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- Intestinal Lactobacillus community structure and its correlation with diet of Southern Chinese elderly subjects§
- Yuanyuan Pan , Da-Wen Sun , Quanyang Li
- J. Microbiol. 2016;54(9):594-601. Published online August 31, 2016
- DOI: https://doi.org/10.1007/s12275-016-6131-7
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- 8 Crossref
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Abstract
-
This study aimed to investigate the relationship between the
intestinal Lactobacillus species and diet of elderly subjects in
a longevity area in Southern China. Healthy elderly subjects
ranging from 80 to 99 years old were respectively selected
from the regions of Bama and Nanning, Guangxi, China.
The nested polymerase chain reaction and denaturing gradient
gel electrophoresis (PCR-DGGE) technology was used
to analyze the intestinal Lactobacillus community structure.
Results
showed that Weissella confusa, L. mucosae, L. crispatus, L. salivarius, and L. delbrueckii were the representative Lactobacillus of elderly subjects. Among them, L. crispatus and L. delbrueckii were the dominant Lactobacillus of all species. In comparison to Nanning elderly subjects, the detection frequencies of W. confusa and L. salivarius were significantly increased in Bama elderly subjects (P < 0.01), whereas L. mucosae was significantly decreased (P < 0.01). Interestingly, it was also found that there were 4 kinds of representative Lactobacillus, which were significantly correlated with dietary fiber. W. confusa (P < 0.01) and L. salivarius (P < 0.05) were significantly positively correlated with the intake of dietary fiber, while L. mucosae (P < 0.01) and L. crispatus (P < 0.05) were significantly negatively correlated with the intake of dietary fiber, respectively. Results confirmed that different diets had obvious effects on the intestinal Lactobacillus community structure of elderly subjects in Southern China, which may provide a certain theoretical basis for the elderly’s healthy food strategic design and probiotics product development. -
Citations
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Nutrients.2020; 12(12): 3759. CrossRef - Inactivation of Listeria Monocytogenes at various growth temperatures by ultrasound pretreatment and cold plasma
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Research Support, Non-U.S. Gov't
- Correlations of Fecal Bacterial Communities with Age and Living Region for the Elderly Living in Bama, Guangxi, China
- Liang Zhao , Xuewei Qiao , Jun Zhu , Xiaoying Zhang , Jingli Jiang , Yanling Hao , Fazheng Ren
- J. Microbiol. 2011;49(2):186-192. Published online May 3, 2011
- DOI: https://doi.org/10.1007/s12275-011-0405-x
- 35 View
- 0 Download
- 22 Scopus
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Abstract
- Bama County (Guangxi, China) is famous for its longevous population. In this study, intestinal microflora of 17 healthy elderly subjects of different ages and from different regions (rural and urban) in Bama, were analyzed by denaturing gradient gel electrophoresis (DGGE). Significant effects of age and living region on the whole intestinal bacterial communities were observed by redundancy analysis (RDA). A total of 11 bacterial strains that were correlated with age and living region were identified using a t-value biplot combined with band sequencing. Four bacterial strains were correlated with both age and living region of the elderly in Bama. Two Bacteroides strains and one Ruminococcaceae strain were abundant in the rural, younger elderly; conversely, one Desulfovibrio strain was high in the urban, older elderly. Another Bacteroidetes strain was only correlated with the participant’s age, and its abundance increased with the age of the elderly. The richness of one Clostridium sordellii strain, which was only correlated with the elderly living region, was high in the urban elderly. The study also found five other novel bacterial strains that were correlated with the age or living region of the elderly in Bama. These results expand our understanding of age- and region-effects on the intestinal microflora of the elderly and raise the possibility of developing probiotics originating from centenarians.
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