Evidence map›Paper›PMID 15328095›Full record

ArticleAntimicrobial agents and chemotherapy2004

Novel murine model of pneumococcal pneumonia: use of temperature as a measure of disease severity to compare the efficacies of moxifloxacin and levofloxacin.

Darrin J Bast, M Yue, X Chen, D Bell, L Dresser, R Saskin, L A Mandell, D E Low, Joyce C S de Azavedo

Open access · greenAbstract readComparative Study
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.8field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
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  6. Clinically relevant model of pneumococcal pneumonia, ARDS, and nonpulmonary organ dysfunction in mice.American journal of physiology. Lung cellular and molecular physiology · 2019
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  16. Weight loss and reduced body temperature determine humane endpoints in a mouse model of ocular herpesvirus infection.Journal of the American Association for Laboratory Animal Science : JAALAS · 2013
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 3 countries.

Darrin J BastToronto Centre for Antimicrobial Research and Evaluation, Room 1483, Mount Sinai Hospital, 600 University Ave., Toronto, Ontario M5G 1X5, Canada. dbast@mtsinai.on.ca
M Yue
X Chen
D Bell
L Dresser
R Saskin
L A Mandell
D E Low
Joyce C S de Azavedo
Occupational Cancer Research Centre · CAHamilton Health Sciences · CAMount Sinai Hospital · USSt Michael’s Hospital · IEUniversity Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surface temperature measured by an infrared temperature-scanning thermometer was used to evaluate disease severity and predict imminent death in a murine model of pneumococcal pneumonia. We showed that a decrease in temperature was associated with increasing severity of disease and concomitant histological changes and also that a temperature of 30 degrees C or less was a predictor of death. Furthermore, viable bacterial counts in the lungs of mice euthanized at a temperature of < or = 30 degrees C were not significantly different from those seen in the lungs of mice allowed to die without intervention. These data support temperature change as a more subtle indicator of outcome than death and demonstrate that this could be used as a reliable end point for euthanasia. To test the utility of our model in a drug trial, we examined the efficacies of moxifloxacin and levofloxacin by using temperature as a measure of disease severity prior to and during treatment. Regardless of the antibiotic used, mice assessed as moderately ill (temperature > or = 32 degrees C) at the start of treatment had better clinical and bacteriological outcomes than mice assessed as severely ill (temperature < 32 degrees C). However, moxifloxacin offered better protection and greater bacterial clearance than did levofloxacin in all infected mice independent of disease severity. This model not only allows a more subtle evaluation of drug efficacy but also ensures a better degree of standardization and a more humane approach to drug efficacy studies involving animals.

Indexed as

LevofloxacinAnimalsAnti-Bacterial AgentsAza CompoundsBody TemperatureColony Count, MicrobialDisease Models, AnimalFemaleFluoroquinolonesLungMiceMoxifloxacinOfloxacinPneumonia, PneumococcalQuinolinesSkin TemperatureAnti-Bacterial AgentsAza CompoundsFluoroquinolonesLevofloxacinMoxifloxacinOfloxacinQuinolines

Identifiers

PMID15328095
PMCPMC514736
OpenAlexW2138316904

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.