TH and hydrops fetalis: Then, immunohistochemical staining for TH indicated that adenine significantly increased the number of TH‐positive neurons, and this number was reduced in the SNpc of MPTP‐treated mice (Figure 4G,HF(2, 15) = 22.41, p < 0.001, p < 0.001 Ctrl vs. MPTP, p < 0.05 MPTP vs. MPTP+ Adenine).