Cytotoxic Activities against Breast Cancer Cells of Local Justicia gendarussa Crude Extracts

Table 2

Percentage viability of MDA-MB-231 cells in leaf extracts from five different locations.

Concentration (μg/mL)	7.81	15.63	31.25	62.5	125	250	500	1000
Leaf extract; from Mersing	60.25 ± 0.06	54.35 ± 0.05	55.95 ± 0.08	33.91 ± 0.07	24.08 ± 0.02	23.78 ± 0.02	17.60 ± 0.03	29.85 ± 0.08
Leaf extract; from Muar	79.26 ± 0.07	72.89 ± 0.07	71.35 ± 0.08	70.34 ± 0.07	63.49 ± 0.09	54.58 ± 0.04	8.29 ± 0.01	11.54 ± 0.02
Leaf extract; from Skudai	67.41 ± 0.03	64.76 ± 0.01	55.77 ± 0.03	50.44 ± 0.03	49.61 ± 0.01	47.07 ± 0.04	8.42 ± 0.01	11.65 ± 0.01
Leaf extract; from Batu Pahat	82.67 ± 0.07	78.96 ± 0.02	77.20 ± 0.02	60.89 ± 0.01	58.22 ± 0.01	50.59 ± 0.01	11.40 ± 0.01	10.28 ± 0.01
Leaf extract; from Pulai	74.61 ± 0.08	73.06 ± 0.07	69.24 ± 0.09	66.06 ± 0.10	65.44 ± 0.10	60.58 ± 0.07	53.23 ± 0.03	16.71 ± 0.02

Values are mean ± STDEV for 3 replicates < 0.05, < 0.01, and < 0.001 compared to control (untreated cell).