The transcription factor EPAS-1/hypoxia-inducible factor 2α plays an important role in vascular remodeling
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Bibliographic record
Abstract
We have studied the role of the basic helix-loop-helix-PAS transcription factor EPAS-1/hypoxia-inducible factor 2alpha in vascular development by gene targeting. In ICR/129 Sv outbred background, more than half of the mutants displayed varying degrees of vascular disorganization, typically in the yolk sac, and died in utero between embryonic day (E)9.5 and E13.5. In mutant embryos directly derived from EPAS-1(-/-) embryonic stem cells (hence in 129 Sv background), all embryos developed severe vascular defects both in the yolk sac and embryo proper and died between E9.5 and E12.5. Normal blood vessels were formed by vasculogenesis but they either fused improperly or failed to assemble into larger vessels later during development. Our results suggest that EPAS-1 plays an important role at postvasculogenesis stages and is required for the remodeling of the primary vascular network into a mature hierarchy pattern.
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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 | 0.001 | 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