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Skin microbiome bacteria enriched following long sun exposure can reduce oxidative damage: a 5-month preliminary study of ten lifeguards.
Research in Microbiology 2023 April 19
BACKGROUND: The skin microbiome is important for skin health and protection against solar damage. Sun exposure can cause long-term harm and increase the risk of skin aging and skin cancer. Here we examined the effects of daily exposure to sun radiation on the skin microbiome in order to determine whether skin microbiome bacteria can contribute to protection from solar damage.
METHODS: Skin swabs were collected from ten lifeguards before and after the summer season to analyze changes in the skin microbiome. The bacteria which were enriched after the summer were chosen for further studies to assess their response to solar radiation and potential effect on skin health.
RESULT: The study indicates that specific skin microbiome bacteria were enriched after seasonal sun exposure. Two of these, Sphingomonas and Erythrobacteraceae, may have the ability to protect against UV radiation as they produce potentially protective compounds. Indeed, further analysis showed that a Sphingomonas spp. was able to reduce reactive oxygen species levels in human keratinocytes.
CONCLUSION: These results suggest that members of the skin microbiome can enhance protection from solar radiation damage and contribute to human health. The findings provide a proof-of-concept for the role of the skin microbiome in promoting skin health.
METHODS: Skin swabs were collected from ten lifeguards before and after the summer season to analyze changes in the skin microbiome. The bacteria which were enriched after the summer were chosen for further studies to assess their response to solar radiation and potential effect on skin health.
RESULT: The study indicates that specific skin microbiome bacteria were enriched after seasonal sun exposure. Two of these, Sphingomonas and Erythrobacteraceae, may have the ability to protect against UV radiation as they produce potentially protective compounds. Indeed, further analysis showed that a Sphingomonas spp. was able to reduce reactive oxygen species levels in human keratinocytes.
CONCLUSION: These results suggest that members of the skin microbiome can enhance protection from solar radiation damage and contribute to human health. The findings provide a proof-of-concept for the role of the skin microbiome in promoting skin health.
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