Neuroprotective Effect and Mechanism of Thiazolidinedione on Dopaminergic Neurons In Vivo and In Vitro in Parkinson’s Disease

Figure 2

TH-positive neurons in different groups. “a” indicates , compared with control group; “b” indicates , compared with pioglitazone group; “c” indicates , compared with MPTP group. The bars in (a)–(f) indicate 100 μm; the arrows in each picture show the same neurons.

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