Fos expression in catecholaminergic medullary neurons induced by chemical stimulation of stomach projecting to the paraventricular nucleus of the hypothalamus in rats

Figure 1 A: Horseradish peroxidase labeled neuron (open triangle), Tyrosin hydroxylase-like immunoreactive neuron (arrow) and Fos-like immunoreactive/Tyrosin hydroxylase-like immunoreactive double-labeled neuron (black triangle) in the ventrolateral medulla and reticular formation of medulla, × 200; B: Tyrosin hydroxylase-like immunoreactive neuron (open triangle) and Horseradish peroxidase/Tyrosin hydroxylase-like immunoreactive double-labeled neuron (arrow in the nucleus tractus solitarii of medulla, × 400; C: Fos-like immunoreactive neuron (arrows) and Fos-like immunoreactive/Horseradish peroxidase double-labeled neuron (open triangle) in the nucleus tractus solitarii of medulla, × 400.

Figure 2 A: Fos-like immunoreactive neurons (open triangle) and Fos-like immunoreactive/Tyrosin hydroxylase-like immunoreactive double-labeled neuron (arrow) in the nucleus tractus solitarii of medulla; B: Tyrosin hydroxylase-like immunoreactive (open triangle) and Fos-like immunoreactive/Horseradish peroxidase/Tyrosin hydroxylase-like immunoreactive triple-labeled neuron (arrow) in the nucleus tractus solitarii of medulla, × 400.