Table 2.

Difference in the composition (percent of total sequences) of fecal bacterial genera isolated from young mice and aged mice

	Composition* (%)
Genus	YM	AM
DQ789121_g (Clostridiales)	1.64 ± 1.95	0.72 ± 1.05
Pseudoflavonifractor	5.92 ± 1.79	7.47 ± 8.92
EF603943_g (Allobaculum)	4.03 ± 4.16	17.68 ± 3.91*
Bacteroides	12.96 ± 5.48	5.88 ± 3.07
EF603662_g (Clostridiales)	15.36 ± 12.73	5.86 ± 5.30
AB626958_g (Clostridiales)	7.66 ± 6.59	10.49 ± 8.53
Clostridium_g9	2.50 ± 1.52	5.16 ± 0.52*
Oscillibacter	3.60 ± 1.65	5.64 ± 1.59
Helicobacter	1.74 ± 1.11	1.30 ± 1.94
HM124280_g (Bacteroidales)	4.31 ± 2.49	3.40 ± 1.49
Clostridium_g4	0.27 ± 0.31	1.17 ± 0.67
Alistipes	3.59 ± 1.03	2.89 ± 1.25
EF602759_g (Bacteroidales)	2.31 ± 1.05	1.93 ± 0.14
AY239469_g (Bacteroidales)	3.59 ± 0.94	1.85 ± 1.05*
DQ815907_g (Desulfovibrionales)	3.26 ± 1.20	2.23 ± 1.37
Alloprevotella	2.01 ± 1.31	0.94 ± 0.56
EF406806_g (Bacteroidales)	1.30 ± 0.82	1.89 ± 0.54
EF406712_g (Bacteroidales)	2.64 ± 0.58	0.87 ± 0.19*
DQ815556_g (Clostridiales)	0.25 ± 0.10	1.38 ± 0.75*
Lachnospiraceae_uc	1.70 ± 0.52	0.96 ± 0.52
DQ789117_g (Clostridiales)	0.23 ± 0.16	1.69 ± 0.52
Acetatifactor	0.24 ± 0.13	1.44 ± 0.46*
Akkermansia	0.01 ± 0.03	nd
AB626943_g (Clostridiales)	2.25 ± 3.16	0.15 ± 0.19
EU006213_g (Clostridiales)	0.08 ± 0.10	0.46 ± 0.91

All values are indicated as the mean ± standard error of the mean

YM young mice; AM aged mice, nd not detectable

^* p < 0.05 in comparison with young mice