Evidence map›Paper›PMID 22064542›Full record

ArticleAntimicrobial agents and chemotherapy2012

Differential effects of linezolid and ciprofloxacin on toxin production by Bacillus anthracis in an in vitro pharmacodynamic system.

Arnold Louie, Brian D Vanscoy, Henry S Heine, Weiguo Liu, Terry Abshire, Kari Holman, Robert Kulawy, David L Brown, George L Drusano

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 34% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Omadacycline is activeAntimicrobial agents and chemotherapy · 2024
    Article
  4. Central Nervous System Antimicrobial Exposure and Proposed Dosing for Anthrax Meningitis.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024
    Article
  5. CDC Guidelines for the Prevention and Treatment of Anthrax, 2023.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2023
    Article
  6. Article
  7. Article
  8. Treating Anthrax-Induced Meningitis in Rabbits.Antimicrobial agents and chemotherapy · 2018
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
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 2 institutions in 1 country.

Arnold LouieInstitute for Therapeutic Innovation, University of Florida-Albany Campus, Albany, New York, USA. alouie@medicine.ufl.edu
Brian D Vanscoy
Henry S Heine
Weiguo Liu
Terry Abshire
Kari Holman
Robert Kulawy
David L Brown
George L Drusano
University of Florida · USUnited States Army Medical Research Institute of Infectious Diseases · US

Funding

Yersinia PestisP01AI060908 · NIAID · ORDWAY RESEARCH INSTITUTE, INC. · PI DRUSANO, GEORGE LOUIS · 2005 to 2009
$8.8M
NIAID NIH HHS P01 AI060908NIAID NIH HHS P01AI060908
6 · The paper itself

Abstract

Bacillus anthracis causes anthrax. Ciprofloxacin is a gold standard for the treatment of anthrax. Previously, using the non-toxin-producing ΔSterne strain of B. anthracis, we demonstrated that linezolid was equivalent to ciprofloxacin for reducing the total (vegetative and spore) bacterial population. With ciprofloxacin therapy, the total population consisted of spores. With linezolid therapy, the population consisted primarily of vegetative bacteria. Linezolid is a protein synthesis inhibitor, while ciprofloxacin is not. Since toxins are produced only by vegetative B. anthracis, the effect of linezolid and ciprofloxacin on toxin production is of interest. The effect of simulated clinical regimens of ciprofloxacin and linezolid on the vegetative and spore populations and on toxin production was examined in an in vitro pharmacodynamic model over 15 days by using the toxin-producing Sterne strain of B. anthracis. Ciprofloxacin and linezolid reduced the total Sterne population at similar rates. With ciprofloxacin therapy, the total Sterne population consisted of spores. With linezolid therapy, >90% of the population was vegetative B. anthracis. With ciprofloxacin therapy, toxin was first detectable at 3 h and remained detectable for at least 5 h. Toxin was never detected with linezolid therapy. Ciprofloxacin and linezolid reduced the total Sterne population at similar rates. However, the B. anthracis population was primarily spores with ciprofloxacin therapy and was primarily vegetative bacteria with linezolid therapy. Toxin production was detected for at least 5 h with ciprofloxacin therapy but was never detected with linezolid treatment. Linezolid may have an advantage over ciprofloxacin for the treatment of B. anthracis infections.

Indexed as

AcetamidesAnthraxAnti-Bacterial AgentsBacillus anthracisBacterial LoadBacterial ToxinsCiprofloxacinDiffusion Chambers, CultureInfusion PumpsLinezolidMicrobial Sensitivity TestsModels, BiologicalOxazolidinonesSpores, BacterialAcetamidesAnti-Bacterial AgentsBacterial ToxinsCiprofloxacinLinezolidOxazolidinones

Identifiers

PMID22064542
PMCPMC3256020
OpenAlexW2058548711

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.