Evidence map›Paper›PMID 19738006›Full record

ArticleAntimicrobial agents and chemotherapy2009

Pharmacodynamic profile of tigecycline against methicillin-resistant Staphylococcus aureus in an experimental pneumonia model.

Pornpan Koomanachai, Jared L Crandon, Mary Anne Banevicius, Li Peng, David P Nicolau

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Antimicrobial agents and chemotherapy · 2020
    Article
  3. Article
  4. The Continuing Threat of Methicillin-ResistantAntibiotics (Basel, Switzerland) · 2019
    Review
  5. Article
  6. An Inhibitory Effect of Dryocrassin ABBA onFrontiers in microbiology · 2019
    Article
  7. Article
  8. Antimicrobial agents and chemotherapy · 2017
    Article
  9. Antimicrobial agents and chemotherapy · 2017
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. 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

5 authors at 2 institutions in 2 countries.

Pornpan KoomanachaiCenter for Anti-Infective Research and Development, Hartford Hospital, Hartford, CT 06102, USA.
Jared L Crandon
Mary Anne Banevicius
Li Peng
David P Nicolau
Hartford Hospital · USMahidol University · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tigecycline (TGC) is an extended-spectrum antibiotic with activity against Staphylococcus aureus, including methicillin (meticillin)-resistant S. aureus strains, which are well-recognized pathogens in nosocomial pneumonia. The objective of this study was to characterize the exposure-response relationship for TGC against S. aureus in an immunocompromised BALB/c murine pneumonia model. Six S. aureus isolates were studied, and the TGC MICs for those isolates ranged from 0.125 to 0.5 mg/liter. The pharmacokinetics (PK) of TGC in serum and bronchoalveolar lavage (BAL) fluid were evaluated, as was the level of protein binding of the compound in this murine species. Administration of TGC at 1.56 to 150 mg/kg of body weight/day in single or two to three divided doses was used in the efficacy studies. TGC displayed linear PK and had a mean half-life of 10.9 +/- 2.5 h. Efficacy was highly correlated with the area under the free concentration-time curve (fAUC)/MIC (r(2) = 0.93). The 80% and 50% effective exposure indexes and the stasis exposure index were similar between the isolates (means +/- standard deviations, 3.04 +/- 1.12, 1.84 +/- 1.3, and 1.9 +/- 1.5, respectively). Maximal efficacy was predicted at a 2.85-log(10)-CFU reduction. TGC appeared to accumulate in the interstitial space, as the ratios of the fAUC from 0 to 8 h of epithelial lining fluid to plasma were 7.02, 15.11, and 23.95 for doses of 12.5, 25, and 50 mg/kg, respectively. TGC was highly effective in this murine pneumonia model. In light of current MIC distributions, the fAUC/MIC targets that we defined against S. aureus are readily achievable in humans given conventional doses of TGC.

Indexed as

AnimalsAnti-Bacterial AgentsFemaleMethicillin-Resistant Staphylococcus aureusMiceMice, Inbred BALB CMinocyclinePneumoniaStaphylococcal InfectionsTigecyclineAnti-Bacterial AgentsMinocyclineTigecycline

Identifiers

PMID19738006
PMCPMC2786358
OpenAlexW2106784206

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.