Table 1. Effects of the tested compounds on the growth of BAEC cells¹.

Compound	IC50 (µM)
1 (hyperforin DCHA)	2.1±0.7
2	12.4±1.5*
3	12.4±3.1*
4	4.5±2.0*
5	84.4±12.7*
6	5.3±1.7*
7	8.0±2.0*
8	1.7±0.1

¹IC₅₀ values were calculated from dose-response curves as the concentration of compound yielding a 50% of control cell survival. They are expressed as means±S.D. of three different experiments with quadruplicate samples in each.

*Mean values are significantly higher than that of hyperforin (p<0.05, according to a Student's paired sample test).