Superoxide dismutase activity confers (p)ppGpp-mediated antibiotic tolerance to stationary-phase <i>Pseudomonas aeruginosa</i>
Bibliographic record
Abstract
Significance Antibiotic tolerance causes antibiotic treatment failure and promotes the emergence of genotypic resistance in chronic infections, such as those caused by the pathogen Pseudomonas aeruginosa . Laboratory stationary-phase bacteria exhibit a slow growing and metabolically quiescent state associated with high levels of multidrug tolerance likely analogous to the in vivo environment during chronic infection. We demonstrate that superoxide dismutases confer multidrug tolerance in stationary-phase bacteria, and identify a link between (p)ppGpp-mediated stress responses, superoxide metabolism, and membrane permeability to antibiotics. Inhibition of superoxide dismutase activity may overcome multidrug tolerance and potentiate current bactericidal antibiotics in the treatment of P. aeruginosa chronic infections.
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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 | 0.001 | 0.001 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 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".