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 tryptanthrin on the survival rate of K562 cells. Cells were treated with various concentrations of tryptanthrin for 24 h and 48 h. The cell survival rate was determined by MTT assay. Each data point is the mean of three replicates; bars represent the standard deviation.
