Table 2.
CI values of the combination of relatively low concentrations of AsIII and gamabufotalin in U-87 cells.
| As (μM) | Gamabufotalin (nM) | Fa | CI value |
|---|---|---|---|
| 1 | 20 | 0.34 | 0.77496 |
| 1 | 50 | 0.42 | 0.87181 |
| 2 | 20 | 0.45 | 0.79036 |
| 2 | 50 | 0.49 | 0.90709 |
CI < 1 represents synergism. As, AsIII; Fa, the effect levels; CI, combination index.