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.
Photomicrographs of the TrkB stained cerebellums from normal animals exercised for 7 days (b) or 30 days (d) and their sedentary controls (a) and (c), respectively. Notice that runners regardless of the 7-day (b) or 30-day (d) exercise duration have darker stained Purkinje cells than the sedentary controls (a) and (c), respectively. MCL: molecular cell layer; GCL: granule cell layer. Scale bar in the lower right panel refers to all photos.
