PYY and Hyperglycemia: Acute administration of the somatostatin analog Octreotide to patients after RYGB surgery to suppress anorexigenic gut hormones GLP‐1 and PYY (with co‐administration of insulin to avoid hyperglycemia) had no effect on BGU (fed vs. fasted) in sub‐callosal gyrus, hypothalamus, insula, precuneus, cuneus, posterior cingulate cortex, dorsolateral prefrontal cortex, orbitofrontal cortex, frontal operculum, angular gurus, parietal lobule, superior temporal gyrus, middle temporal gyrus, occipital lobe, and lingual gyrus.38