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Record W1997555068 · doi:10.1089/109629601750469483

Peritoneal Host Defenses: Modulation by Carbon Dioxide Insufflation

2001· review· en· W1997555068 on OpenAlex
Ori D. Rotstein

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

VenueSurgical Infections · 2001
Typereview
Languageen
FieldMedicine
TopicAbdominal Surgery and Complications
Canadian institutionsUniversity Health NetworkUniversity of Toronto
Fundersnot available
KeywordsMedicineInsufflationPeritoneal cavityPneumoperitoneumLipopolysaccharidePeritoneumIntracellularTumor necrosis factor alphaIn vivoMesotheliumProinflammatory cytokineInflammationPhagocytosisPharmacologyImmunologyPathologyAnesthesiaLaparoscopySurgeryBiologyCell biology

Abstract

fetched live from OpenAlex

BACKGROUND: The host response to inflammatory stimuli in the peritoneal cavity consists of coordinated interactions of physical factors, cells, and soluble mediator molecules. Following infection, this is characterized by rapid eradication of large numbers of bacteria via the diaphragmatic lymphatics, clearance of bacteria through phagocytosis and intracellular killing, and, finally, sequestration of residual bacteria by inflammatory fibrinous exudate. Increasingly, surgical infections and major operations with the potential for postoperative infection are being managed laparoscopically, with CO(2) insufflation. The effects of CO(2) on intraperitoneal host defenses are still being defined. METHODS: Review of the pertinent literature and results from our laboratory. RESULTS: Exposure of peritoneal macrophages in vitro to CO(2) causes intracellular acidification, which in turn suppresses production of tumor necrosis factor (TNF) in response to exposure to lipopolysaccharide (LPS). In comparison, neither room air nor helium had any effect on cytosolic pH or the peritoneal macrophage response to LPS. Insufflation of CO(2) into the preperitoneal space in vivo caused similar peritoneal lining acidosis and reduced TNF production compared with insufflation of helium. CONCLUSION: CO(2) pneumoperitoneum created during laparoscopy appears to exert immunosuppressive effects through its ability to acidify the intracellular compartment of inflammatory cells. This may contribute to the improved recovery in patients undergoing laparoscopic surgery.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.994
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
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 head0.045
GPT teacher head0.344
Teacher spread0.298 · 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