Expression and Role of Myeloid-related Protein-14 in Clinical and Experimental Sepsis
Why this work is in the frame
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Bibliographic record
Abstract
RATIONALE: Myeloid-related protein-8 (MRP8) and MRP14 can form heterodimers that elicit a variety of inflammatory responses. We showed that MRP8/14 is a ligand for Toll-like receptor-4, and that mice deficient in MRP8/14 are protected against endotoxic shock-induced lethality. OBJECTIVES: To determine (1) the extent of MRP8/14 release in patients with sepsis and/or peritonitis and in healthy humans exposed to LPS and (2) the contribution of MRP8/14 to the host response in murine abdominal sepsis. METHODS: MRP8/14 was measured in 51 patients with severe sepsis, 8 subjects after intravenous injection of LPS, and 17 patients with peritonitis. Host responses to sepsis were compared in mrp14 gene-deficient (and thereby MRP8/14-deficient) and wild-type mice intraperitoneally injected with Escherichia coli. MEASUREMENTS AND MAIN RESULTS: Patients with sepsis displayed elevated circulating MRP8/14 concentrations on both Days 0 and 3, and LPS injection resulted in systemic MRP8/14 release in healthy humans. In patients with peritonitis, MRP8/14 levels in abdominal fluid were more than 15-fold higher than in plasma. MRP14-deficient mice displayed improved defense against E. coli abdominal sepsis in an early phase, as indicated by diminished dissemination of the bacteria at 6 hours. In addition, MRP14-deficient mice demonstrated decreased systemic inflammation, as reflected by lower cytokine plasma concentrations, and less severe liver damage. CONCLUSIONS: Human sepsis and endotoxemia are associated with enhanced release of MRP8/14. In abdominal sepsis, MRP8/14 likely occurs primarily at the site of the infection, facilitating bacterial dissemination at an early phase and liver injury.
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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 | 0.000 | 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 | 0.001 |
| 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