素食者的唾液菌群有何不同?
创作:szx 审核:szx 2018年04月16日
  • 选取78名素食者及82名杂食者,分析对比唾液菌群的多样性、组成及功能;
  • 在所有门以下的分类学水平上,素食者与杂食者的唾液菌群族组成均显著不同;
  • 包括一些上呼吸道共生菌(例如微黄奈瑟球菌、副流感嗜血杆菌、粘滑罗斯菌)及与牙周疾病相关的细菌(例如直肠弯曲菌、牙髓卟啉单胞菌);
  • 中链脂肪酸、单/多不饱和脂肪酸、膳食纤维的摄入与唾液菌群的细菌多样性、群落结构、某些物种的相对丰度相关。
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mildbreeze
长期饮食模式对唾液菌群有何影响?Scientific Reports[IF:4.259]近期发表的一项研究,对比了素食者和杂食者的唾液菌群,有些有趣的发现。
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Scientific Reports [IF:3.998]

Impact of a vegan diet on the human salivary microbiota

素食对人唾液菌群的影响

10.1038/s41598-018-24207-3

2018-04-11, Article

Abstract & Authors:展开

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Little is known about the effect of long-term diet patterns on the composition and functional potential of the human salivary microbiota. In the present study, we sought to contribute to the ongoing elucidation of dietary effects on the oral microbial community by examining the diversity, composition and functional potential of the salivary microbiota in 160 healthy vegans and omnivores using 16S rRNA gene amplicon sequencing. We further sought to identify bacterial taxa in saliva associated with host inflammatory markers. We show that compositional differences in the salivary microbiota of vegans and omnivores is present at all taxonomic levels below phylum level and includes upper respiratory tract commensals (e.g. Neisseria subflava, Haemophilus parainfluenzae, and Rothia mucilaginosa) and species associated with periodontal disease (e.g. Campylobacter rectus and Porphyromonas endodontalis). Dietary intake of medium chain fatty acids, piscine mono- and polyunsaturated fatty acids, and dietary fibre was associated with bacterial diversity, community structure, as well as relative abundance of several species-level operational taxonomic units. Analysis of imputed genomic potential revealed several metabolic pathways differentially abundant in vegans and omnivores indicating possible effects of macro- and micro-nutrient intake. We also show that certain oral bacteria are associated with the systemic inflammatory state of the host.

First Authors:
Tue H Hansen

Correspondence Authors:
Tue H Hansen

All Authors:
Tue H Hansen,Timo Kern,Emilie G Bak,Alireza Kashani,Kristine H Allin,Trine Nielsen,Torben Hansen,Oluf Pedersen

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