title: Pharmacological actions and acute toxicity of methyl- and phenyl-3-methoxy-4-hydroxy styryl ketones.
abstract: Some pharmacological actions and acute toxicity effects of methyl- and phenyl-3-methoxy-4-hydroxy styryl ketones have been described in experimental animals. The compounds antagonised the contractions evoked by a variety of agonists on several smooth muscle preparations in vitro. They produced inhibitory effects on spontaneously contracting uteri from pregnant rats and relaxant effects on pendular movements of rabbit duodenum and on dog intestinal movements in vivo. The compounds inhibited the castor oil induced diarrhoea in rat and propulsion of charcoal test meal in mice. Phenylbutazone showed similar effect on castor oil diarrhoea. The compounds failed to modify gestation period or parturition in pregnant rats. They antagonised bradykinin-induced bronchospasm in guinea pig. The compounds showed no significant effect on cardiovascular and respiratory systems: CNS and general behaviour were not affected even at high doses. Oral LD50 for both the compounds was greater than 2 g/kg.
authors: Discipline of Pharmacology, Regional Research Laboratory, Jammu Tawi, India.
authors: G B
authors: GB
authors: Singh
authors: G D
authors: GD
authors: Leach
authors: C K
authors: CK
authors: Atal
mesh_terms: D000403:Airway Resistance / Q000187:drug effects; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001794:Blood Pressure / Q000187:drug effects; D002415:Cats; D004285:Dogs; D005260:Female; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects; D006439:Hemodynamics / Q000187:drug effects; D066298:In Vitro Techniques; D007422:Intestines / Q000187:drug effects; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D009129:Muscle Tonus / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D011247:Pregnancy; D011817:Rabbits; D051381:Rats; D012098:Reproduction / Q000187:drug effects; D012119:Respiration / Q000187:drug effects; D013343:Styrenes / Q000494:pharmacology* / Q000633:toxicity
chemical_list: D013343:Styrenes; C052935:phenyl-3-methoxy-4-hydroxystyryl ketone; C052933:methyl-3-methoxy-4-hydroxystyryl ketone