title: Flavonoids from Acacia pennata and their cyclooxygenase (COX-1 and COX-2) inhibitory activities.
abstract: Two new flavonoids quercetin 4'-O-alpha-L-rhamnopyranosyl-3-O-beta-D-allopyranoside (1) and apigenin 6-C-[2''-O-(E)-feruloyl- beta-D-glucopyranosyl]-8-C-beta-glucopyranoside (2), along with the known isorhamnetin 3-O-alpha-L-rhamnopyranoside (3), kaempferol 3-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranoside (4), and isovitexin (5) were isolated from the leaves of Acacia pennata Willd. (Mimosaceae) and tested for their anti-inflammatory activity. Their structures were determined by 1D and 2D NMR and mass spectrometry. They were tested for an inhibitory effect on COX-1 and COX-2, showing 60-90% inhibition at 10(-4) g/mL and 5-14% inhibition at 10(-4) g/mL, respectively.
authors.affiliation: Faculté de Pharmacie, Laboratoire de Pharmacognosie, Unité de Molécules d'Intérêt Biologique, UMIB, UPRES-EA 3660, Université de Bourgogne, Dijon, France.
authors.forename: Alain B
authors.initials: AB
authors.lastname: Dongmo
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Miyamoto
authors.forename: Kazuko
authors.initials: K
authors.lastname: Yoshikawa
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Arihara
authors.forename: Marie-Aleth
authors.initials: MA
authors.lastname: Lacaille-Dubois
mesh_terms: D000045:Acacia; D051545:Cyclooxygenase 1 / Q000187:drug effects*; D051546:Cyclooxygenase 2 / Q000187:drug effects*; D016861:Cyclooxygenase Inhibitors / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D047309:Flavones / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D006801:Humans; D020128:Inhibitory Concentration 50; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D018515:Plant Leaves