Table 1.

Some characteristics of myocardium in controls and in rats exposed to lead-cadmium combination with and without bioprotection (x ± s.e.).

Myocardium characteristics	Group of rats
	Controls	Exposed to Cd + Pb	Exposed to Cd + Pb along with BPC
Expression of α-MHC, %	80 ± 6	90 ± 7 c	78 ± 5 *
Expression of β-MHC, %	20 ± 5	10 ± 3 c	22 ± 5 *
Active tension of isolated multicellular myocardium preparations at working length corresponding to 0.95 Lmax, mN/mm2	53 ± 3	40 ± 3 c	47 ± 4 *
Passive tension of isolated multicellular myocardium preparations at working length corresponding to 0.95 Lmax, mN/mm2	2.0 ± 0.3	6.5 ± 0.5 c	2.5 ± 0.3 *

Note: ^c – statistically significant difference from the control group, * - statistically significant difference from the group exposed to Cd + Pb.