Figure 3.

Low-sodium diet modifies p75^NTR expression in the rat adrenal. A–C, Adrenal glomerulosa expression of p75^NTR is shown for control (A), low-sodium diet (B), and sodium-repleted (C) rats. D–E, Adrenal sections labeled for p75^NTR (red) and NPY (green) showed nerve fibers in the zona glomerulosa (D) and extending into the zona reticularis (E) that coexpressed p75^NTR and NPY (yellow, arrowhead) or expressed only NPY (arrows). Chromaffin cells (medulla) also coexpress p75^NTR and NPY. Adrenal capsule (cap) is indicated. Scale bar, 50 μm.