Figure 5.
Photomicrographs ( × 10 magnification) of c-Fos immunoreactivity in the dmCPu of rats from all groups challenged by nicotine or saline on a final test day. Black arrows are indicating positively labeled nuclei. Scale bar=100 μm.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.