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Nathan Goodyear

PLOS ONE: Microbial Dysbiosis in Colorectal Cancer (CRC) Patients - 0 views

journals.plos.org/...article

dybsiosis cancer colon cancer Bacteroidetes Prevotella IL-17

shared by Nathan Goodyear on 26 Feb 15 - No Cached
  • differences in the colon microbiota in individuals with colon cancer versus those with a normal colonoscopy
  • qPCR revealed significant elevation of the Bacteroides/Prevotella population in cancer patients that appeared to be linked with elevated IL17 producing cells in the mucosa of individuals with cancer.
  • Bacteroides genus populations and more specifically those of Bacteroides fragilis, have recently been shown to produce a metalloprotease in colon cancer patients, but not in controls [12] suggesting this species sub population might favor carcinogenesis
  • ...3 more annotations...
  • It is noteworthy that among the many mechanisms that may mediate associations between microbiota and human health [21]–[22], pro-inflammatory and immune cell activation in colon mucosa are of great importance in relation to malignancy
  • B. fragilis has been shown to induce mucosal regulatory T-cell responses in the intestine involving TH17 cell recruitment in experimental models
  • the elevations of Bacteroides in the stool and/or IL17 immunoreactive cells in the normal mucosa appear to be promising sensitive markers
  • Nathan Goodyear on 26 Feb 15
     
    A relationship between dysbiosis and colon cancer appears to be present.  Particularly an increase in Bacteroidetes and Prevotella species were found in those with colon cancer versus those without.  An inflammatory up regulation of IL-17 appears to be involved.  Whether this is a cause or effect is yet to be determined, but the presence of elevated Bacteroidetes species with increased IL17 could be used as sensitive biomarkers.
Nathan Goodyear

Relationship between lactobacilli and opportunistic bacterial pathogens associated with... - 0 views

www.ncbi.nlm.nih.gov/...PMC3336910

dybsiosis lactobacillus vaginitis

shared by Nathan Goodyear on 01 Apr 15 - No Cached
  • Nathan Goodyear on 01 Apr 15
     
    Study suggests that healthy bacteria, in this study lactobacillus, are important in controlling opportunistic bacteria. 
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