Table 2.

Percentage change of p-ERK, p-p38 and MMP-1 expression in PM-induced HaCaT cells treated with morin.

Protein	Percentage Change (%) a
	Concentration of Morin
	25 µM	40 µM
p-ERK	81.24 ± 8.46	96.31 ± 4.3
p-p38	60.14 ± 10	77.71 ± 9.13
MMP-1	NE b	97.52 ± 25.86

^a Percentage change was calculated from quantitative results of Figure 4 and Figure 5 and by following equation: |Fold change^PM –Fold change^MD|/|Fold change^PM –Fold change^Con| × 100%. Data were presented as mean ± SD and from triplicate experiments. ^b NE: no effect.