Expression profiles of 4 proteins that showed significantly different changes between the MPTP and MPTP + EA groups after 2-dimensional electrophoresis. MPTP increased the expression of COX5b and decreased the expressions of cMDH, Munc18-1, and HAGH in mouse striatum, but electroacupuncture at GB34 normalized these changes. COX5b cytochrome c oxidase subunit Vb, cMDH cytosolic malate dehydrogenase, HAGH hydroxyacylglutathione hydrolase