title: Effects of DA-9701, a novel prokinetic agent, on gastric accommodation in conscious dogs.
abstract: OBJECTIVE
  DA-9701, a novel prokinetic agent formulated with Pharbitis Semen and Corydalis Tuber, has strong prokinetic effects, and enhances gastric compliance in conscious dogs. In this study, the effects of DA-9701 on gastric accommodation were studied in conscious dogs.
  
  
  METHODS
  Beagle dogs with an implanted gastric cannula in the stomach were used in this study. After an overnight fast, the dogs received DA-9701 orally, or served as a positive control that received sumatriptan or a negative control before ingestion of a meal. The basal and postprandial gastric volumes were monitored at a constant operating pressure using an electronic barostat. To investigate the long-lasting effects on increased postprandial gastric volume, the area under the volume versus time curve (AUC) was calculated.
  
  
  RESULTS
  DA-9701 significantly increased the basal gastric volume compared to the negative controls (P < 0.05); the effects were comparable to sumatriptan. DA-9701 and sumatriptan significantly increased gastric accommodation compared to the negative control (P < 0.05). In the negative control, the gastric volume reached the maximal volume 40 min after the meal, and then gradually decreased. However, with DA-9701, the increased gastric volume remained significantly elevated for 60 min postprandially (P < 0.05). DA-9701 significantly increased the value of AUC compared to the negative control; this was observed during both the early and late postprandial phases (P < 0.05).
  
  
  CONCLUSIONS
  A novel prokinetic agent, DA-9701, improved gastric accommodation by increasing the postprandial gastric volume; these effects persisted for 60 min after a meal.
authors.affiliation: Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Eun Ran
authors.initials: ER
authors.lastname: Kim
authors.forename: Byung-Hoon
authors.initials: BH
authors.lastname: Min
authors.forename: Sung Ok
authors.initials: SO
authors.lastname: Lee
authors.forename: Tae Ho
authors.initials: TH
authors.lastname: Lee
authors.forename: Miwon
authors.initials: M
authors.lastname: Son
authors.forename: Poong-Lyul
authors.initials: PL
authors.lastname: Rhee
mesh_terms: D000222:Adaptation, Physiological / Q000187:drug effects*; D000704:Analysis of Variance; D000818:Animals; D019540:Area Under Curve; D004285:Dogs; D005260:Female; D009929:Organ Size / Q000187:drug effects; D028321:Plant Preparations / Q000494:pharmacology*; D019518:Postprandial Period; D058825:Serotonin 5-HT1 Receptor Agonists / Q000494:pharmacology; D013270:Stomach / Q000033:anatomy & histology* / Q000187:drug effects* / Q000502:physiology; D018170:Sumatriptan / Q000494:pharmacology; D013997:Time Factors
chemical_list: C533973:DA-9701; D028321:Plant Preparations; D058825:Serotonin 5-HT1 Receptor Agonists; D018170:Sumatriptan