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.
Mean cortisol level. (A) The mean cortisol levels before and after the test are reported as mean±2 standard deviation (SD; n=6 rats). (B) The mean difference in cortisol levels between pre- and post-test without outliers is presented as mean±2 SD (n=6 rats; except for n in the positive control group=5 rats). *P<0.05; †P<0.01. NC, negative control; PC, positive control; EGCG, epigallocatechin-3-gallate.
