title: Neuroprotective effect of Jatrorrhizine on hydrogen peroxide-induced cell injury and its potential mechanisms in PC12 cells.
abstract: The neuroprotective effects of Jatrorrhizine from Coptidis Rhizoma against hydrogen peroxide (H(2)O(2))-induced rat pheochromocytoma line PC12 injury and its potential mechanisms were evaluated in the present study. When cells were exposed to H(2)O(2) (200 μM) for 12h, there was a significant reduction in cell survival and activity of antioxidant enzyme (SOD and HO-1) and LDH release. In addition, increased ROS production, declined MMP and increased production of malondialdehyde (MDA) were observed. Preincubation of cells with Jatrorrhizine (0.01-10.0 μM) 24h prior to H(2)O(2) exposure markedly elevated cell viability and activities of antioxidant enzyme (SOD and HO-1), prevented LDH release and lipid peroxidation (MDA) production, attenuated the decrease of MMP and scavenged ROS formation. Jatrorrhizine also attenuated caspase-3 activation of the downstream cascade following ROS. Our results suggest that Jatrorrhizine holds potential for neuroprotective effects against H(2)O(2)-induced injury.
authors: Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
authors: Tao
authors: T
authors: Luo
authors: Hui
authors: H
authors: Zhang
authors: Wei-Wei
authors: WW
authors: Zhang
authors: Jun-Ting
authors: JT
authors: Huang
authors: En-Lin
authors: EL
authors: Song
authors: Sheng-Guo
authors: SG
authors: Chen
authors: Feng
authors: F
authors: He
authors: Jie
authors: J
authors: Xu
authors: Hua-Qiao
authors: HQ
authors: Wang