Proteoglycan Synthesis by the Neointimal Smooth Muscle Cells Cultured from Rabbit Aortic Explants following De-Endothelialization
Why this work is in the frame
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Bibliographic record
Abstract
Proteoglycans (PGs), the essential component of the extracellular matrix, are implicated in the pathogenesis of atherosclerosis. In an experimental model of injury, PGs accumulate in the neointimal tissue parallel with lipid deposition. However, it is still not clear whether the PG accumulation is from active smooth muscle cell (SMC) production or is a consequence of trapping within neointima covered by endothelium. To study the effect of endothelial injury on PG synthesis, SMCs were cultured from normal aorta (N-SMC), neointima covered by regenerated endothelium (W-SMC) and neointima without endothelium (B-SMC). Using [35S]-Na2SO4, as a precursor in an in vitro incubation, the kinetics of PG synthesis were determined. PG synthesis by all three cell types increases as a function of time. It is significantly higher in the SMCs cultured from endothelium-denuded aortic explants (W- and B-SMC) than N-SMC. This finding indicates that endothelial injury stimulates PG synthesis by SMCs.
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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