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Quantitative flow cytometry analyses using propidium (PI) uptake and annexin V staining in PD7 (A) and TC7 (B) colon cancer cells treated with two concentrations (a: 125 and b: 1000 mg/L) of 1 (Fr 1: total extract), 2 (Fr 2: vit. C), 3 (Fr 3: neutral polyphenols) and 4 (Fr 4: acid polyphenols or flavonoids) from rosehip (Rosa canina L) after 72 h. In control (C), the cells are without treatment. Experiments were performed in triplicate.
