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(a) Effect of different doses of OED on the proliferation of hCE-2 cells after 72 hours of culture. From 100 µL to 300 µL of OED/day, a negligible effect on the extent of growth was observed. However, 400 µL to 500 µL of OED/day resulted in cytotoxic effects. (b, c) Scratch assay: representative results in the hCE-2 cell line after 24 hours of treatment with OED and PBS.
