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. 2012 Apr 5;17(4):4142–4157. doi: 10.3390/molecules17044142

Table 5.

IC50 values of leaves, flowers and wood extracts of P. imperiale in tumor cells MCF-7 determined by MTT.

Extracts/Control IC50 (µg/mL) *
Leaves 18.6 ± 1.2
Flowers 24.5 ± 1.5
Wood 30.7 ± 1.7
Curcumin 8.2 ± 0.7

* IC50 was calculated as the concentration (µg/mL) of extract causing a 50% inhibition of cell viability.