Case Study on Shifts in Human Skin Microbiome During Antarctica Expeditions

Area of Science:

• Microbiology
• Human Health
• Environmental Science

Background:

• The human skin microbiome is vital for skin health, acting as a barrier and regulating immunity.
• Understanding skin microbial dynamics is crucial for health management, especially in extreme environments.

Purpose of the Study:

• To investigate skin microbiome changes in healthy males during Antarctic expeditions.
• To analyze microbial reversion to pre-expedition states.
• To explore the influence of environmental and lifestyle factors on the skin microbiome.

Main Methods:

• Case study of two healthy Korean males in their 20s during Antarctic expeditions.
• Analysis of microbial alterations, including changes in bacterial phyla (e.g., Pseudomonadota, Actinomycetota).
• Correlation analyses linking microbial shifts with environmental (temperature, humidity) and lifestyle factors (sunblock use, outdoor activity).

Main Results:

• Significant microbial alterations observed, including increased Pseudomonadota and decreased Actinomycetota.
• Incomplete recovery of the skin microbiome to pre-expedition states post-expedition.
• Host A demonstrated a higher resilience index, indicating faster microbial recovery.
• Microbial changes correlated with environmental factors (temperature, humidity, pressure) and lifestyle choices.

Conclusions:

• The skin microbiome exhibits adaptability and resilience under extreme Antarctic conditions.
• Environmental and lifestyle factors significantly interact with skin microbiome dynamics.
• Findings suggest implications for health management and skincare strategies during prolonged, isolated expeditions.