title: Chemical constituents of Morinda citrifolia roots exhibit hypoglycemic effects in streptozotocin-induced diabetic mice.
abstract: The hypoglycemic effects of the chemical constituents of Morinda citrifolia roots was evaluated in streptozotocin (STZ)-induced diabetic mice. The CHCl3, EtOAc, n-BuOH and H2O soluble phases of the MeOH extract of M. citrifolia roots were administrated orally to STZ-induced diabetic mice. Only the n-BuOH soluble phase showed a significant reduction of the blood glucose levels. From the biologically active n-BuOH soluble phase, two iridoids and three anthraquinones were isolated as main constituents. These compounds were identified by spectroscopic analysis to be deacetylasperulosidic acid (1), asperulosidic acid (2), damnacanthol-3-O-beta-D-primeveroside (3), lucidin 3-O-beta-D-primeveroside (4) and morindone-6-O-beta-D-primeveroside (5). 3 and 4 exhibited the hypoglycemic effects, which were anthraquinones with no substituents in one aromatic ring.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kobe Gakuin University, 1-1-3 Minatojima, Chuo-ku, Kobe 650-8586, Japan. kamiya@pharm.kobegakuin.ac.jp
authors.forename: Kohei
authors.initials: K
authors.lastname: Kamiya
authors.forename: Wakako
authors.initials: W
authors.lastname: Hamabe
authors.forename: Sachiko
authors.initials: S
authors.lastname: Harada
authors.forename: Rie
authors.initials: R
authors.lastname: Murakami
authors.forename: Shogo
authors.initials: S
authors.lastname: Tokuyama
authors.forename: Toshiko
authors.initials: T
authors.lastname: Satake
mesh_terms: D000818:Animals; D001786:Blood Glucose / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D003921:Diabetes Mellitus, Experimental / Q000097:blood / Q000188:drug therapy*; D004305:Dose-Response Relationship, Drug; D007004:Hypoglycemic Agents / Q000737:chemistry / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D032066:Morinda / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D018517:Plant Roots / Q000737:chemistry
chemical_list: D001786:Blood Glucose; D007004:Hypoglycemic Agents; D010936:Plant Extracts