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 a superior rectus muscle labeled with daily BrdU for 7 days 1 week after a single injection of Botox. BrdU is immunostained black and dystrophin, which demarcates the sarco-lemma, is immunostained brown. Horizontal arrow: a BrdU-positive myonucleus; vertical arrow: BrdU-positive cell in the satellite cell position. Bar, 50 μm.
