Fig. 4.
Effect of rose absolute oil (RAO) on the cell growth. Normal human epidermal keratinocytes were treated with 10µg/ml RAO for the indicated time points in the presence of 1µCi of [3H]thymidine. Calcium (1.2 mM) was included as a positive control for keratinocyte differentiation. Cells were lysed using 0.1 N NaOH and radioactivity was measured. Data are expressed as percentage of control. The mean values±SEM are averages of triplicate measurements.