Figure 1. Immunohistochemistry of endogenous Ns in adult human brain sections.

Ns (brown) forms a punctate pattern that is localized within neurons of the cortex (A, C) and hippocampus (B, D). Ns is primarily detected in the soma, proximal to the main axon; (C) and (D) (×40) are magnified images of (A) and (B) (×20) respectively. The sections were counterstained with Mayer's haematoxylin. Scale bars: (A, B) 10 μm (×20) and (C, D) 5 μm (×40).