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Effects of the 5-HT3 receptor antagonist ICS 205-930 on fat-delayed gastric emptying and antral motor activity.

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TLDR
The results suggest that the investigated doses of ICS 205-930 have only slight effects on gastric motor activity of healthy young men, with 20 mg reducing the rate of emptying.
Abstract
1. The selective 5-HT3 receptor antagonist, ICS 205-930 (Sandoz), has been reported to have potent effects on gastric smooth muscle in vivo and to enhance gastric emptying in animals and in man. 2. This study investigated the effects of ICS 205-930 on fat-delayed gastric emptying of a semisolid meal and antral motor activity in humans. 3. Twelve healthy men participated in each of three studies in which 10 or 20 mg of ICS 205-930 or placebo were infused i.v. in a random double-blind fashion. Gastric emptying and antral motor activity were studied scintigraphically. 4. Gastric emptying was not altered after 10 mg but slower after 20 mg of ICS 205-930 than after placebo. Emptying after 20 mg of ICS 205-930 was significantly slower than after 10 mg of ICS 205-930. 5. Antral contraction amplitude was slightly lower after 20 mg of ICS 205-930 than after placebo, whereas the effects of 10 mg ICS 205-930 did not differ from those of placebo. 6. The results suggest that the investigated doses of ICS 205-930 have only slight effects on gastric motor activity of healthy young men, with 20 mg reducing the rate of emptying.

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International Union of Basic and Clinical Pharmacology. CX. Classification of Receptors for 5-hydroxytryptamine; Pharmacology and Function

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TL;DR: In this article, a comprehensive account of the classification and function of 5-hydroxytryptamine receptors, including how they are targeted for therapeutic benefit, is provided, where appropriate, the utility of therapeutics targeting these receptors.
References
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Book

Practical Nonparametric Statistics

W. J. Conover
TL;DR: Probability Theory. Statistical Inference. Contingency Tables. Appendix Tables. Answers to Odd-Numbered Exercises and Answers to Answers to Answer Questions as discussed by the authors.
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Identification of serotonin M-receptor subtypes and their specific blockade by a new class of drugs

TL;DR: A new class of drugs that selectively block serotonin M-receptors on peripheral neurones are described, some of which are the most potent of any pharmacological class yet reported.
Journal ArticleDOI

The pharmacology and function of 5-HT3receptors

TL;DR: Recent developments in the pharmacology and function of 5-hydroxytryptamine (5-HT) receptor subtypes are reviewed with particular reference to the 5-HT 3 receptor, which is widely distributed throughout the peripheral nervous system where it mediates many of the excitatory actions of 4-HT.
Journal ArticleDOI

Relation between antral motility and gastric emptying of solids and liquids in humans

TL;DR: These human data are consistent with a role of antral pressure activity in trituration of solid food and arole of the antrum in the subsequent propulsion of solids and liquids from the stomach.
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