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Longitudinal gut microbiota dynamics in Antarctic research mission crews

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Title
Longitudinal gut microbiota dynamics in Antarctic research mission crews
Other Titles
남극기지 대원의 장내미생물의 시간적 변화
Authors
Lee, Min-Jung
Lee, Seung-Hwan
Min, Huitae
Nam, Tae-Wook
Hong, Soon Gyu
Oh, Bumjo
Kim, Joo Hyeong
Kim, Yeon-Ran
Kim, Bong-Soo
Seok, Yeong-Jae
Keywords
gut microbiotaAntarcticaextreme environmentvariabilitycohabitation
Issue Date
2025
Citation
Lee, Min-Jung, et al. 2025. "Longitudinal gut microbiota dynamics in Antarctic research mission crews". FRONTIERS IN MICROBIOLOGY, 16(0): 0-0.
Abstract
Introduction A prolonged stay at Antarctic research stations poses unique challenges due to extreme environmental conditions, restricted diets, and cold temperatures, all of which can influence the gut microbiota, an important factor in host health. However, our understanding of how the Antarctic environment affects the gut microbiota remains limited due to small cohort sizes and short study durations.Methods We analyzed 467 fecal samples collected longitudinally from 48 participants who stayed at Antarctic stations for up to 16 months.Results Before departing to the Antarctic bases, male participants exhibited three distinct types of gut microbiota, which were differentially altered during and after the stay, depending on the pre-existing microbiota type. Prevotella-dominant microbiota was more susceptible to environmental changes, including the diet, compared with Bacteroides-dominant microbiota. Although the dominant genera in the gut microbiota were stable across all microbiota types, minor genera with high variability could mediate changes in the microbiota. Sharing diets and having frequent contact resulted in cohabitation effects among genetically unrelated participants in the extremely isolated Antarctic environment. Although taxonomic composition shifted in response to the Antarctic environment, predicted functions of the gut microbiota remained relatively stable.Discussion This study reveals that long-term residence in Antarctic research stations alters the gut microbiota in ways that depends on the intrinsic microbiota prior to the mission. These findings enhance our understanding of human gut microbiota adaptation under extreme and isolated environmental conditions.
URI
https://repository.kopri.re.kr/handle/201206/16035
DOI
http://dx.doi.org/10.3389/fmicb.2025.1593617
Type
Article
Station
King Sejong Station
Indexed
SCIE
Appears in Collections  
2020 Polar Academic Program (PE20900)
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