TABLE 2.

Phylogenetic analysis of the gut microbiota upon prebiotic administration using MITChip

		Abundance (percent of total sequences)
Phylum	Bacterial group	Ob-CT	Ob-Pre	Change (%)*
Mollicutes	Acholeplasma	0.073 ± 0.008	0.049 ± 0.009	−33.6
Verrucomicrobia	A. muciniphila	0.001 ± 0.0	0.089 ± 0.031	8,003.7
Firmicutes	Allobaculum	0.221 ± 0.045	0.103 ± 0.009	−53.3
Firmicutes	Anaerotruncus	1.666 ± 0.199	0.984 ± 0.038	−40.9
Firmicutes	Anaerovorax	0.048 ± 0.007	0.027 ± 0.002	−44.8
Proteobacteria	Bilophila	0.019 ± 0.002	0.011 ± 0.002	−42.2
Firmicutes	Catenibacterium	0.440 ± 0.056	0.316 ± 0.018	−28.2
Firmicutes	C. lactatifermentans	0.175 ± 0.011	0.117 ± 0.009	−32.9
Firmicutes	Clostridium perfringens	0.393 ± 0.021	0.507 ± 0.024	28.9
Actinobacteria	Collinsella	0.009 ± 0.001	0.007 ± 0.0003	−18.9
Proteobacteria	Desulfovibrio	0.066 ± 0.009	0.033 ± 0.009	−49.8
Firmicutes	Eubacterium plexicaudatum	3.030 ± 0.307	2.308 ± 0.149	−23.8
Firmicutes	Lachnospira pectinoschiza	0.788 ± 0.057	0.589 ± 0.067	−25.2
Firmicutes	Lactococcus	0.002 ± 0.0005	0.001 ± 0.0001	−46.4
Firmicutes	Peptococcus niger	0.227 ± 0.022	0.453 ± 0.059	99.8
Bacteroidetes	Rikenella	0.735 ± 0.062	0.978 ± 0.037	33
Firmicutes	S. intermedius	0.005 ± 0.001	0.003 ± 0.0003	−39.1
Firmicutes	Turicibacter	0.001 ± 0.0002	0.001 ± 0.0001	−31.1
Bacteroidetes	Uncultured Bacteroidetes	0.003 ± 0.003	0.005 ± 0.0003	63.6
Firmicutes	Unclassified Clostridium cluster I	0.308 ± 0.112	1.030 ± 0.278	234.6
Firmicutes	Unclassified Clostridium cluster II	0.951 ± 0.076	0.679 ± 0.037	−28.5
Firmicutes	Unclassified Clostridium cluster XIVa	14.331 ± 1.161	11.354 ± 0.581	−20.8
Firmicutes	Uncultured Clostridiales	0.458 ± 0.053	0.304 ± 0.021	−33.6

Bacterial groups that were changed significantly are listed. Data are mean ± SEM.

*P < 0.05, as determined by a two-tailed Student t test.