The Cri1 locus is the common genetic cause of susceptibility to<i>Citrobacter rodentium</i>infection in C3H and FVB mouse strains.
Bibliographic record
Abstract
Citrobacter rodentium is a natural pathogen of mice that causes intestinal hyperplasia and colitis. Resistant strains such as C57BL/6J (B6) experience a self-limiting disease that peaks between one and two weeks post infection, followed by a clearing of the infection and complete recovery. However, the inbred mouse strains C3H/HeJ (C3), C3H/HeOuJ (C3Ou) and FVB/N (FVB) are highly susceptible to C. rodentium infection and develop more severe symptoms of disease leading to high rates of mortality during infection. We have recently demonstrated through a systematic genetics approach that a single locus on proximal chromosome 15 is responsible for the susceptibility of both C3 and C3Ou mice to C. rodentium infection. We have named the locus Citrobacter rodentium infection 1 (Cri1). Here we show that Cri1 also controls susceptibility to C. rodentium in FVB mice, using a targeted method of genotyping to stratify (B6 x FVB)F2 mice according to their genotype at Cri1. Mice that inherit two copies of the resistant B6 allele have 97% cumulative survival at day 30 post-infection, whereas those that inherit one or two copies of Cri1 from the FVB parent have significantly lower rates of survival (35% and 42%, respectively). These results provide evidence for a common genetic cause of fatal infectious colitis in C3, C3Ou and FVB mice following infection with Citrobacter rodentium.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".