TABLE 1

Effect of rosolic acid and its derivatives on endothelial heme oxygenase activity and cell viability The table shows the activity of heme oxygenase measured 6 h after exposure of endothelial cells to 15 μM RA, aurintricarboxylic acid, or pararosaniline chloride. Cell viability was also measured after incubation of the triphenylmethanes for 6 h, and no significant cytotoxicity was observed. Data are expressed as the mean ± S.E.M. of five independent experiments.