Figure 6.
Distribution of VGluT1/VGluT2+ or GAD67+ or PPT-A+ mRNA in the ventral medulla at two levels within the MCPA, bregma −14.6 mm (top panels) and first cervical segment (bottom panels). VGluT1/VGluT2+ and GAD67+ neurons were found widely distributed throughout the gray matter. PPT-A+ neurons had more a more restricted distribution with a heavily labeled group ventromedial to the caudal spinal trigeminal nucleus. At both levels, the distribution of labeled neurons within the MCPA was similar. Scale bar, 500 μm.