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Myocardial protein expression of MDM2 in MI and DM + MI rats. (A): Representative Western blot for MDM2, (B): Densitometric analysis of MDM2 immunoreactivity. Arrow shows MDM2 degradation product. In all samples, the densitometric measurement of MDM2 immunoreactivity was normalized to α-tubulin expression. **P = .003; ***P < .0001.
