title: Anti-Helicobacter pylori activity of plant extracts traditionally used for the treatment of gastrointestinal disorders.
abstract: The antibacterial activity of plant extracts obtained from Bixa orellana L., Chamomilla recutita L., Ilex paraguariensis A. St.-Hil., Malva sylvestris L., Plantago major L. and Rheum rhaponticum L. has been evaluated against two reference strains and eleven clinical isolates of Helicobacter pylori. All the plant species chosen are used in popular Brazilian cuisine and folk medicine in the treatment of gastrointestinal disorders. Initial screening was made by the disk diffusion test and then minimum inhibitory concentration was determined by the agar dilution method. The results presented in this work demonstrated that among the plant preparations analyzed, B. orellana L., C. recutita L., I. paraguariensis A. St.-Hil. and M. sylvestris L. were capable of inhibiting the in vitro growth of H. pylori.
authors.affiliation: Hospital de Clínicas da Universidade Federal do Paraná , Curitiba, PR , Brasil ; Programa de Pós Graduação em Processos Biotecnológicos da Universidade Federal do Paraná , Curitiba, PR , Brasil.
authors.forename: Laura Lúcia
authors.initials: LL
authors.lastname: Cogo
authors.forename: Cristina Leise Bastos
authors.initials: CL
authors.lastname: Monteiro
authors.forename: Marilis Dallarmi
authors.initials: MD
authors.lastname: Miguel
authors.forename: Obdulio Gomes
authors.initials: OG
authors.lastname: Miguel
authors.forename: Miriam Machado
authors.initials: MM
authors.lastname: Cunico
authors.forename: Marcelo Lima
authors.initials: ML
authors.lastname: Ribeiro
authors.forename: Eloá Ramalho
authors.initials: ER
authors.lastname: de Camargo
authors.forename: Gislene Maria Botão
authors.initials: GM
authors.lastname: Kussen
authors.forename: Keite da Silva
authors.initials: Kda S
authors.lastname: Nogueira
authors.forename: Libera Maria Dalla
authors.initials: LM
authors.lastname: Costa
keywords: Helicobacter pylori; antibacterial activity; plant extracts
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