ORCID

Abstract

Significance A relative fall in tissue oxygen levels (hypoxia) is a common feature of many human diseases, including heart failure, lung diseases, anemia, and many cancers, and can compromise normal cellular function. Hypoxia also occurs in healthy humans at high altitude due to low barometric pressures. Human populations resident at high altitude in the Himalayas have evolved mechanisms that allow them to survive and perform, including adaptations that preserve oxygen delivery to the tissues. Here, we studied one such population, the Sherpas, and found metabolic adaptations, underpinned by genetic differences, that allow their tissues to use oxygen more efficiently, thereby conserving muscle energy levels at high altitude, and possibly contributing to the superior performance of elite climbing Sherpas at extreme altitudes.

DOI

10.1073/ps.1700527114

Publication Date

2017-06-13

Publication Title

Proceedings of the National Academy of Sciences

Volume

114

Issue

24

ISSN

0027-8424

Organisational Unit

Peninsula Medical School

First Page

6382

Last Page

6387

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