title: [The effect of pentagastrin and ornithine-tetragastrin on motor activity of the stomach in skates and scorpion-fish].
abstract: Low doses of pentagastrin (50 mug/kg b. w.) have no physiological effect on motor activity of the stomach in the skate Dasyatis pastinaca. Average doses (100-200 mug/kg) stimulate the activity, whereas high ones (300 mug/kg) inhibit the frequency of stomach contractions, slightly increasing their amplitude. Ornithine tetragastrin in a dose 2000 mug/kg does not affect motor activity of the stomach in skates. In the scorpion-fish Scorpaena porcus, ornithine tetragastrin (1000 and 2000 mug/kg) inhibits motor activity of the stomach.
mesh_terms: D000818:Animals; D005399:Fishes / Q000502:physiology*; D005769:Gastrointestinal Motility / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects*; D009952:Ornithine; D010418:Pentagastrin / Q000031:analogs & derivatives / Q000494:pharmacology*; D013045:Species Specificity; D013270:Stomach / Q000187:drug effects / Q000502:physiology*
chemical_list: D009952:Ornithine; D010418:Pentagastrin
vernacular_title: Vliianie pentagastrina i ornitintetragastrina na motoriku zheludka u skatov i skorpen