Age-Related Changes in the Composition of Gut Bifidobacterium Species

Bifidobacteria are one of the major components in human microbiota that are suggested to function in maintaining human health. The colonization and cell number of Bifidobacterium species in human intestine vary with ageing. However, sequential changes of Bifidobacterium species ranging from newborns...

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Bibliographic Details
Published in:Current microbiology 2017-08, Vol.74 (8), p.987-995
Main Authors: Kato, Kumiko, Odamaki, Toshitaka, Mitsuyama, Eri, Sugahara, Hirosuke, Xiao, Jin-zhong, Osawa, Ro
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age
Age Factors
Aged
Aged, 80 and over
Aging
Bacteria
Bifidobacterium - classification
Bifidobacterium - isolation & purification
Biomedical and Life Sciences
Biotechnology
Cell number
Child
Child, Preschool
Children
Colon
Colonization
Correlation
Digestive tract
Feces - microbiology
Female
Gastrointestinal Microbiome
Gastrointestinal Tract - microbiology
Geriatrics
Health
Healthy Volunteers
Humans
Infant
Infant, Newborn
Intestinal microflora
Intestine
Japan
Life Sciences
Male
Microbiology
Middle Aged
Neonates
Older people
Oldest old people
Polymerase chain reaction
Primers
Real time
Real-Time Polymerase Chain Reaction
Small intestine
Transition points
Weaning
Young Adult
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Summary:Bifidobacteria are one of the major components in human microbiota that are suggested to function in maintaining human health. The colonization and cell number of Bifidobacterium species in human intestine vary with ageing. However, sequential changes of Bifidobacterium species ranging from newborns to centenarians remain unresolved. Here, we investigated the gut compositional changes of Bifidobacterium species over a wide range of ages. Faecal samples of 441 healthy Japanese subjects between the ages of 0 and 104 years were analysed using real-time PCR with species-specific primers. B. longum group was widely detected from newborns to centenarians, with the highest detection rate. B. breve was detected in approximately 70% of children under 3 years old. B. adolescentis and B. catenulatum groups were predominant after weaning. B. bifidum was detected at almost all ages. The detection rate of B. dentium was higher in the elderly than in other ages. B. animalis ssp. lactis was detected in 11.4% of the subjects and their ages were restricted. B. gallinarum goup was detected in only nine subjects, while B. minimum and B. mongoliense were undetected at any age. The presence of certain Bifidobacterium groups was associated with significantly higher numbers of other Bifidobacterium species/subspecies. Inter-species correlations were found among each species, exception for B. animalis ssp. lactis . These results revealed the patterns and transition points with respect to compositional changes of Bifidobacterium species that occur with ageing, and the findings indicate that there may be symbiotic associations between some of these species in the gut microbiota.
ISSN:0343-8651
1432-0991
DOI:10.1007/s00284-017-1272-4