Xingyu JIANG, Xia ZHAO, Lingyun ZOU, et al. Moderate exercise induces shift in the composition of human gut microbiota[J]. Journal of Third Military Medical University, 2017, 39(18): 1824-1831.
DOI:
Xingyu JIANG, Xia ZHAO, Lingyun ZOU, et al. Moderate exercise induces shift in the composition of human gut microbiota[J]. Journal of Third Military Medical University, 2017, 39(18): 1824-1831. DOI: 10.16016/j.1000-5404.201703049.
Moderate exercise induces shift in the composition of human gut microbiota
To investigate effects of moderate exercise on human health from the perspective of gut microbiota.
Methods
2
Totally 40 volunteers were recruited
and assigned into the exercise group (
n
=20) and the sedentary group (
n
=20) according their life styles. The feces were collected and total fecal DNA was extracted
and then all the microorganisms in the intestinal tract of volunteers were detected and analyzed by using the 16S rDNA-based high throughput sequencing for operational taxonomic units (OTUs) clustering. Species classification analysis was performed according to the sequencing data in order to obtain the corresponding species information and abundance distribution.
Results
2
A total of 61 888 OTUs were obtained from the high throughput sequencing data through OTUs analysis
of which 61 149 OTUs were annotated. The principal co-ordinates analysis (PCoA) indicated that significant differences were observed between the 2 groups. The abundances of
Lachnospiraceae
and
Bacteroidaceae
were significantly higher (
P
=2.5627×10
-7
P
=0.000 178 4)
while those of Prevotellaceae and Veillonellaceae were obviously lower in the moderate exercise group than the sedentary group (
P
=0.000 003 46
P
=0.000 017 41). The abundances of 3 culturable strains (
Ruminococcus
_
sp
.5_1_39
BFAA
Bifidobacterium
_
adolescentis
and butyrate salt producing bacteria
Anaerostipes
_
hadrus
) were significantly increased in the exercise group. The obviously increased bacteria
including Bacteroides
Bifidobacterium
_
adolescentis
of
Bifidobacterium
and
Anaerostipes
_
hadrus
could produce lots of short-chain fatty acids (SCFA)
which were important for the maintenance of dynamic balance of intestinal mucosal immune system.
Conclusion
2
Exercise may have a positive effect on the human body through changes in intestinal flora composition and its interaction with the intestinal mucosal system.
关键词
Keywords
references
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