원문정보
초록
영어
The scavenging activity of Magnolia denudata Desrousseaux on reactive oxygen species (ROS) were evaluated using 2’,7’-dichlorofluorescin diacetate (DCFH-DA) in HT 1080 cells. Methanol (MeOH) and dichloromethane (CH2Cl2) extracts inhibited dose-dependently generation
of ROS in the cellular system. MeOH and CH2Cl2 extracts were combined and fractionated with n-hexane, 85% aqueous MeOH, and n-butanol (n-BuOH). Both n-hexane-soluble and 85% aqueous-soluble fractions showing strong radical-scavenging activity in the cellular system were further separated by diverse chromatographic methods to give five known lignans. All these compounds exhibited significant radical-scavenging effect on intracellular ROS in a dose-dependent manner. Their scavenging activity on various reactive oxygen species (ROS) was also evaluated using electron spin resonance (ESR) spintrap techniques.