Respiratory and nasal symptoms during live-cat versus milled cat hair exposure
Bibliographic record
Abstract
<bold>Introduction:</bold> The Red Maple Trials NEC is a fixed exposure chamber where allergen shed from live cats is aerosolized using a modified robot vacuum. The Mobile NEC™ is a portable allergen exposure tent, where milled cat hair is aerosolized in a similar manner. This study was designed to compare the allergic response to cat antigen provocation in the Mobile NEC™ and the Fixed NEC™. <bold>Method:</bold> Cat allergic subjects (skin-prick test mean diameter ≥5mm) underwent a 2-hour exposure to cat allergen in the Fixed NEC and the Mobile NEC. Fel d 1 measured by sampling pumps was quantified by ELISA. Nasal, ocular and respiratory symptoms were measured every 10 minutes and spirometry every 20 minutes. Subjects with an FEV1 fall ≥20% of baseline or low nasal symptom scores during the first challenge were not rechallenged. <bold>Results:</bold> Eight subjects completed both challenges. Mean Total Nasal Symptom Score (TNSS) was higher in the Mobile NEC for most of the 2-hour duration (p<0.001); however, TNSS averaged over the last 30 minutes was not (paired t-test, p=0.16; mean (SE) 6.1 (1.2) and 4.5 (0.6), Mobile and Fixed NEC , respectively). Although there was no difference in FEV<sub>1</sub> between the two challenges (p=0.52), respiratory symptom scores were higher in the Mobile NEC over the last 60 minutes of the exposure (p=0.002). There was no difference in average Fel d 1 concentrations between the chambers (Mobile: 55; Fixed: 54 ng/m<sup>3</sup>). <bold>Conclusions:</bold> The Mobile NEC offers comparable cat-allergen exposure and nasal and respiratory responses to the Fixed NEC. Its portability facilitates expansion to multi-site chamber studies for clinical validation of allergy therapies. Future work could expand its capabilities to other aeroallergens.
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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 | 0.000 | 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) | 0.001 | 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".