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Table 1 Efficacy of anti-inflammatory CAMS relative to cellular toxicity in LPS activated RAW 264.7 cells

From: Natural product HTP screening for antibacterial (E.coli 0157:H7) and anti-inflammatory agents in (LPS from E. coli O111:B4) activated macrophages and microglial cells; focus on sepsis

RAW 264.7 cells + 1μ/mL LPS: anti-inflammatory potency

Substance

Anti-inflammatory IC50 (μg/mL)

Toxicity LC50 (μg/mL)

iEI (LC50/IC50)

L-N-lysine dihydrochloride

4.4

250.0

>57.4

Cardamonin

6.1

250.0

>40.8

Dexamethasone

1.6

260.0

>22.4

Hydrocortisone

45.6

250.0

>5.4

Bay Leaf/Laurus nobilis

92.6

537.0

>5.8

Tansy Herb/Tanacetum vulgare

76.7

934.9

12.2

Apicidin

0.2

2.4

11.7

Apigenin

30.8

252.0

8.2

Yerba Santa Lf/E. californicum

194.0

1413.4

7.3

Butein

8.0

57.9

7.3

Ashwagandha/Withania somnifera

457.2

3306.0

7.2

Centipeda Herb/Centipeda minima

213.7

1260.5

5.9

Rosemary Lf/Rosmarinus officinalis

132.4

754.8

5.7

Feverfew/Tanacetum parthenium

48.4

264.2

5.5

Green Tea Std sigma T5550

45.5

228.7

5.0

Elecampane Root/Inula helenium

257.8

1276.0

4.9

Quercetin

14.3

63.8

4.5

Commiphora myrrha resin

127.1

5221.1

4.1

Amla/Phyllanthus emblica

156.7

641.0

4.1

Herb de province

203.4

793.2

3.9

Turmeric Root/Curcuma longa

87.3

274.3

3.1

Biochanin A

119.0

345.1

2.9

Trifala

195.3

559.5

2.9

Cinnamon/Cinnamomum burmannii

344.9

923.0

>2.6

EGCG

20.0

50.8

2.5

Bergamottin

67.1

161.7

2.4

Osha Root/Ligusticum porteri

43.4

104.1

2.4

Kalijiri Purple Fleablame

58.0

130.0

2.2

Curcumin

12.6

28.1

2.2

Rabdosia rubescens Herb

104.9

220.3

2.1

White Sage/Salvia apiana

62.0

129.5

2.1

Blood Root/Sanguinaria canadensis

23.4

47.4

2.0

  1. The data represent LC50 values for toxicity and IC50 values for NO2- reduction both determined by regression analysis on a minimum of 6 concentrations,(n = 4). The ratio of LC50/IC50 μg/mL is the iEI (in- vitro efficacy index), where the greater the value the greater the confidence in the anti-inflammatory effects. The symbol [>] denotes an iEI value acquired on a maximum upper limit concentration being tested