Enhancing Bile Tolerance Improves Survival and Persistence of Bifidobacterium and Lactococcus In The Murine Gastrointestinal Tract

Typeset version

 

TY  - JOUR
  - Watson, D, Sleator, RD, Hill, C, Gahan, CGM
  - 2008
  - August
  - BMC Microbiology
  - Enhancing Bile Tolerance Improves Survival and Persistence of Bifidobacterium and Lactococcus In The Murine Gastrointestinal Tract
  - Validated
  - ()
  - 8
  - NA
  - Results: In vitro bile tolerance of both strains was significantly enhanced (P < 0.001), following heterologous expression of the Listeria monocytogenes bile resistance mechanism BilE. Strains harbouring bilE were also recovered at significantly higher levels (P < 0.001), than control strains from the faeces and intestines of mice (n = 5), following oral inoculation. Furthermore, a B. breve strain expressing bilE demonstrated increased efficacy relative to the wild-type strain in reducing oral L. monocytogenes infection in mice.. Conclusion: Collectively the data indicates that bile tolerance can be enhanced in Bifidobacterium and Lactococcus species through rational. Background: The majority of commensal gastrointestinal bacteria used as probiotics are highly adapted to the specialised environment of the large bowel. However, unlike pathogenic bacteria; they are often inadequately equipped to endure the physicochemical stresses of gastrointestinal (GI) delivery in the host. Herein we outline a patho-biotechnology strategy to improve gastric delivery and host adaptation of a probiotic strain Bifidobacterium breve UCC2003 and the generally regarded as safe (GRAS) organism Lactococcus lactis NZ9000..
  - DOI 10.1186/1471-2180-8-176
DA  - 2008/08
ER  - 
@article{V722468,
   = {Watson,  D and  Sleator,  RD and  Hill,  C and  Gahan,  CGM },
   = {2008},
   = {August},
   = {BMC Microbiology},
   = {Enhancing Bile Tolerance Improves Survival and Persistence of Bifidobacterium and Lactococcus In The Murine Gastrointestinal Tract},
   = {Validated},
   = {()},
   = {8},
   = {NA},
   = {{Results: In vitro bile tolerance of both strains was significantly enhanced (P < 0.001), following heterologous expression of the Listeria monocytogenes bile resistance mechanism BilE. Strains harbouring bilE were also recovered at significantly higher levels (P < 0.001), than control strains from the faeces and intestines of mice (n = 5), following oral inoculation. Furthermore, a B. breve strain expressing bilE demonstrated increased efficacy relative to the wild-type strain in reducing oral L. monocytogenes infection in mice.. Conclusion: Collectively the data indicates that bile tolerance can be enhanced in Bifidobacterium and Lactococcus species through rational. Background: The majority of commensal gastrointestinal bacteria used as probiotics are highly adapted to the specialised environment of the large bowel. However, unlike pathogenic bacteria; they are often inadequately equipped to endure the physicochemical stresses of gastrointestinal (GI) delivery in the host. Herein we outline a patho-biotechnology strategy to improve gastric delivery and host adaptation of a probiotic strain Bifidobacterium breve UCC2003 and the generally regarded as safe (GRAS) organism Lactococcus lactis NZ9000..}},
   = {DOI 10.1186/1471-2180-8-176},
  source = {IRIS}
}
AUTHORSWatson, D, Sleator, RD, Hill, C, Gahan, CGM
YEAR2008
MONTHAugust
JOURNAL_CODEBMC Microbiology
TITLEEnhancing Bile Tolerance Improves Survival and Persistence of Bifidobacterium and Lactococcus In The Murine Gastrointestinal Tract
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME8
ISSUENA
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END_PAGE
ABSTRACTResults: In vitro bile tolerance of both strains was significantly enhanced (P < 0.001), following heterologous expression of the Listeria monocytogenes bile resistance mechanism BilE. Strains harbouring bilE were also recovered at significantly higher levels (P < 0.001), than control strains from the faeces and intestines of mice (n = 5), following oral inoculation. Furthermore, a B. breve strain expressing bilE demonstrated increased efficacy relative to the wild-type strain in reducing oral L. monocytogenes infection in mice.. Conclusion: Collectively the data indicates that bile tolerance can be enhanced in Bifidobacterium and Lactococcus species through rational. Background: The majority of commensal gastrointestinal bacteria used as probiotics are highly adapted to the specialised environment of the large bowel. However, unlike pathogenic bacteria; they are often inadequately equipped to endure the physicochemical stresses of gastrointestinal (GI) delivery in the host. Herein we outline a patho-biotechnology strategy to improve gastric delivery and host adaptation of a probiotic strain Bifidobacterium breve UCC2003 and the generally regarded as safe (GRAS) organism Lactococcus lactis NZ9000..
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DOI_LINKDOI 10.1186/1471-2180-8-176
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