From:  Essential oil from the leaves of Croton thorelii Gagnep.: chemical composition and biological activities

 In vitro anti-inflammatory activity of the leaf essential oil of Croton thorelii.

Concentration
(µg/mL)
Croton thorelii Concentration
(µg/mL)
Dexamethasonea
NO inhibition rate (%)Viability rate (%)NO inhibition rate (%)Viability rate (%)
10061.46 ± 2.3757.91 ± 2.9810086.59 ± 1.1292.71 ± 2.45
5010.57 ± 1.0183.47 ± 2.202053.83 ± 1.0799.09 ± 1.54
255.85 ± 0.61-441.84 ± 0.98-
12.51.81 ± 0.12-0.831.91 ± 0.92-
IC50bNA (not available)-IC5013.24 ± 1.23-

a Positive control; b concentration that inhibits 50% of NO production. -: not tested. Values are expressed as mean ± standard deviation (SD) (n = 3).