Research Article

Bioactive Compounds of Raspberry Oil Emulsions Induced Oxidative Stress via Stimulating the Accumulation of Reactive Oxygen Species and NO in Cancer Cells

Figure 4

Level of free oxygen radicals after incubation with oil emulsion from raspberry oils extracted by supercritical CO2 (ROSCO2) and cold pressed (ROCOP); , , and —significant difference compared to control; #, ##, and ###—significant difference between tested oils. The results were compared to control and expressed as —the ratio of spectrofluorometrically measured level of free oxygen radicals of cells with tested oils () to a negative control culture (—cells without tested oils). Cell lines: colon adenocarcinoma (LoVo), doxorubicin-resistant colon adenocarcinoma (LoVo/DX), breast cancer (MCF7), doxorubicin-resistant breast cancer (MCF7/DX), and lung cancer (A549).
(a)
(b)
(c)
(d)
(e)