Tualang Honey Protects the Rat Midbrain and Lung against Repeated Paraquat Exposure

Figure 4

TyrH immunohistochemical staining for evaluating damage to dopaminergic neurons. (a) Representative photomicrographs showing TyrH-immunopositive neurons in coronal sections showing the midbrain. The higher magnification (×200) for the boxed region shows the reduction in TyrH-positive neurons. (b) The numbers of TyrH-positive neurons in the SNpc regions were counted. Data are presented as the mean ± SEM, per group. The number of TyrH-positive neurons was significantly lower in PQ-intoxicated rats than in group N (). Compared with group PQ, the number of TyrH-positive neurons increased in group PQ + TH, although this difference is not statistically significant (). Group PQ + QH showed a significant increase in the number of TyrH-positive neurons compared to group PQ ().

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