Shifts in the Oral Microbiota During a Four-Week Commercial Saturation Dive to 200 Meters.

ABSTRACT: During commercial saturation diving, divers live and work under hyperbaric and hyperoxic conditions. The myriads of bacteria that live in and on the human body must adjust to the resultant hyperbaric stress. In this study, we examined the shifts in bacterial content in the oral cavity of saturation divers, using a metagenomic approach to determine the diversity in the composition of bacterial phyla and genera in saliva from 23 male divers before, during, and immediately after 4 weeks of commercial heliox saturation diving to a working depth of circa 200 m. We found that the bacterial diversity fell during saturation, and there was a change in bacterial composition; with a decrease at the phylum level of obligate anaerobe Fusobacteria, and an increase of the relative abundance of

SUBMITTER: Monnoyer R 

PROVIDER: S-EPMC8110926 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature