Fig. 8: Effect of MPTP treatment on ChAT / HuC/HuD-ir neurons in the proximal and distal colon.

Panels (a, b) show proximal and (c, d) show distal colon. Quantitative analysis of HuC/HuD- and ChAT-ir neurons in MPTP-treated marmosets compared to naϊve controls in the proximal and distal colon is shown in panels (b) and (d), respectively. The number of immunoreactive neurons are expressed as mean ± SEM. **P < 0.01 compared to naïve control (Students t-test). The scale bar in panel (a) indicates 100 µm.