Summary of project PR000372

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000372. The data can be accessed directly via it's Project DOI: 10.21228/M8ZP5C This work is supported by NIH grant, U2C- DK119886.


Project ID: PR000372
Project DOI:doi: 10.21228/M8ZP5C
Project Title:Metabolomic profiles along the gastrointestinal tract of the healthy dog
Project Summary:Introduction: The fecal microbiome is relevant to the health and disease of many species. The importance of the fecal metabolome has more recently been appreciated, but our knowledge of the microbiome and metabolome at other sites along the gastrointestinal tract remains deficient. Objective: To analyze the gastrointestinal microbiome and metabolome of healthy domestic dogs at four anatomical sites. Methods: Samples of the duodenal, ileal, colonic, and rectal contents were collected from six adult dogs after humane euthanasia for an unrelated study. The microbiota were characterized using Illumina sequencing of 16S rRNA genes. The metabolome was characterized by mass spectrometry-based methods. Results: Prevalent phyla throughout the samples were Proteobacteria, Firmicutes, Fusobacteria, and Bacteroidetes, consistent with previous findings in dogs and other species. A total of 530 unique metabolites were detected; 199 of these were identified as previously named compounds, but 141 of them had at least one significantly different site-pair comparison. Noteworthy examples include amino acids, which decreased from the small to large intestine; pyruvate, which was at peak concentrations in the ileum; and several phenol-containing carboxylic acid compounds that increased in the large intestine. Conclusion: The microbiome and metabolome vary significantly at different sites along the canine gastrointestinal tract.
Institute:Texas A&M University
Department:Department of Small Animal Clinical Sciences
Laboratory:Gastrointestinal Laboratory
Last Name:Steiner
First Name:Jorg
Address:College Station, TX 77843-4474

Summary of all studies in project PR000372

Study IDStudy TitleSpeciesInstituteAnalysis
(* : Contains Untargted data)
(* : Contains raw data)
ST000495 Metabolomic profiles along the gastrointestinal tract of the healthy dog Canis lupus familiaris University of California, Davis MS 2016-12-22 1 24 Uploaded data (253M)*