dc.contributor.author	Odamaki, Toshitaka
dc.contributor.author	Bottacini, Francesca
dc.contributor.author	Mitsuyama, Eri
dc.contributor.author	Yoshida, Keisuke
dc.contributor.author	Kato, Kumiko
dc.contributor.author	Xiao, Jin-zhong
dc.contributor.author	van Sinderen, Douwe
dc.contributor.funder	Morinaga Milk Industry Co. Ltd	en
dc.contributor.funder	Science Foundation Ireland	en
dc.contributor.funder	Federation of European Microbiological Societies	en
dc.date.accessioned	2019-11-19T10:14:01Z
dc.date.available	2019-11-19T10:14:01Z
dc.date.issued	2019-03-13
dc.description.abstract	Sharing of Bifidobacterium longum strains had recently been shown to occur among Japanese family members, a phenomenon that is not confined to mother-infant pairs. In the current study, we investigated if bathtub water is a possible vehicle for the exchange of strains as a consequence of a Japanese custom to share bathtub water by family members during bathing practices. A total of twenty-one subjects from five Japanese families, each consisting of parents with either 2 or 3 children, were enrolled in this study and the fecal microbiota of all participants was determined. Viable bifidobacterial strains were isolated from all bathtub water samples. A subsequent comparative genome analysis using ninety-eight strains indicated that certain strain-sets, which were isolated from feces and bathtub water, share near identical genome sequences, including CRISPR/Cas protospacers. By means of unweighted UniFrac distance analysis based on 16S rRNA gene analysis of 59 subjects from sixteen Japanese families, we showed that the fecal microbiota composition among family members that share bathtub water is significantly closer than that between family members that do not engage in this practice. Our results indicate that bathtub water represents a vehicle for the transmission of gut bacteria, and that the Japanese custom of sharing bathtub water contributes to the exchange of gut microbes, in particular bifidobacteria, among family members.	en
dc.description.sponsorship	FEMS-RG-2016-0103; 17/IFB/5429	en
dc.description.status	Peer reviewed	en
dc.description.version	Published Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.articleid	4380	en
dc.identifier.citation	Odamaki, T., Bottacini, F., Mitsuyama, E., Yoshida, K., Kato, K., Xiao, J.Z. and van Sinderen, D., 2019. Impact of a bathing tradition on shared gut microbe among Japanese families. Scientific reports, 9(1), (4380). DOI:10.1038/s41598-019-40938-3	en
dc.identifier.doi	10.1038/s41598-019-40938-3	en
dc.identifier.eissn	2045-2322
dc.identifier.endpage	8	en
dc.identifier.issued	1	en
dc.identifier.journaltitle	Scientific Reports	en
dc.identifier.startpage	1	en
dc.identifier.uri	https://hdl.handle.net/10468/9046
dc.identifier.volume	9	en
dc.language.iso	en	en
dc.publisher	Springer Nature Ltd	en
dc.relation.project	info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2273/IE/Alimentary Pharmabiotic Centre (APC) - Interfacing Food & Medicine/	en
dc.relation.uri	https://www.nature.com/articles/s41598-019-40938-3
dc.rights	© The Author(s) 2019	en
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	en
dc.subject	Bifidobacterium longum	en
dc.subject	Japanese family members	en
dc.subject	Bathtub water	en
dc.subject	Exchange of strains	en
dc.subject	Shared gut microbe	en
dc.title	Impact of a bathing tradition on shared gut microbe among Japanese families	en
dc.type	Article (peer-reviewed)	en

Impact of a bathing tradition on shared gut microbe among Japanese families

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