A range of variation in percent of oxygen saturation of arterial hemoglobin (SaO2) among healthy individuals at a given high altitude indicates differences in physiological hypoxemia despite uniform ambient hypoxic stress. In populations native to the Tibetan plateau, a significant portion of the va
Major gene for percent of oxygen saturation of arterial hemoglobin in Tibetan highlanders
✍ Scribed by Cynthia M. Beall; John Blangero; Sarah Williams-Blangero; Melvyn C. Goldstein
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 450 KB
- Volume
- 95
- Category
- Article
- ISSN
- 0002-9483
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✦ Synopsis
Abstract
This report employs a statistical genetic approach to analyze quantitative oxygen transport variables in a high‐altitude (4,850–5,450 m) native Tibetan population and demonstrates the presence of a major gene influencing % O~2~ saturation of arterial hemoglobin. This result suggests the hypothesis that individuals with the dominant allele for higher % O~2~ saturation have a selective advantage at high altitude. Studies of the biologically distinctive Himalayan and Andean populations have greatly influenced thinking about ongoing human evolution and adaptation; this is the first statistical evidence for a major gene enhancing oxygen transport in a highaltitude native population. © 1994 wiley‐Liss, Inc.
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