Different Proportions of Huangqi (Radix Astragali Mongolici) and Honghua (Flos Carthami) Injection on -Glucosidase and -Amylase Activities

Table 2

Inhibitory effect of Huangqi (Radix Astragali Mongolici) injection, Honghua (Flos Carthami) injection, and different proportions on yeast -glucosidase activity ().

Group	Concentration; (µg/mL)	Percentage of inhibition; (%)	IC50; (µg/mL)
Acarbose	2.5	70.2 ± 3.2	1.8 ± 0.4
	1.3	34.0 ± 2.7
	0.6	24.4 ± 1.7
	0.3	12.9 ± 1.2
Huangqi injection	2000	54.1 ± 5.6	1686 ± 810^a
	1500	43.6 ± 3.7
	750	38.1 ± 2.6
	375	9.7 ± 1.1
Honghua injection	125	89.8 ± 5.6	32.8 ± 5.7^ab
	62.5	66.9 ± 5.1
	31.3	46.6 ± 3.7
	15.6	22.8 ± 3.1
Different proportions
20 : 1	250	67.5 ± 5.7	122.6 ± 21.4^ab
	125	49.9 ± 5.1
	62.5	29.1 ± 3.1
	31.3	27.3 ± 2.9
10 : 1	250	82.0 ± 7.6	53.8 ± 5.5^abc
	125	67.8 ± 5.3
	62.5	57.3 ± 5.5
	31.3	34.8 ± 3.3
5 : 1	250	88.1 ± 9.1	55.5 ± 7.2^abc
	125	77.5 ± 6.9
	62.5	48.8 ± 4.1
	31.3	35.3 ± 2.1
2 : 1	250	85.7 ± 8.1	52.4 ± 11.6^abc
	125	66.8 ± 6.1
	62.5	56.9 ± 6.1
	31.3	33.2 ± 3.0

Notes: , compared with acarbose control. , Honghua injection and different proportions compared with Huangqi injection. , proportions 10 : 1, 5 : 1, and 2 : 1 compared with 20 : 1. IC₅₀: half maximal (50%) inhibitory concentration on yeast -glucosidase activity.