title: Antiproliferative, antioxidant, and antimutagenic activities of flavonoid-enriched extracts from (Tunisian) Rhamnus alaternus L.: combination with the phytochemical composition.
abstract: A pronounced antiproliferative effect on human leukemia K562 cells was shown with flavonoid-enriched extracts from Rhamnus alaternus roots and leaves, with, respectively, IC(50) values of 165 and 210.73 microg/mL. High DPPH radical-scavenging activity (7.21 and 18.84 microg/mL, respectively) and antioxidative effects using the xanthine oxidase assay (IC(50) values of 83.33 and 103.96 microg/mL, respectively) were detected in the presence of the two tested extracts. Although no mutagenic effect was observed when using the Salmonella typhimurium assay system with TA1535 and TA100 strains, the two tested extracts exhibited a high-level protection toward the direct mutagen, sodium azide-induced response.
authors.affiliation: Unité de Pharmacognosie/Biologie Moléculaire 99/UR/07-03, Faculté de Pharmacie, Monastir, Tunisie.
authors.forename: Rebai Ben
authors.initials: RB
authors.lastname: Ammar
authors.forename: Soumaya
authors.initials: S
authors.lastname: Kilani
authors.forename: Ines
authors.initials: I
authors.lastname: Bouhlel
authors.forename: Lobna
authors.initials: L
authors.lastname: Ezzi
authors.forename: Ines
authors.initials: I
authors.lastname: Skandrani
authors.forename: Jihed
authors.initials: J
authors.lastname: Boubaker
authors.forename: Mohamed Ben
authors.initials: MB
authors.lastname: Sghaier
authors.forename: Aicha
authors.initials: A
authors.lastname: Naffeti
authors.forename: Amor
authors.initials: A
authors.lastname: Mahmoud
authors.forename: Leila
authors.initials: L
authors.lastname: Chekir-Ghedira
authors.forename: Kamel
authors.initials: K
authors.lastname: Ghedira
mesh_terms: D000818:Animals; D016587:Antimutagenic Agents / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity; D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity; D049109:Cell Proliferation / Q000187:drug effects*; D004269:DNA, Bacterial / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D005419:Flavonoids / Q000032:analysis; D016166:Free Radical Scavengers / Q000494:pharmacology; D006801:Humans; D020128:Inhibitory Concentration 50; D020014:K562 Cells; D051379:Mice; D009154:Mutation / Q000187:drug effects*; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000494:pharmacology; D018517:Plant Roots; D031955:Rhamnus / Q000737:chemistry; D012486:Salmonella typhimurium / Q000187:drug effects* / Q000235:genetics; D019810:Sodium Azide / Q000494:pharmacology; D013481:Superoxides / Q000737:chemistry; D014969:Xanthine Oxidase / Q000037:antagonists & inhibitors / Q000378:metabolism
chemical_list: D016587:Antimutagenic Agents; D000972:Antineoplastic Agents, Phytogenic; D000975:Antioxidants; D004269:DNA, Bacterial; D005419:Flavonoids; D016166:Free Radical Scavengers; D010936:Plant Extracts; D013481:Superoxides; D019810:Sodium Azide; D014969:Xanthine Oxidase