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. 2018 Jun 5;9:566. doi: 10.3389/fphar.2018.00566

FIGURE 2.

FIGURE 2

Effect of Syzygium aqueum extracts on human keratinocytes. (A) Biocompatibility of S. aqueum extract in dose (25–200 μg/mL) and time (24–48 h) manner. Survival rate of the cells was assessed by the MTT assay. (B) ROS production in cells treated or untreated with theextract (100 μg/mL) and then irradiated by 100 J/cm2 UVA (+) or not (–). (C) Total GSH levels determined by DTNB assay. Results expressed as mean ± SD of three assays. Significant p < 0.01; ∗∗p < 0.001 compared to untreated control. Analysis performed by two-way ANOVA followed by Bonferroni’s multiple comparisons test. (D) Immunoblotting bands of the oxidative stress activated protein, p38. An equal amount (100 μg) of total lysate from each sample was resolved by SDS-PAGE with GAPDH as a control.