Histopathological Study of Intrahepatic Islets Transplanted in the Nonhuman Primate Model Using Edmonton Protocol Immunosuppression
Bibliographic record
Abstract
While islet cell transplantation is a promising way to restore insulin independence to patients with type I diabetes mellitus, a detailed histological analysis of the transplanted, intraportal islets has not yet been reported. Rhesus macaques underwent total pancreatectomy, then had allogeneic isolated islets infused into their portal vein, followed by daclizumab, tacrolimus, and sirolimus to prevent islet rejection. Islets were evenly distributed among the liver lobes. Liver sections from a primate given allogeneic islets 5 d earlier did not display any islet capillary formation, whereas intrahepatic islets transplanted 30 and 90 d before euthanasia showed an abundant capillary supply. Localized hepatocellular glycogenosis was observed surrounding the islets in a primate with functioning islets 7 months post transplant. Liver sections from a primate that rejected islets transplanted 2 months prior displayed only islet remnants with prominent local lymphohistiocytic inflammation and an occasional capillary. We conclude that islets develop an abundant vascular supply within 30 d following transplant and because capillaries persist even following rejection, that the vascular cells are likely from the recipient. While transplanted islets were not vascularized early post transplant, the primates remained insulin independent. The long-term consequence of islets in the liver, marked by the glycogenosis, remains unknown and warrants further study.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".