Figure 5.

Fluorescent colocalization of NOsGC α₁ subunit and different interneuron markers in the rat hippocampal CA1 region. Fluorescent light micrographs show a partly overlapping labeling of NOsGC α₁ subunit with several types of interneurons that are CCK (A), PV (B), nNOS (C), or SOM (F) positive. D, nNOS and SPR show a partly overlapping labeling as well; however, CB₁ and nNOS positivity could not be detected in the same cells (E). Arrowheads show cells with colocalized markers, and open arrowheads show cells labeled only with one of the markers. Scale bar, 50 μm.