title: Studies on lens-aldose-reductase inhibitor in medicinal plants. II. Active constituents of Monochasma savatierii Franch. et Maxim.
abstract: The 70% acetone extract of Monochasma savatierii FRANCH. et MAXIM. showed very strong inhibition of rabbit lens aldose reductase (AR). From the active fraction, five iridoid glucosides along with the two phenolic glycosides, acteoside and dehydroacteoside, have been isolated. Among them, acteoside showed the highest activity, being about 2.5 times more potent than baicalein, a known natural inhibitor of AR (IC50 = 9.8 x 10(-7) M). Demethylmussaenoside and 7-O-acetyl-8-epi-loganic acid, which are iridoid glucosides, had weak inhibitory activity.
authors.forename: H
authors.initials: H
authors.lastname: Kohda
authors.forename: S
authors.initials: S
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Yamaoka
authors.forename: S
authors.initials: S
authors.lastname: Yahara
authors.forename: T
authors.initials: T
authors.lastname: Nohara
authors.forename: T
authors.initials: T
authors.lastname: Tanimoto
authors.forename: A
authors.initials: A
authors.lastname: Tanaka
mesh_terms: D000449:Aldehyde Reductase / Q000037:antagonists & inhibitors*; D000818:Animals; D007564:Japan; D007700:Kinetics; D007908:Lens, Crystalline / Q000201:enzymology*; D010946:Plants, Medicinal / Q000032:analysis*; D011817:Rabbits; D013401:Sugar Alcohol Dehydrogenases / Q000037:antagonists & inhibitors*
chemical_list: D013401:Sugar Alcohol Dehydrogenases; D000449:Aldehyde Reductase