Figure 7 : The results of the immunohistochemical analysis of the MMP-9 expression in the skin of NC/Nga mice.

(a) The MMP-9 expression in the conventional COEE group was decreased compared with that in the conventional control and BC groups.
Control: not exposed to any topical preparation.
COEE: treated with a cream containing Corchorus olitorius leaf extract excluding high molecular weight compounds
BC: treated with the base cream. The scale bar represents 100 μm.
(b) Comparison of MMP-9 positive cell counts among three groups in conventional conditions. *: p<0.05, **: p<0.01 (one-way ANOVA
followed by Tukey’s test).

Yokoyama et al.Dermatology Aspects  2014 2:3DOI : 10.7243/2053-5309-2-3