A Preprandial Rise in Plasma Ghrelin Levels Suggests a Role in Meal Initiation in Humans
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Correlation between integrated 24-h AUC ghrelin values and plasma ghrelin levels measured at either 0930 (r = 0.954, P < 0.0001), during the trough after breakfast (A), or 0600 (r = 0.873, P < 0.0004), during the trough before breakfast after an overnight fast (B).