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

Table 2

The inhibition of calycosin on proliferation of K562 cells.

Calycosin concentration (𝜇g/mL)	24 h		48 h		72 h
	OD value	Inhibition rate %	OD value	Inhibition rate %	OD value	Inhibition rate %
Control group	0.48±0.01	0.6	0.56±0.02	0.1	0.70±0.02^∗∗	0.01
20	0.41±0.02	15.1	0.49±0.03^∗∗	18.8	0.56±0.02^∗∗	19.7
50	0.34±0.02^∗∗	30.2	0.41±0.05^∗∗	31.2	0.48±0.01^∗∗	30.4
100	0.27±0.01^∗∗	45.0	0.34±0.02^∗∗	43.2	0.39±0.03^∗∗	43.3
200	0.21±0.02^∗∗	57.9	0.25±0.01^∗∗	58.1	0.29±0.01^∗∗	57.9
400	0.15±0.01^∗∗	67.9	0.17±0.01^∗∗	71.2	0.19±0.01^∗∗	72.0

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