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Ratio of cardiac MyHCα/MyHCβ isoforms from left ventricles of adult euthyroid (EU), hyperthyroid (TH), and hypothyroid (HY) Lewis rats. MyHC isoforms were separated by SDS-PAGE, silver-stained, and quantified by densitometric evaluation (Quantity One Software, BioRad). The data are expressed as a mean ± SD, *significantly different from EU and TH, P < 0.05, number of animals = 5.
| Thyroid status | The ratio |
|---|---|
| EU | 3.84 ± 0.72 |
| TH | 4.39 ± 0.63 |
| HY | 0.09 ± 0.05* |
