ArticleBMC microbiology2023
Study of Combined Effect of Bacteriophage vB3530 and Chlorhexidine on the Inactivation of Pseudomonas aeruginosa.
Article in BMC microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
- Synergistic disinfection by phage PLY101 and 1.3-dibromo-5.5-dimethylhydantoin (DBDMH) against resistant Proteus mirabilis.BMC microbiology · 2026Article
- Reclaiming the Microbial Battlefield: Adjuvant Strategies to Overcome Antibiotic Resistance.Microorganisms · 2026Review
- Broth Optical Density-Based Assessment for Phage Therapy: Turbidity Reduction, Antibacterial Virulence, and Time-Kill.Viruses · 2026Review
- Comprehensive investigation of a novel and safe lytic phage vB_AroA_KFSA9 as a commercial candidate for biocontrol ofCurrent research in food science · 2026Article
- Isolation and identification of Klebsiella pneumoniae phage ΦK2046: optimizing its antibacterial potential in combination with chlorhexidine.Antimicrobial resistance and infection control · 2025Article
- Isolation, characterization and therapeutic efficacy of lytic bacteriophage ZK22 against Salmonella Typhimurium in mice.BMC microbiology · 2025Article
- Chitosan nano-formulation enhances stability and bactericidal activity of the lytic phage HK6.BMC biotechnology · 2025Article
- Plumbagin enhances antimicrobial and anti-biofilm capacities of chlorhexidine against clinicalMicrobiology spectrum · 2024Article
- Quorum sensing gene lasR promotes phage vB_Pae_PLY infection in Pseudomonas aeruginosa.BMC microbiology · 2024Article
- Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChlorhexidine (CHG) is a disinfectant commonly used in hospitals. However, it has been reported that the excessive use of CHG can cause resistance in bacteria to this agent and even to other clinical antibiotics. Therefore, new methods are needed to alleviate the development of CHG tolerance and reduce its dosage. This study aimed to explore the synergistic effects of CHG in combination with bacteriophage against CHG-tolerant Pseudomonas aeruginosa (P. aeruginosa) and provide ideas for optimizing disinfection strategies in clinical environments as well as for the efficient use of disinfectants.
methodsThe CHG-tolerant P. aeruginosa strains were isolated from the First Affiliated Hospital of Wenzhou Medical University in China. The bacteriophage vB3530 was isolated from the sewage inlet of the hospital, and its genome was sequenced. Time-killing curve was used to determine the antibacterial effects of vB3530 and chlorohexidine gluconate (CHG). The phage sensitivity to 16 CHG-tolerant P. aeruginosa strains and PAO1 strain was detected using plaque assay. The emergence rate of resistant bacterial strains was detected to determine the development of phage-resistant and CHG-tolerant strains. Finally, the disinfection effects of the disinfectant and phage combination on the surface of the medical devices were preliminarily evaluated.
resultsThe results showed that (1) CHG combined with bacteriophage vB3530 significantly inhibited the growth of CHG-resistant P. aeruginosa and reduced the bacterial colony forming units (CFUs) after 24 h. (2) The combination of CHG and bacteriophage inhibited the emergence of phage-resistant and CHG-tolerant strains. (3) The combination of CHG and bacteriophage significantly reduced the bacterial load on the surface of medical devices.
conclusionsIn this study, the combination of bacteriophage vB3530 and CHG presented a combined inactivation effect to CHG-tolerant P. aeruginosa and reduced the emergence of strains resistant to CHG and phage. This study demonstrated the potential of bacteriophage as adjuvants to traditional disinfectants. The use of bacteriophage in combination with commercial disinfectants might be a promising method for controlling the spread of bacteria in hospitals.
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