Table 2.

Anti-inflammatory activity of N. deflersiana extracts.

aSample Name	% decrease in oxidative stress	Inhibition of NF-kB activity IC50 in µg/ml	Inhibition of iNOS activity IC50 in µg/ml
Pet. ether extract	NA	NA	NA
CHCl3 extract	NA	NA	NA
EtOAc extract	55	17	29
n-BuOH extract	52	39	18
Parthenolideb	-	0.7	0.2
Quercetinb	74	-	-

^aAt 1000 µg/ml.

^bPositive control, NA: no activity up to 100 μg/mL (NF-kB, iNOS) and 500 μg/mL (oxidative stress).