Attenuation of quorum sensing controlled virulence of Pseudomonas aeruginosa by cranberry
Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cr...
Ausführliche Beschreibung
Autor*in: |
Kusum Harjai [verfasserIn] Ravi Kumar Gupta [verfasserIn] Himanshi Sehgal [verfasserIn] |
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E-Artikel |
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Englisch |
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2014 |
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Schlagwörter: |
Biofilm - cranberry - P. aeruginosa - quorum sensing - virulence factors |
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Übergeordnetes Werk: |
In: Indian Journal of Medical Research - Wolters Kluwer Medknow Publications, 2005, 139(2014), 3, Seite 446-453 |
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Übergeordnetes Werk: |
volume:139 ; year:2014 ; number:3 ; pages:446-453 |
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DOAJ027765040 |
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520 | |a Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. | ||
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(DE-627)DOAJ027765040 (DE-599)DOAJc946d3f0b1ef4db1a09b2e6a6362e031 DE-627 ger DE-627 rakwb eng Kusum Harjai verfasserin aut Attenuation of quorum sensing controlled virulence of Pseudomonas aeruginosa by cranberry 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. Biofilm - cranberry - P. aeruginosa - quorum sensing - virulence factors Medicine R Ravi Kumar Gupta verfasserin aut Himanshi Sehgal verfasserin aut In Indian Journal of Medical Research Wolters Kluwer Medknow Publications, 2005 139(2014), 3, Seite 446-453 (DE-627)DOAJ000026956 09715916 nnns volume:139 year:2014 number:3 pages:446-453 https://doaj.org/article/c946d3f0b1ef4db1a09b2e6a6362e031 kostenfrei http://www.ijmr.org.in/article.asp?issn=0971-5916;year=2014;volume=139;issue=3;spage=446;epage=453;aulast=Harjai kostenfrei https://doaj.org/toc/0971-5916 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 139 2014 3 446-453 |
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(DE-627)DOAJ027765040 (DE-599)DOAJc946d3f0b1ef4db1a09b2e6a6362e031 DE-627 ger DE-627 rakwb eng Kusum Harjai verfasserin aut Attenuation of quorum sensing controlled virulence of Pseudomonas aeruginosa by cranberry 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. Biofilm - cranberry - P. aeruginosa - quorum sensing - virulence factors Medicine R Ravi Kumar Gupta verfasserin aut Himanshi Sehgal verfasserin aut In Indian Journal of Medical Research Wolters Kluwer Medknow Publications, 2005 139(2014), 3, Seite 446-453 (DE-627)DOAJ000026956 09715916 nnns volume:139 year:2014 number:3 pages:446-453 https://doaj.org/article/c946d3f0b1ef4db1a09b2e6a6362e031 kostenfrei http://www.ijmr.org.in/article.asp?issn=0971-5916;year=2014;volume=139;issue=3;spage=446;epage=453;aulast=Harjai kostenfrei https://doaj.org/toc/0971-5916 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 139 2014 3 446-453 |
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Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. |
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Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. |
abstract_unstemmed |
Background & objectives: Emergence of antimicrobial resistance in Pseudomonas aeruginosa has led to the search for alternative agents for infections control. Natural products have been a good alternative to present antibiotics. The present study was undertaken to evaluate the effectiveness of cranberry in attenuation of virulence of P. aeruginosa in experimental urinary tract infection (UTI) in mouse model. Efforts were also directed to explore the action of cranberry towards virulence of P. aeruginosa through quorum sensing (QS) inhibition. Methods: Efficacy of cranberry was evaluated in an experimental UTI mouse model and on production of QS signals, alginate, pyochelin, haemolysin, phospholipase-C, cell-surface hydrophobicity, uroepithelial cell-adhesion assay and biofilm formation by already standardized methods. Results: Presence of cranberry showed significant decline in the production of QS signals, biofilm formation and virulence factors of P. aeruginosa in vitro (P<0.001). Further, cranberry was found to be useful in prevention of experimental UTI in mouse model as indicated by reduced renal bacterial colonization and kidney tissues destruction. Interpretation & conclusions: The findings of the present study indicated that cranberry inhibited QS and hence elaboration of virulence factors of P. aeruginosa. It also affected the adherence ability of this pathogen. This approach can lead to the discovery of new category of safe anti-bacterial drugs from dietary sources such as cranberry with reduced toxicity without the risk of antibiotic resistance. |
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Attenuation of quorum sensing controlled virulence of Pseudomonas aeruginosa by cranberry |
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https://doaj.org/article/c946d3f0b1ef4db1a09b2e6a6362e031 http://www.ijmr.org.in/article.asp?issn=0971-5916;year=2014;volume=139;issue=3;spage=446;epage=453;aulast=Harjai https://doaj.org/toc/0971-5916 |
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Ravi Kumar Gupta Himanshi Sehgal |
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