An official website of the United States government
Here's how you know
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.
Changes of 8-OHdG levels in rats after exposure to cigarette smoke. a 8-OHdG levels in urine of rats after exposure to cigarette smoke for different weeks. b 8-OHdG levels in lymphocytes and lung tissue of rats exposed to cigarette smoke. *p < 0.05, compared with control group