N2O strongly prevents adhesion formation and postoperative pain in open surgery through a drug-like effect
Bibliographic record
Abstract
Abstract Background Microsurgical tenets and peritoneal conditioning during laparoscopic surgery (LS) decrease postoperative adhesions and pain. For a trial in human, the strong beneficial effects of N 2 O needed to be confirmed in open surgery (OS). Results In a mouse model for OS, the effect of the gas environment upon adhesions was evaluated. Experiment I evaluated desiccation and the duration of exposure to CO 2 , N 2 O or CO 2 + 4%O 2 . Experiment II evaluated the dose-response curve of adding N 2 O to CO 2 . Experiment III compared humidified CO 2 + 10% N 2 O during LS and OS. In OS, 30- and 60-min exposure to non-humidified CO 2 caused mortality of 33 and 100%, respectively. Mortality was prevented by humidification, by dry N 2 O or dry CO 2 + 4%O 2 . Adhesions increased with the duration of exposure to CO 2 ( p < 0.0001) and decreased slightly by humidification or by the addition of 4% O 2 . N 2 O strongly decreased adhesions at concentrations of 5% or greater. With humidified CO 2 + 10% N 2 O, adhesion formation was similar in OS and LS. Conclusions The drug-like and strong beneficial effect of low concentrations of N 2 O is confirmed in OS.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.008 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".