Evidence map›Paper›PMID 20407918›Full record

ArticlePharmaceutical research2010

Antibacterial efficacy of inhalable levofloxacin-loaded polymeric nanoparticles against E. coli biofilm cells: the effect of antibiotic release profile.

Wean Sin Cheow, Matthew Wook Chang, Kunn Hadinoto

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2010. 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
–field-weighted citation impact
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.

  1. Article
  2. Article
  3. RSC advances · 2022
    Article
  4. Review
  5. Article
  6. Formulation and characterization of tobramycin-chitosan nanoparticles coated with zinc oxide nanoparticles.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2022
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Lipid-polymer hybrid nanoparticles carrying linezolid improve treatment of methicillin-resistant Staphylococcus aureus (MRSA) harbored inside bone cells and biofilms.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2020
    Article
  14. Review
  15. Article
  16. Article
  17. Emerging and re-emerging infectious disease in otorhinolaryngology.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2018
    Review
  18. Article
  19. Antimicrobial Polymers in the Nano-World.Nanomaterials (Basel, Switzerland) · 2017
    Review
  20. Review
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

3 authors.

Wean Sin CheowSchool of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore.
Matthew Wook Chang
Kunn Hadinoto

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the effect of the antibiotic release profiles of levofloxacin-loaded polymeric nanoparticles on their antibacterial efficacy against E. coli biofilm cells.

methodsThree distinct antibiotic release profiles are produced by encapsulating levofloxacin in PCL and PLGA nanoparticles by nanoprecipitation and emulsification-solvent-evaporation methods. The antibacterial efficacy is examined over six days by time-dependent biofilm susceptibility testing that takes into account the effects of the biofilm age, antibiotic exposure history, and simulated drug removal.

resultsBiofilm cells that survive the initial antibiotic exposure exhibit a higher antibiotic tolerance than fresh biofilm cells, where the lower the initial exposure, the higher the tolerance of the surviving biofilm cells. The lower antibiotic susceptibility of the surviving biofilm cells is transferred to their planktonic cell progeny, which can subsequently form new biofilm colonies having a higher antibiotic tolerance, hence exacerbating the infections. A biphasic extended release profile at an appropriate dose can inhibit the biofilm growth for four days, therefore reducing the dosing frequency. The importance of a high initial antibiotic exposure renders a slow release profile ineffective despite the same dosing amount.

conclusionsThe antibiotic release profile has an equally significant influence on the biofilm eradication rate as the antibiotic dose.

Indexed as

LevofloxacinNanoparticlesAdministration, InhalationAnti-Bacterial AgentsBiofilmsEscherichia coliMicrobial Sensitivity TestsOfloxacinTime FactorsAnti-Bacterial AgentsLevofloxacinOfloxacin

Identifiers

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.