Table 5.

Chemicals with biologically meaningful effective concentrations. All compounds satisfy these criteria for being potentially bioactive and experimentally reproducible: R2 > 90%, IC50/EC50 < 10 μM, the upper boundary of 95% CI < 50 μM, and the dose response curves are sigmoidal; R values are derived from dose-response curves.

ChemicalIC50 (μM)95% CIR2Maximum Inhibition, %
Celastrol2.490.78–4.200.9494
Pristimerin3.252.96–3.551.0093
EC50 (μM)95% CIR2Maximum Activation, %
Apigenin0.63−0.60–1.860.96193
Biochanin A1.330.81–1.860.99259
Biochanin A diacetate2.311.50–3.120.99246
Chrysin1.460.86–2.060.97244
6,3′-dimethoxyflavone0.090.01–0.170.99268
6,4′-dimethoxyflavone0.090.01–0.170.99265