Table 2.

Percentage of α– and β–myosin heavy chains in myocardium. ($\overline{\mathrm{X}}$ ± s.e.).

%	Control	PbO–NP	CdO–NP	PbO–NP + CdO–NP
α–MHC	92 ± 1.06	76 ± 2.04 *	78 ± 1.63 *	61 ± 1.22 *
β–MHC	8 ± 1.06	24 ± 2.04 *	22 ± 1.63 *	39 ± 1.22 *

*—significant difference in comparison with the control group (p < 0.05, Mann–Whitney U-test).