Short‐term direct contact with soil and plant materials leads to an immediate increase in diversity of skin microbiota

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Grönroos , M , Parajuli , A , Laitinen , O H , Roslund , M I , Vari , H K , Hyöty , H , Puhakka , R & Sinkkonen , A T 2019 , ' Short‐term direct contact with soil and plant materials leads to an immediate increase in diversity of skin microbiota ' , MicrobiologyOpen , vol. 8 , no. 3 , 645 . https://doi.org/10.1002/mbo3.645

Title: Short‐term direct contact with soil and plant materials leads to an immediate increase in diversity of skin microbiota
Author: Grönroos, Mira; Parajuli, Anirudra; Laitinen, Olli H.; Roslund, Marja Irmeli; Vari, Heli Kristiina; Hyöty, Heikki; Puhakka, Riikka; Sinkkonen, Aki Tapio
Contributor organization: Helsinki Institute of Sustainability Science (HELSUS)
Nature-Based Solutions
Ecosystems and Environment Research Programme
Faculty of Biological and Environmental Sciences
Aki Tapio Sinkkonen / Principal Investigator
Date: 2019-03
Language: eng
Number of pages: 13
Belongs to series: MicrobiologyOpen
ISSN: 2045-8827
DOI: https://doi.org/10.1002/mbo3.645
URI: http://hdl.handle.net/10138/238903
Abstract: Immune-mediated diseases have increased during the last decades in urban environments. The hygiene hypothesis suggests that increased hygiene level and reduced contacts with natural biodiversity are related to the increase in immune-mediated diseases. We tested whether short-time contact with microbiologically diverse nature-based materials immediately change bacterial diversity on human skin. We tested direct skin contact, as two volunteers rubbed their hands with sixteen soil and plant based materials, and an exposure via fabric packets filled with moss material. Skin swabs were taken before and after both exposures. Next-generation sequencing showed that exposures increased, at least temporarily, the total diversity of skin microbiota and the diversity of Acidobacteria, Actinobacteria, Bacteroidetes, Proteobacteria and Alpha-, Beta- and Gammaproteobacteria suggesting that contact with nature-based materials modify skin microbiome and increase skin microbial diversity. Until now, approaches to cure or prevent immune system disorders using microbe-based treatments have been limited to use of a few microbial species. We propose that nature-based materials with high natural diversity, such as the materials tested here, might be more effective in modifying human skin microbiome, and eventually, in reducing immune system disorders. Future studies should investigate how long-term changes in skin microbiota are achieved and if the exposure induces beneficial changes in the immune system markers.
Subject: 1183 Plant biology, microbiology, virology
biodiversity hypothesis
human health
hygiene hypothesis
nature-based materials
GUT MICROBIOTA
RIBOSOMAL-RNA
HYGIENE HYPOTHESIS
ALLERGIC DISEASES
ATOPIC-DERMATITIS
SEQUENCE DATA
AUTOIMMUNE
PROBIOTICS
HEALTH
COMMUNITIES
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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