EFFECT OF TEMPORARY TRACHEAL OCCLUSION ON THE ENDOTHELIN SYSTEM IN EXPERIMENTAL CASES OF DIAPHRAGMATIC HERNIA
Why this work is in the frame
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Bibliographic record
Abstract
Previously, the authors have shown that tracheal occlusion (TO) partially reverses the onset of congenital diaphragmatic hernia (CDH)-induced pulmonary hypertension (PH) and abnormal pulmonary vascular development whereas release of the occlusion (TR) abolishes these clinical benefits. As a consequence of their mitogenic and vasoactive properties, the authors hypothesize that the expression of endothelin (ET)-1 and ET receptor (ETA) genes is increased in lungs of CDH lambs, and that this increase is abolished partially in CDH + TO but not in CDH + TO + TR. A surgical left-sided CDH was created in fetal lambs at 80 days of gestation (gd), followed by TO at 108 gd, and by TR at 129 gd. Four groups were compared: CDH, CDH + TO, CDH + TO + TR, and nonoperated controls (C). Assessment of mRNA expression by Northern blot showed significantly lower ET-1 and ETA levels in the CDH group than in the CDH + TO +/- TR groups (P < .05). Endothelin protein expression levels were lower in CDH +/- TO +/- TR groups when compared with controls for airways and vessels (P < .05) with the exception of endothelial cells. In contrast, ETA protein expression levels were higher in CDH +/- TO +/- TR groups compared with controls for airways and blood vessels smooth muscles (P < .05). These results suggest that involvement of the endothelin system in the pulmonary hypertension associated with CDH is limited. However, the endothelin system appears to be modulated during development.
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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 | 0.002 | 0.000 |
| 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 | 0.000 |
| 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