
KeywordsMedicineOsteoarthritisWOMACSynovitisPlaceboEffusionKnee painVisual analogue scaleRandomized controlled trialAdverse effectSurgeryInternal medicineArthritisPathology

Abstract

fetched live from OpenAlex

Background: Current pharmacologic therapies for patients with osteoarthritis are suboptimal. Objective: To determine the efficacy of Curcuma longa extract (CL) for reducing knee symptoms and effusion–synovitis in patients with symptomatic knee osteoarthritis and knee effusion–synovitis. Design: Randomized, double-blind, placebo-controlled trial. (Australian New Zealand Clinical Trials Registry: ACTRN12618000080224) Setting: Single-center study with patients from southern Tasmania, Australia. Participants: 70 participants with symptomatic knee osteoarthritis and ultrasonography-defined effusion–synovitis. Intervention: 2 capsules of CL (n = 36) or matched placebo (n = 34) per day for 12 weeks. Measurements: The 2 primary outcomes were changes in knee pain on a visual analogue scale (VAS) and effusion–synovitis volume on magnetic resonance imaging (MRI). The key secondary outcomes were change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain and cartilage composition values. Outcomes were assessed over 12 weeks. Results: CL improved VAS pain compared with placebo by −9.1 mm (95% CI, −17.8 to −0.4 mm [P = 0.039]) but did not change effusion–synovitis volume (3.2 mL [CI, −0.3 to 6.8 mL]). CL also improved WOMAC knee pain (−47.2 mm [CI, −81.2 to −13.2 mm]; P = 0.006) but not lateral femoral cartilage T2 relaxation time (−0.4 ms [CI, −1.1 to 0.3 ms]). The incidence of adverse events was similar in the CL (n = 14 [39%]) and placebo (n = 18 [53%]) groups (P = 0.16); 2 events in the CL group and 5 in the placebo group may have been treatment related. Limitation: Modest sample size and short duration. Conclusion: CL was more effective than placebo for knee pain but did not affect knee effusion–synovitis or cartilage composition. Multicenter trials with larger sample sizes are needed to assess the clinical significance of these findings. Primary Funding Source: University of Tasmania and Natural Remedies Private Limited.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.106
Threshold uncertainty score0.271

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.020
GPT teacher head0.311
Teacher spread0.291 · 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