RESUMO
A new triterpenoid saponin, named semenoside A (1), was isolated from Semen Celosia cristatae. Its structure was elucidated on the basis of 1D, 2D NMR, HR-FAB-MS and ESI-MS techniques, and physicochemical properties. The hepatoprotective activity of semenoside A with an oral dose of 1.0, 2.0 and 4.0mg/kg, respectively, were investigated by carbon tetrachloride (CCl(4))-induced hepatotoxicity in mice. The results indicated that it had significant hepatoprotective effects (p < 0.01).
Assuntos
Intoxicação por Tetracloreto de Carbono/prevenção & controle , Celosia/química , Fitoterapia , Saponinas/isolamento & purificação , Animais , Medicamentos de Ervas Chinesas/uso terapêutico , Camundongos , Estrutura Molecular , Saponinas/química , Saponinas/uso terapêutico , Sementes/químicaRESUMO
Constituents of the fruits of Peatasites tatewakianus were investigated. A new compound, namely bakkenolide-VI (1), was isolated. The structures was elucidated on the basis of 1D, 2D NMR, TOF-MS and ESI-MS techniques, and physicochemical properties. The neuroprotective activity of the new compound was assayed with primary cultured neurons exposed to oxygen-glucose deprivation and oxidative insults.
