Evidence map›Paper›PMID 21262133›Full record

ArticleComparative medicine2010

Aerosolized Bacillus anthracis infection in New Zealand white rabbits: natural history and intravenous levofloxacin treatment.

Steven B Yee, Joshua M Hatkin, David N Dyer, Steven A Orr, M Louise M Pitt

Open access · greenAbstract read
In one paragraph

Article in Comparative medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Postexposure Prophylaxis and Treatment of Bacillus anthracis Infections: A Systematic Review and Meta-analyses of Animal Models, 1947-2019.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
    Pooled it
  2. Antimicrobial agents and chemotherapy · 2026
    Article
  3. Article
  4. Article
  5. ACS infectious diseases · 2021
    Article
  6. Physiological Responses to Multiple Low-Doses ofPathogens (Basel, Switzerland) · 2020
    Article
  7. Physiological Responses to a Single Low-Dose ofPathogens (Basel, Switzerland) · 2020
    Article
  8. Article
  9. Article
  10. Using Telemetry Data to Refine Endpoints for New Zealand White Rabbits Challenged withJournal of the American Association for Laboratory Animal Science : JAALAS · 2017
    Article
  11. Article
  12. Modeling Rabbit Responses to Single and Multiple Aerosol Exposures of Bacillus anthracis Spores.Risk analysis : an official publication of the Society for Risk Analysis · 2017
    Article
  13. Article
  14. Computational fluid dynamics modeling ofJournal of aerosol science · 2016
    Article
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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

5 authors at 1 institution in 1 country.

Steven B YeeCenter for Aerobiological Sciences, United States Army Medical Institute of Infectious Diseases, Fort Detrick, Maryland, USA. steven.yee@us.army.mil
Joshua M Hatkin
David N Dyer
Steven A Orr
M Louise M Pitt
United States Army Medical Research Institute of Infectious Diseases · US

Funding

NIAID NIH HHS Y1-AI-6129-04
6 · The paper itself

Abstract

The natural history for inhalational Bacillus anthracis (Ames strain) exposure in New Zealand white rabbits was investigated to better identify potential, early biomarkers of anthrax. Twelve SPF Bordetella-free rabbits were exposed to 150 LD(50) aerosolized B. anthracis spores, and clinical signs, body temperature, complete blood count, bacteremia, and presence of protective antigen in the blood (that is, antigenemia) were examined. The development of antigenemia and bacteremia coincided and preceded both pyrexia and inversion of the heterophil:lymphocyte ratio, an indicator of infection. Antigenemia was determined within 1 h by electrochemiluminescence immunoassay, compared with the 24-h traditional culture needed for bacteremia determination. Rabbits appeared clinically normal until shortly before succumbing to anthrax approximately 47 h after challenge or approximately 22 h after antigenemia, which suggests a relatively narrow therapeutic window of opportunity. To evaluate the therapeutic rabbit model, B. anthracis-exposed rabbits were treated (after determination of antigenemia and later confirmed to be bacteremic) intravenously with the fluoroquinolone antibiotic levofloxacin for 5 d at a total daily dose of 25 or 12.5 mg/kg, resulting in nearly 90% and 70% survival, respectively, to the study end (28 d after challenge). The peak level for 12.5 mg/kg was equivalent to that observed for a 500-mg daily levofloxacin dose in humans. These results suggest that intravenous levofloxacin is an effective therapeutic against inhalational anthrax. Taken together, our findings indicate that antigenemia is a viable and early biomarker for B. anthracis infection that can be used as a treatment trigger to allow for timely intervention against this highly pathogenic disease.

Indexed as

LevofloxacinAerosolsAnimalsAnthraxAnti-Bacterial AgentsAntigens, BacterialBacillus anthracisBacteremiaBiomarkersFemaleMaleOfloxacinRabbitsSpores, BacterialTime FactorsAerosolsAnti-Bacterial AgentsAntigens, BacterialBiomarkersLevofloxacinOfloxacin

Identifiers

PMID21262133
PMCPMC3002106
OpenAlexW85329026

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.