Sweetness and bitterness taste of meals per se does not mediate gastric emptying in humans

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Sweetness and bitterness taste of meals per se does not mediate gastric emptying in humans.

In cell line and animal models, sweet and bitter tastants induce secretion of signaling peptides (e.g., glucagon-like peptide-1 and cholecystokinin) and slow gastric emptying (GE). Whether human GE and appetite responses are regulated by the sweetness or bitterness per se of ingested food is, however, unknown. We aimed to determine whether intragastric infusion of "equisweet" (Study A) or "equi...

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Gastric inhibitory polypeptide does not inhibit gastric emptying in humans.

The insulinotropic gut hormone gastric inhibitory polypeptide (GIP) has been demonstrated to inhibit gastric acid secretion and was proposed to possess "enterogastrone" activity. GIP effects on gastric emptying have not yet been studied. Fifteen healthy male volunteers (23.9 +/- 3.3 yr, body mass index 23.7 +/- 2.3 kg/m(2)) were studied with the intravenous infusion of GIP (2 pmol.kg(-1).min(-1...

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Sleep deprivation per se does not decrease the hypercapnic ventilatory response in humans.

Several studies have found that sleep deprivation reduces the hypercapnic ventilatory response (HCVR). Such results may have been affected by uncontrolled activities or environmental influences during the sleep deprivation period. The current study determined the "pure" effect of sleep deprivation on respiratory control under strictly controlled behavioral and environmental conditions. After 2 ...

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Gastric and duodenal features of meals mediate controls of liquid gastric emptying during fill in rhesus monkeys.

To study the dynamics of liquid gastric emptying in rhesus monkeys under conditions that simulated gastric fill during a meal, we measured the gastric emptying of liquid glucose at various concentrations and volumes when administered intragastrically at rates ranging from 12.5 to 37.5 ml/min. Glucose gastric emptying was faster during than following the period of gastric fill. At a single gluco...

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Fasting does not induce gastric emptying in rats.

PURPOSE To evaluate the effect of fasting on gastric emptying in mice. METHODS Twenty-eight mice were distributed into three study groups: a normal group (N=4): normal standard animals; a total fasting group (N=12): subjected to food and water deprivation and a partial fasting group (N=12): subjected to food deprivation only. The fasting groups were subdivided into three subgroups of four ani...

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ژورنال

عنوان ژورنال: American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

سال: 2009

ISSN: 0363-6119,1522-1490

DOI: 10.1152/ajpregu.00090.2009