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Representative microphotographs of dopaminergic neurons stained for TH and the quantification of TH positive cell in each group. The pictures were taken at an original magnification of 10×. Scale bars: 100μm. Saline means saline control group, MPTP means model group, MPTP+ECH means MPTP+ECH group, MPTP+Selegiline means positive drug control group, and ECH means ECH group. ∗p<0.05, ∗∗∗p<0.001, compared with saline; ##p<0.01 and ###p<0.001, compared with MPTP.
