Cerebral and retinal injuries in a rat model of bronchopulmonary dysplasia: may stem cell therapy with ECFCs repair these injuries?
Bibliographic record
Abstract
Preterm infants are born with underdeveloped lungs and often require assistance from mechanical ventilators to inspire oxygen.Bronchopulmonary Dysplasia (BPD) is a common lung injury in infants exposed to such high oxygen conditions.Encephalopathy of prematurity (EOP) and retinopathy of prematurity (ROP) are cerebral and retinal injuries, respectively, that commonly present alongside BPD.The postnatal exposure to high oxygen concentrations has been mimicked in animals in order to study the resulting injuries.There is currently a lack of animal models investigating the simultaneous effect of mechanical ventilation on the lungs, brain, and retina.The first objective of this thesis was to evaluate the validity of a BPD rat model to reproduce the simultaneous brain and retinal injuries seen in preterm newborns.The second objective of this study was to examine the possible therapeutic effects of stem cell therapy on these injuries.Endothelial colony forming cells (ECFCs) are highly proliferative endothelial progenitors that have been shown to successfully repair the lung structure and microvasculature injuries in the same BPD model used here.This study will evaluate the potential therapeutic effects of ECFCs on brain and retinal injuries.Results show that this BPD rat model reproduces representative brain and retinal injuries of mechanically ventilated preterm newborns with BPD, and treatment with ECFCs seems to show promising antiinflammatory effects in the brain and retina.
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How this classification was reachedexpand
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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".