Unknown

Dataset Information

0

Small intestinal microbial dysbiosis underlies symptoms associated with functional gastrointestinal disorders.


ABSTRACT: Small intestinal bacterial overgrowth (SIBO) has been implicated in symptoms associated with functional gastrointestinal disorders (FGIDs), though mechanisms remain poorly defined and treatment involves non-specific antibiotics. Here we show that SIBO based on duodenal aspirate culture reflects an overgrowth of anaerobes, does not correspond with patient symptoms, and may be a result of dietary preferences. Small intestinal microbial composition, on the other hand, is significantly altered in symptomatic patients and does not correspond with aspirate culture results. In a pilot interventional study we found that switching from a high fiber diet to a low fiber, high simple sugar diet triggered FGID-related symptoms and decreased small intestinal microbial diversity while increasing small intestinal permeability. Our findings demonstrate that characterizing small intestinal microbiomes in patients with gastrointestinal symptoms may allow a more targeted antibacterial or a diet-based approach to treatment.

SUBMITTER: Saffouri GB 

PROVIDER: S-EPMC6494866 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

altmetric image

Publications


Small intestinal bacterial overgrowth (SIBO) has been implicated in symptoms associated with functional gastrointestinal disorders (FGIDs), though mechanisms remain poorly defined and treatment involves non-specific antibiotics. Here we show that SIBO based on duodenal aspirate culture reflects an overgrowth of anaerobes, does not correspond with patient symptoms, and may be a result of dietary preferences. Small intestinal microbial composition, on the other hand, is significantly altered in sy  ...[more]

Similar Datasets

2019-03-14 | GSE128189 | GEO
2019-04-30 | MTBLS876 | MetaboLights
| PRJNA526695 | ENA
| PRJEB31438 | ENA
| S-EPMC6629246 | biostudies-literature
| S-EPMC5744949 | biostudies-literature
| S-EPMC5392495 | biostudies-literature
| S-EPMC11355646 | biostudies-literature
| S-EPMC5478647 | biostudies-other
| S-EPMC5859311 | biostudies-literature