Positron emission tomography (PET) images of a fasted and fed (1 day postfeeding) Burmese python. Positron emission tomography (PET) images of a fasted.

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Positron emission tomography (PET) images of a fasted and fed (1 day postfeeding) Burmese python. Positron emission tomography (PET) images of a fasted and fed (1 day postfeeding) Burmese python. Snakes were injected with 2-[18F]fluoro-2-deoxyglucose prior to scanning. Bright areas signify regions experiencing high rates of glucose metabolism. The difference between the two images is actually greater given that the intensity of the fasted image had to be increased 1000-fold in order to view the entire snake. Stephen M. Secor J Exp Biol 2008;211:3767-3774 © The Company of Biologists Limited 2008