Comparison of oral microbiome profiles in stimulated and unstimulated saliva, tongue, and mouth-rinsed water.

Abstract:

:Epidemiological studies using saliva have revealed relationships between the oral microbiome and many oral and systemic diseases. However, when collecting from a large number of participants such as a large-scale cohort study, the time it takes to collect saliva can be a problem. Mouth-rinsed water, which is water that has been used to rinse the oral cavity, can be used as an alternative method for collecting saliva for oral microbiome analysis because it can be collected in a shorter time than saliva. The purpose of this study was to verify whether mouth-rinsed water is a suitable saliva substitute for analyzing the oral microbiome. We collected samples of mouth-rinsed water, stimulated saliva, unstimulated saliva, and tongue coating from 10 systemic healthy participants, and compared the microbial diversity and composition of the samples using next-generation sequencing of 16S rRNA-encoding genes. The results showed that the microbial diversity of mouth-rinsed water was similar to that of unstimulated and stimulated saliva, and significantly higher than that of tongue-coating samples. The microbial composition at the species level of mouth-rinsed water also showed a very high correlation with the composition of unstimulated and stimulated saliva. These results suggest that the mouth-rinsed water is a suitable collection method instead of saliva for oral microbiome analysis.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Jo R,Nishimoto Y,Umezawa K,Yama K,Aita Y,Ichiba Y,Murakami S,Kakizawa Y,Kumagai T,Yamada T,Fukuda S

doi

10.1038/s41598-019-52445-6

subject

Has Abstract

pub_date

2019-11-06 00:00:00

pages

16124

issue

1

issn

2045-2322

pii

10.1038/s41598-019-52445-6

journal_volume

9

pub_type

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