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Title of Journal: Curr Microbiol

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Abbravation: Current Microbiology

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Springer US

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ISSN

1432-0991

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Qualitative and Semiquantitative Analysis of Fecal

Authors: Fang Wang Guohong Huang Da Cai Danlei Li Xiaolin Liang Ting Yu Peihong Shen Haiyan Su Jidong Liu Hongcang Gu Mouming Zhao Quanyang Li
Publish Date: 2015/03/25
Volume: 71, Issue: 1, Pages: 143-149
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Abstract

Centenarians constitute a significant subpopulation in the Bama County of Guangxi province in China The beneficial effects of intestinal microbiota especially bifidobacteria of centenarians have been widely accepted however knowledge about Bifidobacterium species in centenarians is not adequate The aim of this study was to investigate the quantity and prevalence of fecal Bifidobacterium in healthy longevous individuals Fecal samples from eight centenarians from Bama aged 100 to 108 years eight younger elderlies from Bama aged 80 to 99 years and eight younger elderlies from Nanning aged 80 to 99 years were analyzed using denaturing gradient gel electrophoresis speciesspecific clone library and quantitative polymerase chain reaction technology qPCR A total of eight different Bifidobacterium species were detected B dentium B longum B thermophilum B pseudocatenulatum/B catenulatum and B adolescentis were common in fecal of centenarians and young elderly B minimum B saecularmay/B pullorum/B gallinarum and B mongoliense were found in centenarians but were absent in the younger elderlies In addition Bifidobacterium species found in centenarians were different from those found in Bama young elderly and Nanning young elderly and the principal differences were the significant increase in the population of B longum P  005 and B dentium P  005 and the reduction in the frequency of B adolescentis P  005 respectively Centenarians tend to have more complex fecal Bifidobacterium species than young elderlies from different regionsThe present work was supported by the grants from the National Natural Science Foundation of China No 31371762 the “Bagui Scholars Distinguished Professor” Special Project and Innovation Project of Guangxi Graduate Education NoYCBZ2014019 We thank Dr Bo Wu Guangxi University and Dr Peihong Shen Guangxi University for providing the experiment guidance for denaturing gradient gel electrophoresis DGGE We have no conflicts of interest to declare

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