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MMP expression in cardiac myxomas evaluated by Western blot analysis. A: Pro-MMP-2, pro-MMP-9, pro-MT1-MMP, and TIMP-2 content is increased in embolic as compared to nonembolic myxomas. B: Densitometric blot analysis in uOD values confirms that MMP expression is increased in embolic as compared to nonembolic myxomas; results are given as means ± SEM; *P < 0.05 and **P < 0.002 versus nonembolic myxomas Ca, control mammary carcinoma.
