Figure 4. DMH-NPY projections in close apposition with CART neurons in the PVH of lactating rats.
(A) 20x confocal image showing triple label immunostaining for NPY (green), BDA (red), and CART (blue) in the PVH of a lactating rat. The arrow indicates a fiber containing NPY and BDA near a CART cell body. (B) 40x confocal image showing BDA-containing axonal swelling (white arrow) in close apposition to a CART cell (yellow arrowhead). (C) 40x confocal image showing NPY-containing axonal swelling in close apposition to a CART cell. (D) Overlay image for BDA and NPY co-localized fiber in close apposition to a CART cell. (E-G) Stacks of optical slices (3 μm total at 0.5μm increments) of a CART cell body in close contact with BDA and NPY-containing axonal swelling. Z-coordinates are indicated in single optical slices relative to a reference point, z = 0 μm.