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. 2021 Mar 16;11:628914. doi: 10.3389/fonc.2021.628914

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.