title: Radical scavenging, antioxidant and cytotoxic activity of Brazilian Caatinga plants.
abstract: Extracts of 32 plants from the Brazilian northeastern semi-arid region called Caatinga were evaluated through DPPH radical scavenging assay, beta-carotene bleaching, and brine shrimp lethality tests (BST). Among the extracts studied Byrsonima cf. gardneriana, Mascagnia coriacea, Cordia globosa, Diodia apiculata and Hypenia salzmannii showed the highest activities in DPPH radical scavenging test. In the beta-carotene bleaching test the highest activities were observed for Passiflora cincinnata, Chamaecrista repens, B. cf. gardneriana, Rollinia leptopetala, Serjania glabrata, Diospyros gaultheriifolia, C. globosa, Mimosa ophtalmocentra, M. coriacea and Lippia cf. microphylla. In contrast, R. leptopetala, Zornia cf. brasiliensis and Leonotis nepetifolia were the most active species in the BST.
authors.affiliation: Faculdade de Farmácia, Universidade Federal da Bahia, 40170-290 Salvador-BA, Brazil. jucenti@ufba.br
authors.forename: Juceni P
authors.initials: JP
authors.lastname: David
authors.forename: Marilena
authors.initials: M
authors.lastname: Meira
authors.forename: Jorge M
authors.initials: JM
authors.lastname: David
authors.forename: Hugo N
authors.initials: HN
authors.lastname: Brandão
authors.forename: Alexsandro
authors.initials: A
authors.lastname: Branco
authors.forename: M
authors.initials: M
authors.lastname: de Fátima Agra
authors.forename: M Regina V
authors.initials: MR
authors.lastname: Barbosa
authors.forename: Luciano P
authors.initials: LP
authors.lastname: de Queiroz
authors.forename: Ana M
authors.initials: AM
authors.lastname: Giulietti
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D001156:Artemia / Q000187:drug effects; D001713:Biphenyl Compounds; D001938:Brazil; D016166:Free Radical Scavengers / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D020128:Inhibitory Concentration 50; D007928:Lethal Dose 50; D008519:Medicine, Traditional; D008517:Phytotherapy; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D010946:Plants, Medicinal
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D010851:Picrates; D010936:Plant Extracts; C004931:1,1-diphenyl-2-picrylhydrazyl