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 retinoic acid (RA) isomer concentrations on apoptosis of human breast cancer MCF-7 cells (A) and MDA-MB-231 cells (B). Apoptotic cells were detected the most at 1 µM all-trans RA. Results are expressed as relative % of control value. Values are means ± S.D. of three independent experiments. *p<0.05: compared to the control group
