title: A diterpenoid from Salvia cinnabarina inhibits mouse intestinal motility in vivo.
abstract: This study was aimed to investigate the effect of 3,4 secoisopimara-4(18),7,15-trien-3-oic acid (compound 1) isolated from the aerial parts of Salvia cinnabarina, on upper gastrointestinal transit in mice in vivo. Compound 1 (10 - 100 mg/kg, i. p.) dose-dependently delayed gastrointestinal motility. Pretreatment ( i. p.) of mice with hexamethonium (10 mg/kg), naloxone (2 mg/kg), N(G)-nitro- L-arginine-methyl ester ( L-NAME) (25 mg/kg) or yohimbine (1 mg/kg) did not modify the inhibitory effect of compound 1 (50 mg/kg). However, the L-type Ca (2+) channel verapamil (5 mg/kg, i. p.) significantly reduced the antimotility effect of compound 1 (50 mg/kg). These results suggest that compound 1 inhibits gastrointestinal motility in mice. The effect could involve, at least in part, L-type Ca (2+) channels.
authors.affiliation: Department of Experimental Pharmacology, University of Naples "Federico II", via D. Montesano 49, 80131 Naples, Italy.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Capasso
authors.forename: Angelo A
authors.initials: AA
authors.lastname: Izzo
authors.forename: Francesco
authors.initials: F
authors.lastname: Capasso
authors.forename: Giovanni
authors.initials: G
authors.lastname: Romussi
authors.forename: Angela
authors.initials: A
authors.lastname: Bisio
authors.forename: Nicola
authors.initials: N
authors.lastname: Mascolo
mesh_terms: D000818:Animals; D000930:Antidiarrheals / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D004224:Diterpenes / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D005769:Gastrointestinal Motility / Q000187:drug effects*; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D008517:Phytotherapy; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D027544:Salvia
chemical_list: D000930:Antidiarrheals; D004224:Diterpenes; D010936:Plant Extracts