Role of prostaglandins in the loss of lymphatic contractile function in the experimental guinea pig model of TNBS‐induced ileitis
Bibliographic record
Abstract
The lymphatic vessel pumping is critical in maintaining tissue fluid homeostasis, particularly during edematous stress, such as inflammation. Loss of this function (i.e. dilated hyporesponsive lymphatic vessels) previously observed during experimental intestinal inflammation could be mediated by prostaglandins, which are heavily involved in the intestinal inflammatory response and potently alter lymphatic contractility. We thus evaluated the ability of lymphatics to synthesize and respond to prostaglandins in physiological and inflammatory conditions. Using real time PCR, we analyzed mesenteric lymphatics, arteries, veins, mesothelium and ileum obtained from control animals, TNBS‐treated guinea pigs and their sham counterpart for the following mRNA transcripts: COX‐1, COX‐2, prostacyclin synthase, prostaglandin E (PGE) synthase 1 and 2, prostacyclin receptor, and PGE 2 receptors EP1, EP2, EP3 and EP4. We also measured PGE 2 content in lymphatics by ELISA. When compared to sham and control animals, we observed an upregulation of COX‐2 mRNA and a downregulation of PGE synthase 2 and EP4 receptor mRNAs in lymphatics and ileum of TNBS‐treated animals. Preliminary data also showed an increase in PGE 2 content in lymphatics from TNBS‐treated animals. Our results further suggest alteration of PGE 2 function in lymphatics of TNBS‐treated guinea pigs Supported by the Crohn's and Colitis Foundation of Canada
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".