Chemical Composition and Anti-Inflammatory Activity of the Hydrodistillate from Mariscus pedunculatus

نویسندگان

  • Antonio C. Siani
  • Ana M. P. Silva
  • Marcos J. Nakamura
  • Márcia V. De Carvalho
  • Maria G. M. O. Henriques
  • Mônica F. S. Ramos
  • Carlos R. Kaiser
چکیده

Os rizomas de Mariscus pedunculatus, quando submetidos à hidrodestilação, forneceram uma mistura do diidrobenzofurano remirol e do benzopirano iso-evodionol, na proporção de 5.7:1. Estas substâncias foram separadas e purificadas por intermédio de sucessivas cromatografias de camada delgada preparativa. As estruturas foram confirmadas por métodos espectroscópicos, incluindo técnicas bidimensionais de RMN, e pelo produto de hidrogenação, no caso do remirol. Entre as substâncias voláteis, foram identificados traços de outros oito sesquiterpenos por CGEM associada aos cálculos de índice de retenção. O hidrodestilado bruto, assim como as substâncias purificadas foram testadas quanto à atividade antiinflamatória, no modelo de pleurisia induzida em camundongos por lipopolissacarídeo (LPS, 12,5 ng/cavidade). Tanto o extrato bruto quanto o remirol puro (100 e 200 mg kg, via oral) demonstraram uma capacidade dose-dependente de inibir o acúmulo de neutrófilos e eosinófilos na cavidade pleural dos animais. O iso-evodionol não apresentou efeito antiinflamatório.

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تاریخ انتشار 2001