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  • Title: Acupuncture inhibits oxidative stress and rotational behavior in 6-hydroxydopamine lesioned rat.
    Author: Yu YP, Ju WP, Li ZG, Wang DZ, Wang YC, Xie AM.
    Journal: Brain Res; 2010 Jun 08; 1336():58-65. PubMed ID: 20399757.
    Abstract:
    Increasing evidence suggests the beneficial effects of acupuncture on Parkinson's disease (PD). Although clinical evidence for the acupuncture anti-Parkinson's disease effect has been demonstrated, the precise mechanism still remains elusive. It has been suggested a relationship between PD and reactive oxygen species (ROS) can result in neurodegeneration. The aim of this study was to evaluate the status of oxidative stress, as well as the antioxidant enzyme response, and the role of acupuncture stimulation at GB34 (Yanglingquan), LR3 (Taichong), ST36 (Zusanli) and SP10 (Xuehai) acupoints on regulating oxidative stress in the nigrostriatal system in the 6-hydroxydopamine (6-OHDA) lesioned rat. Two weeks after unilateral injection of 6-OHDA into the left medial forebrain bundle (MFB), an apomorphine induced rotational behavior test was performed. The levels of enzymatic, viz., superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and nonenzymatic, viz., reduced glutathione (GSH), and the levels of malondialdehyde (MDA) in the nigrostriatal system were measured to assess the oxidative stress status. Brain MDA levels significantly increased, while GSH levels were decreased in impaired groups with 6-OHDA injection only, accompanied by a marked reduction in the level of SOD and GSH-Px. The levels of oxidative stress related parameters except CAT, as well as the rotational asymmetry, were reversed by acupuncture stimulation. These results showed that acupuncture treatment displayed antioxidative and/or neuroprotective properties in the 6-OHDA lesioned rat and these protective properties might be mediated, at least in part, by involving regulation of the antioxidant defense system.
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