Morphological and Functional Studies on Submucosal Islet Transplants in Normal and Diabetic Hamsters
Why this work is in the frame
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Bibliographic record
Abstract
The long-term outcome of human islet allotransplantation is poor, and it remains to be seen if the Edmonton Protocol will make a positive impact upon the extension of posttransplant islet function. Hence, establishing an implantation site capable of sustaining islet allografts for a prolonged duration needs to be explored. In this study we investigated the submucosal space of the duodenum in Syrian golden hamsters. Following transplantation of more than 800 islets into streptozotocin (STZ)-induced diabetic hamsters, basal nonfasted blood glucose levels decreased from 403 +/- 14 to 143 +/- 10 mg/dl within 5 weeks posttransplantation. In these animals, in vivo islet function, as determined by intravenous glucose tolerance test (IVGTT), was similar to nondiabetic controls (K values: 1.16 +/- 0.12 vs. 0.95 +/- 0.06, respectively) and was significantly greater than diabetic controls (K value: 0.47 +/- 0.07). Islets transplanted into the submucosal space become richly vascularized within 2 weeks, and there is minimal host inflammatory infiltrate. The beta-cells of the graft remain well granulated with insulin for at least 129 days. We conclude that the submucosal space is an effective engraftment site for islets that warrants further development in a large-animal model.
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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