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Table 4 Inhibitory activities of compounds on NO production in LPS-activated RAW 264.7 macrophages

From: Fractions and isolated compounds from Oxyanthus speciosus subsp. stenocarpus (Rubiaceae) have promising antimycobacterial and intracellular activity

Samples

Concentration (μg/mL)

NO production

(μM)

% NO

inhibition

% cell

viability

Lutein

25

0.14 ± 0.02

94.99

91.59

12.5

0.44 ± 0.15

83.85

92.59

6.25

1.37 ± 0.07

49.46

86.84

3.12

1.98 ± 0.08

27.17

74.20

Rotundic acid

25

0.48 ± 0.18

82.39

87.48

12.5

1.19 ± 0.16

56.24

86.11

6.25

2.01 ± 0.16

26.20

78.51

3.12

2.39 ± 0.09

12.16

73.73

Quercetin

25

0.35 ± 0.10

99.35

57.60

12.5

0.30 ± 0.05

106.61

79.23

6.25

0.69 ± 0.08

110.49

105.03

3.12

2.50 ± 0.48

94.50

101.23

  1. Values are expressed as mean ± SD