Association of a dog leukocyte antigen class II haplotype with hypoadrenocorticism in Nova Scotia Duck Tolling Retrievers
Why this work is in the frame
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Bibliographic record
Abstract
Canine hypoadrenocorticism (Addison's disease) is due to a deficiency of corticosteroids and mineralocorticoids produced by the adrenals. Although this is a relatively uncommon disease in the general dog population, some breeds, including the Nova Scotia Duck Tolling Retriever (NSDTR), are at increased risk for developing hypoadrenocorticism. A prior study has shown that the increased risk is due to a heritable component. This potentially lethal disorder is hypothesized to have an autoimmune etiology, thus the aim of this study was to determine whether genetic susceptibility to hypoadrenocorticism in NSDTRs is associated with genes of the canine major histocompatibility complex [MHC; dog leukocyte antigen system (DLA)]. Samples were collected from NSDTRs diagnosed with hypoadrenocorticism and healthy siblings or country-matched controls. The DLA class II alleles and haplotypes were determined and compared between cases and controls. We found seven different haplotypes of which the haplotype DLA-DRB1*01502/DQA*00601/DQB1*02301 was significantly more prevalent in the diseased dogs (P = 0.044). In addition, these affected dogs also were more likely to be homozygous across the DLA class II region than the control dogs (OR = 6.7, CI = 1.5-29.3, P = 0.011). We also found that homozygous dogs, regardless of their haplotype, tended to have earlier disease onset compared with heterozygous dogs. These data indicate a limited MHC diversity in North American NSDTRs and suggest that the MHC may play a role in the development of hypoadrenocorticism in the NSDTR, supporting the autoimmune origin of the disease.
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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 | 0.001 |
| 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