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Representative gelatinolysis activity and gelatin zymographies in diafragham muscle of mice chronic cigarette smoke exposure. (a) Densitometry metalloproteinase-2 (MMP-2) gelatinolysis activity groups; (b) densitometry metalloproteinase-9 (MMP-9) gelatinolysis activity groups; (c) MMP-2 gelatin zymographies; (d) MMP-9 gelatin zymographies. A = p < 0.05: compared to control group.
