Acute administration of acyl, but not desacyl ghrelin, decreases blood pressure in healthy humans.

ABSTRACT: To compare the effects of acyl ghrelin (AG) and desacyl ghrelin (DAG) on blood pressure (BP), heart rate (HR) and other autonomic parameters in healthy humans and to elucidate the hormonal mechanisms through which AG could exert its cardiovascular effects.Seventeen healthy participants underwent frequent monitoring of systolic (sBP) and diastolic blood pressure (dBP), HR, respiratory rate (RR) and body surface temperature (Temp) during continuous infusion of AG, DAG, combined AG?+?DAG or saline control before and during an IV glucose tolerance test on 4 separate days. Plasma catecholamines, renin and aldosterone levels were also measured. Differences in outcome measures between treatment groups were assessed using mixed-model analysis.Compared to the saline control, AG and combined AG?+?DAG infusions decreased sBP, dBP, mean arterial blood pressure (MAP), HR and Temp. In contrast, DAG infusion did not alter BP, RR or Temp, but did decrease HR. The AG and AG?+?DAG infusions also raised plasma aldosterone levels compared to saline (P?

SUBMITTER: Zhang CJ 

PROVIDER: S-EPMC5325691 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature