PhyloChip microarray analysis reveals altered gastrointestinal microbial communities in a rat model of colonic hypersensitivity

T. A. Nelson, S. Holmes, A. V. Alekseyenko, M. Shenoy, T. Desantis, C. H. Wu, G. L. Andersen, John Winston, J. Sonnenburg, P. J. Pasricha, A. Spormann

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Background: Irritable bowel syndrome (IBS) is a chronic, episodic gastrointestinal disorder that is prevalent in a significant fraction of western human populations; and changes in the microbiota of the large bowel have been implicated in the pathology of the disease. Methods: Using a novel comprehensive, high-density DNA microarray (PhyloChip) we performed a phylogenetic analysis of the microbial community of the large bowel in a rat model in which intracolonic acetic acid in neonates was used to induce long lasting colonic hypersensitivity and decreased stool water content and frequency, representing the equivalent of human constipation-predominant IBS. Key Results: Our results revealed a significantly increased compositional difference in the microbial communities in rats with neonatal irritation as compared with controls. Even more striking was the dramatic change in the ratio of Firmicutes relative to Bacteroidetes, where neonatally irritated rats were enriched more with Bacteroidetes and also contained a different composition of species within this phylum. Our study also revealed differences at the level of bacterial families and species.Conclusions & Inferences The PhyloChip is a useful and convenient method to study enteric microflora. Further, this rat model system may be a useful experimental platform to study the causes and consequences of changes in microbial community composition associated with IBS.

Original languageEnglish (US)
JournalNeurogastroenterology and Motility
Volume23
Issue number2
DOIs
StatePublished - Feb 2011

Fingerprint

Microarray Analysis
Irritable Bowel Syndrome
Hypersensitivity
Bacteroidetes
Microbiota
Constipation
Oligonucleotide Array Sequence Analysis
Acetic Acid
Pathology
Water
Population

Keywords

  • Enteric microflora
  • Irritable bowel syndrome
  • PhyloChip
  • Visceral hypersensitivity

ASJC Scopus subject areas

  • Endocrine and Autonomic Systems
  • Gastroenterology
  • Physiology

Cite this

PhyloChip microarray analysis reveals altered gastrointestinal microbial communities in a rat model of colonic hypersensitivity. / Nelson, T. A.; Holmes, S.; Alekseyenko, A. V.; Shenoy, M.; Desantis, T.; Wu, C. H.; Andersen, G. L.; Winston, John; Sonnenburg, J.; Pasricha, P. J.; Spormann, A.

In: Neurogastroenterology and Motility, Vol. 23, No. 2, 02.2011.

Research output: Contribution to journalArticle

Nelson, TA, Holmes, S, Alekseyenko, AV, Shenoy, M, Desantis, T, Wu, CH, Andersen, GL, Winston, J, Sonnenburg, J, Pasricha, PJ & Spormann, A 2011, 'PhyloChip microarray analysis reveals altered gastrointestinal microbial communities in a rat model of colonic hypersensitivity', Neurogastroenterology and Motility, vol. 23, no. 2. https://doi.org/10.1111/j.1365-2982.2010.01637.x
Nelson, T. A. ; Holmes, S. ; Alekseyenko, A. V. ; Shenoy, M. ; Desantis, T. ; Wu, C. H. ; Andersen, G. L. ; Winston, John ; Sonnenburg, J. ; Pasricha, P. J. ; Spormann, A. / PhyloChip microarray analysis reveals altered gastrointestinal microbial communities in a rat model of colonic hypersensitivity. In: Neurogastroenterology and Motility. 2011 ; Vol. 23, No. 2.
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