Evidence map›Paper›PMID 31235728›Full record

ArticleScientific reports2019

Dual β-lactam combination therapy for multi-drug resistant Pseudomonas aeruginosa infection: enhanced efficacy in vivo and comparison with monotherapies of penicillin-binding protein inhibition.

Thanyaluck Siriyong, Rachael M Murray, Lucy E Bidgood, Simon A Young, Florence Wright, Benjamin J Parcell, Supayang Piyawan Voravuthikunchai, Peter J Coote

Open access · goldAbstract readComparative Study
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.9field-weighted citation impact, top 32% 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

22 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
  2. Article
  3. Optimizing target inactivation to treat multidrug-resistantAntimicrobial agents and chemotherapy · 2026
    Article
  4. Integrating Modified FeCurrent microbiology · 2025
    Article
  5. ACS infectious diseases · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Global Threat of Carbapenem-Resistant Gram-Negative Bacteria.Frontiers in cellular and infection microbiology · 2022
    Review
  15. Review
  16. β-lactam Resistance inPathogens (Basel, Switzerland) · 2021
    Review
  17. Review
  18. Article
  19. Review
  20. 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

8 authors at 3 institutions in 2 countries.

Thanyaluck SiriyongBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK.
Rachael M MurrayBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK.
Lucy E BidgoodBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK.
Simon A YoungBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK.ORCID http://orcid.org/0000-0003-1072-905X
Florence WrightBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK.
Benjamin J ParcellNHS Tayside, Medical Microbiology, Ninewells Hospital and Medical School, Dundee, DD1 9SY, UK.
Supayang Piyawan VoravuthikunchaiDepartment of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Songkhla, Thailand.
Peter J CooteBiomedical Sciences Research Complex, School of Biology, University of St Andrews, The North Haugh, St Andrews, Fife, KY16 9ST, UK. pjc5@st-andrews.ac.uk.
University of St Andrews · GBPrince of Songkla University · THNHS Tayside · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the study was to determine the efficacy of dual β-lactam combination treatments derived from eight approved drugs against Galleria mellonella larvae infected with MDR strains of P. aeruginosa. Carbapenem-resistant P. aeruginosa NCTC 13437 and an unrelated clinical isolate were used to infect G. mellonella larvae and the efficacy of twenty-eight dual β-lactam combination therapies were compared to their constituent monotherapies. For the most potent combinations identified, penicillin-binding protein (PBP) inhibition profiles were measured and compared with each constituent antibiotic. Five of the dual β-lactam combinations resulted in greater than 70% survival of infected G. mellonella. Two combinations showed potent, enhanced efficacy versus both strains - ceftazidime + meropenem and aztreonam + meropenem. Comparison of PBP inhibition profiles revealed that the enhanced efficacy of these two dual β-lactam combinations could not be explained by more potent inhibition of PBPs or inhibition of a broader range of PBPs. A possible contribution to the enhanced efficacy of the combinations could be stimulation of innate immunity via increased haemocyte numbers compared to their constituent monotherapies. Combinations of β-lactam antibiotics show promise in overcoming MDR P. aeruginosa and are worthy of additional study and development.

Indexed as

AnimalsAnti-Bacterial Agentsbeta-LactamsDrug InteractionsDrug Resistance, MultipleHumansLepidopteraPenicillin-Binding ProteinsPseudomonas aeruginosaPseudomonas InfectionsSurvival AnalysisAnti-Bacterial Agentsbeta-LactamsPenicillin-Binding Proteins

Identifiers

PMID31235728
PMCPMC6591303
OpenAlexW2953784263

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.