(a)
(b)
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Figure 4: DHI treatment promoted fibrinogenolysis in the adhesion tissue of the rat model 7 days after operation (; compared with the control group, ). (a) MMP9 staining of each group at 100x magnification; the top right corner is shown at 200x magnification. The brackets indicate tissue in the adhesion area. (b) MMP9 staining scores of each group (compared with the control group, , normal distribution, one-way ANOVA). (c) The t-PA expression in the adhesion tissue of each group (compared with the control group, , abnormal distribution, Kruskal-Wallis test). (d) The PAI-1 expression in the adhesion tissue of each group (compared with the control group, , abnormal distribution, Kruskal-Wallis test).