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Comparative evaluation of DQ-2511, a novel gastroprokinetic agent, with cisapride in ameliorative action on experimentally induced delayed gastric emptying. 1996

S Hatanaka, and K Kawarabayashi, and M Iseri, and K Tsubokura, and K Furuhama, and A Nijima
Exploratory Research Laboratories III, Daiichi Pharmaceutical Co. Ltd, Tokyo, Japan.

We compared the main pharmacological effect of DQ-2511 (3-[[[2-(3,4-dimethoxyphenyl)- ethyl]carbamoyl]methyl]amino-N-methylbenzamide), a novel gastroprokinetic agent, with that of cisapride. Single oral administration of DQ-2511 (3-10 mg kg-1) caused similar significant improvements to delays in gastric emptying of semi-solid meals evoked by cholecystokinin-octapeptide (CCK8: 5 micrograms kg-1, i.v.) in monkeys, to that with cisapride (3 mg kg-1). A 2-week oral treatment of unilaterally vagotomized rats with DQ-2511 (1-10 mg kg-1) lessened delays in gastric emptying, whereas cisapride (0.3-10 mg kg-1) had no effect under the same experimental protocols. In anesthetized rats, bolus intravenous injection of either compound (60 micrograms kg-1) enhanced gastric motility determined by means of strain gauge force transducers. Electrophysiological investigations revealed that bolus injection of DQ-2511 (6-60 micrograms kg-1) depressed the afferent discharge rate of the ventral gastric branch of the vagus nerve, while cisapride showed no effect. These results suggest that the mechanism of ameliorative action of DQ-2511 on delayed gastric emptying may differ from that of cisapride.

UI MeSH Term Description Entries
D008297 Male Males
D009130 Muscle, Smooth Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed) Muscle, Involuntary,Smooth Muscle,Involuntary Muscle,Involuntary Muscles,Muscles, Involuntary,Muscles, Smooth,Smooth Muscles
D009412 Nerve Fibers Slender processes of NEURONS, including the AXONS and their glial envelopes (MYELIN SHEATH). Nerve fibers conduct nerve impulses to and from the CENTRAL NERVOUS SYSTEM. Cerebellar Mossy Fibers,Mossy Fibers, Cerebellar,Cerebellar Mossy Fiber,Mossy Fiber, Cerebellar,Nerve Fiber
D010880 Piperidines A family of hexahydropyridines.
D005260 Female Females
D005746 Gastric Emptying The evacuation of food from the stomach into the duodenum. Emptying, Gastric,Emptyings, Gastric,Gastric Emptyings
D005769 Gastrointestinal Motility The motor activity of the GASTROINTESTINAL TRACT. Intestinal Motility,Gastrointestinal Motilities,Intestinal Motilities,Motilities, Gastrointestinal,Motilities, Intestinal,Motility, Gastrointestinal,Motility, Intestinal
D000344 Afferent Pathways Nerve structures through which impulses are conducted from a peripheral part toward a nerve center. Afferent Pathway,Pathway, Afferent,Pathways, Afferent
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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