Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Does hypoxia play a role in the development of sarcopenia in humans? Mechanistic insights from the Caudwell Xtreme Everest Expedition

Liesl Wandrag, Mario Siervo, Heather L. Riley, Maryam Khosravi, Bernadette Fernandez, Carl A. Leckstrom, Daniel Martín, Kay Mitchell, Denny Levett, Hugh Montgomery, Monty Mythen, M Stroud, Michael P. W. Grocott, Martin Feelisch

Redox Biology · 2017

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Summary

OBJECTIVES: Sarcopenia refers to the involuntary loss of skeletal muscle and is a predictor of physical disability/mortality. Its pathogenesis is poorly understood, although roles for altered hypoxic signaling, oxidative stress, adipokines and inflammatory mediators have been suggested. Sarcopenia also occurs upon exposure to the hypoxia of high altitude. Using data from the Caudwell Xtreme Everest expedition we therefore sought to analyze the extent of hypoxia-induced body composition changes and identify putative pathways associated with fat-free mass (FFM) and fat mass (FM) loss. METHODS: After baseline testing in London (75m), 24 investigators ascended from Kathmandu (1300m) to Everest base camp (EBC 5300m) over 13 days. Fourteen investigators climbed above EBC, eight of whom reached t

Source type
Peer-reviewed study
DOI
10.1016/j.redox.2017.05.004
Catalogue ID
BFmokjo2bz-ccu869
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