Task: Answer Verification
Input (English): Question: Does four-hour infusion of hydrocortisone suppress the nocturnal increase of circulating acyl- or desacyl-ghrelin concentrations in healthy young adults?
Answer: A short-term increase in circulating cortisol concentrations by exogenous hydrocortisone infusion does not suppress circulating nocturnal acyl- or desacyl-ghrelin concentrations. Thus, it is likely that the diurnal pattern of ghrelin secretion is under circadian control and not directly regulated by cortisol.
Output (English): no