Titlebook: Hypoxia and the Circulation; Robert C. Roach (Research Director),Peter D. Wagne Conference proceedings 2007 The Editor(s) (if applicable)

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custody

https://doi.org/10.1007/978-3-662-32579-7tical parameters influencing the pattern are 1) the partial pressure of oxygen in the surrounding atmosphere, and 2) the rate of oxygen use i.e. the aerobic metabolic rate. Insects exhibit the DGC when the tracheal system is capable of delivering oxygen during the open phase at a rate faster than it

PANEL

https://doi.org/10.1007/978-3-531-92207-2ote increased diffusive oxygen delivery. Using real time x-ray synchrotron phase-contrast analysis, we have found that larger/older grasshoppers also have a greater proportional volume of abdominal tracheae and air sacs per body mass than smaller/younger grasshoppers to enhance convective oxygen del

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https://doi.org/10.1007/978-3-662-32578-0and elevated oxidative enzyme activities. These changes correlate with constitutively activated AMP-activated protein kinase in the HIF-1α null muscles. Additionally, HIF-1α null muscles have decreased expression of pyruvate dehydrogenase kinase I, a HIF-1α target that inhibits oxidative metabolism.