Fig. 4From: Anti-cancer effects of Rhizoma Curcumae against doxorubicin-resistant breast cancer cellsEffect of essential oil on P-gp function in doxorubicin-resistant MCF-7 cells. P-gp function evaluation was performed by a 30-min incubation of a Rhodamine 123 and b Calcein AM using flow cytometry after 1-h treatment of essential oil (E; µg/mL). Ctrl stands for control. Data were representative mean fluorescence intensity (MFI) of at least three independent experimentsBack to article page