Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Metabolic basis to Sherpa altitude adaptation

James A. Horscroft, Aleksandra Kotwica, Verena Laner, James A. West, P. J. Hennis, Denny Levett, David Howard, Bernadette Fernandez, Sarah L. Burgess-Herbert, Zsuzsanna Ament, Edward T. Gilbert-Kawai, André Vercueil, Blaine Landis, Kay Mitchell, Monty Mythen, Cristina Branco, Randall S. Johnson, Martin Feelisch, Hugh Montgomery, Julian L. Griffin, Michael P. W. Grocott, Erich Gnaiger, Daniel Martín, Andrew J. Murray

Proceedings of the National Academy of Sciences · 2017

Read source ↗ All evidence

Summary

The Himalayan Sherpas, a human population of Tibetan descent, are highly adapted to life in the hypobaric hypoxia of high altitude. Mechanisms involving enhanced tissue oxygen delivery in comparison to Lowlander populations have been postulated to play a role in such adaptation. Whether differences in tissue oxygen utilization (i.e., metabolic adaptation) underpin this adaptation is not known, however. We sought to address this issue, applying parallel molecular, biochemical, physiological, and genetic approaches to the study of Sherpas and native Lowlanders, studied before and during exposure to hypobaric hypoxia on a gradual ascent to Mount Everest Base Camp (5,300 m). Compared with Lowlanders, Sherpas demonstrated a lower capacity for fatty acid oxidation in skeletal muscle biopsies, al

Source type
Peer-reviewed study
DOI
10.1073/pnas.1700527114
Catalogue ID
BFmoakvpzf-qzss01
Pulse AI · ask about this record

Dig deeper with Pulse AI.

Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.