Regionalization of the anterior hypothalamus in the chick embryo
Why this work is in the frame
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Bibliographic record
Abstract
Loss-of-function experiments in mice have shown that the transcription factors Sim1, Otp, Sim2, and Brn2 form a cascade essential for the differentiation of neuroendocrine cells of the anterior hypothalamus that produce vasopressin, oxytocin, somatostatin (SS), thyrotropin-releasing hormone (TRH), and corticotropin-releasing hormone (CRH). Very little is known about how the differentiation of these cell types is regulated in chick. Here, we report the cloning of the chick homolog of Otp. Moreover, we have systematically compared the expression of Sim1, Sim2, Brn2, and Otp with that of the markers of terminal differentiation TRH, SS, CRH, vasotocin, and mesotocin during development of chick embryos. We have found that the cell types studied generally develop in domains expressing these transcriptional regulators but that the pattern of neuronal differentiation and the spatial distribution of some regulators were not the same as in mice. Our results provide a framework useful for the functional analysis of hypothalamus development in chick.
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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 | 0.000 | 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