Red Cell Metabolic Changes in Acute and Chronic Exposure to High Altitude
The red blood cell has occupied a central position in studies of how man adapts to high altitudes. With the discovery that the level of DPG has important implications for erythrocyte oxygen affinity, the study of red cell metabolism at high altitudes has taken on new and greater significance. Change in the level of DPG is most certainly related to changes in the levels of other red cell glycolytic intermediates. The appropriate next steps in understanding the mechanism of the increase in DPG are to ascertain which of the enzymes of glycolysis are activated by altitude exposure, and to identify the stimuli which are operating on this enzyme or enzymes. We initiated this next step with studies in Leadville, Colorado, elevation 10,200 feet.
KeywordsHigh Altitude Hexokinase Activation Chronic Group Acute Group Altitude Exposure
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