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.
Effect of betulinic acid (BA) on cell proliferation in KB cells. KB cells were incubated with 12.5–100 μM BA for 24 h (A), 48 h (B), and 72 h (C). Cell proliferation was detected by a cell counting kit-8 (CCK-8) assay kit. Results were shown as folds of control. *p < 0.05, compared with that of the control.
