Ixora parviflora Protects against UVB-Induced Photoaging by Inhibiting the Expression of MMPs, MAP Kinases, and COX-2 and by Promoting Type I Procollagen Synthesis

Figure 1

The inhibition of Ixora parviflora extract and its hydrolysates on collagenase activity (a, b) and bacterial collagenase activity by fluorometric assay (c). DC: doxycycline; PG: propylene glycol; IPH1: 85°C, 1.2 N HCl; IPH2: 85°C, 2.4 N HCl; IPH3: 100°C, 1.2 N HCl; IPH4: 100°C, 2.4 N HCl. (𝑛=4; ^∗∗𝑃<0.01; ^∗∗∗𝑃<0.001).

(a)

(b)

(c)