The Severity of Microvascular Dysfunction Due to Compartment Syndrome Is Diminished by the Systemic Application of CO-Releasing Molecule-3
Why this work is in the frame
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Bibliographic record
Abstract
OBJECTIVES: To examine the protective effects of carbon monoxide (CO), liberated from a novel CO-releasing molecule (CORM-3), on the function of compartment syndrome (CS)-challenged muscle in a rodent model, thus providing for a potential development of a pharmacologic adjunctive treatment for CS. METHODS: Wistar rats were randomized into 4 groups: sham (no CS), CS, CS with inactive CORM-3 (iCORM-3), and CS + CORM-3 (10 mg/kg intraperitoneally). CS was induced by elevation of intracompartmental pressure to 30 mm Hg through an infusion of isotonic saline into the anterior compartment of the hind limb for 2 hours. Both CORM-3 and iCORM-3 were injected immediately after fasciotomy. Microvascular perfusion, cellular tissue injury, and inflammatory response within the extensor digitorum longus muscle were assessed using intravital video microscopy 45 minutes after fasciotomy. Systemic levels of tumor necrosis factor alpha (TNF-α) were also measured. RESULTS: Elevation of intracompartmental pressure resulted in significant microvascular perfusion deficits (23% ± 2% continuously perfused capillaries in CS vs. 76% ± 4% in sham, P < 0.0001; 55% ± 2% nonperfused capillaries in CS vs. 13% ± 2% in sham, P < 0.0001), significant increase in tissue injury (ethidium bromide/bisbenzimide of 0.31 ± 0.05 in CS vs. 0.05 ± 0.03 in sham, P < 0.0001) and adherent leukocytes (13.7 ± 0.9 in CS vs. 1.8 ± 0.5 in sham, P < 0.0001), and a progressive rise in systemic TNF-α. CORM-3 (but not iCORM-3) treatment restored the number of continuously perfused capillaries (57% ± 5%, P < 0.001), diminished tissue injury (ethidium bromide/bisbenzimide of 0.07 ± 0.01, P < 0.001), reversed the CS-associated rise in TNF-α, and decreased leukocyte adherence (0.6 ± 0.3, P < 0.001). CONCLUSIONS: CORM-3 displays a potent protective/anti-inflammatory action in an experimental model of CS, suggesting a potential therapeutic application to patients at risk of developing CS.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| 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 it