PCR-DGGE analysis of cecal microbiota of HLA-B27 transgenic rats.

<p>Samples are labeled with animal number, diet, and oligosaccharide preparation used. Animals on the AIN-76A diet are indicated with A; animals on the rat chow diet are indicated with R. Diets were supplemented with fructo-oligosaccharides (FOS) or with isomalto-oligosaccharides (IMO), or not supplemented with oligosaccharides (control animals). Cecal contents were collected for DNA extraction at the end point of the fibre treatment (16 weeks of age). UPGMA arithmetic algorithm based on Pearson correlation coefficient was used to conduct the dendrogram.