Investigation of Effects and Mechanisms of Total Flavonoids of Astragalus and Calycosin on Human Erythroleukemia Cells

Table 1

The inhibition of TFA on proliferation of K562 cells.

TFA concentration (𝜇g/mL)	24 h		48 h		72 h
	OD value	Inhibition rate %	OD value	Inhibition rate %	OD value	Inhibition rate %
Control group	0.49±0.02	0.5	0.59±0.02	0.6	0.62±0.04^∗∗	0.7
20	0.46±0.03	5.8	0.46±0.04^∗∗	22.7	0.48±0.01^∗∗	23.5
50	0.42±0.04^∗∗	14.9	0.40±0.03^∗∗	31.4	0.32±0.01^∗∗	48.9
100	0.28±0.04^∗∗	44.1	0.34±0.06^∗∗	42.8	0.24±0.01^∗∗	62.4
200	0.06±0.03^∗∗	88.5	0.16±0.04^∗∗	72.9	0.09±0.02^∗∗	85.0

Data expressed as mean 𝑥±𝑠, ^∗∗𝑃<0.01 compared with control group.