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 Parmelia sulcata extract (PSE) on PARP cleavage (a) and caspase-3 activity (b). The cells were treated with 100 μg/ml PSE and 3.12 μM Paclitaxel (as a positive control) for 72 h. Active caspase-3 not shown in part b as MCF-7 cells are not able to produce this enzyme. Asterisks denote statistically significant change from control (p < 0.05)
