Long Nerve Allografts in Sheep with Cyclosporin a Immunosuppression
Why this work is in the frame
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Bibliographic record
Abstract
Rodent studies of nerve allografts are limited by a relatively short length of graft segment. The authors attempted to establish an outbred sheep model that would allow the study of longer, more clinically relevant nerve gaps. Using outbred ewes, two 8-cm long radial sensory nerves were grafted into gaps (5 cm) in the median nerve. Sheep received an autograft and an allograft. Four sheep were immunosuppressed with Cyclosporin A (CsA) and four were controls. Blood CsA levels greater than 1000 microg/L were obtained. Systemic immunosuppression resulted in severe opportunistic infections, and the sheep were sacrificed between 35 and 47 days following surgery. Histologically, in the autografts and CsA-treated allografts, evidence of nerve regeneration was seen. Non-immunosuppressed allografts were clearly rejected. While clear differences in the histology of experimental and control grafted nerve tissues were seen, the sheep allograft model presents considerable challenges due to immunosuppression-related infectious complications.
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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 | 0.001 |
| 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