Table 2.

Biochemical blood parameters measured in the experimental rats ($\overline{X}\pm S_x$)

Parameters	Groups of experimental animals
	Control	CdO NP exposure
Plasma sulfhydryl (SH) groups, mmol/L	4.85 ± 1.00	5.18 ± 1.02
Reduced glutathione, µmol/L	33.77 ± 4.69	31.88 ± 3.23
Serum catalase, µmol/L	0.72 ± 0.10	0.81 ± 0.03
Serum malondialdehyde (MDA), µmol/L	51.54 ± 9.30	27.32 ± 9.05
Serum ceruloplasmin, mg/%	80.61 ± 1.82	64.82 $\mathbf{\pm }$ 4.11*
SDH activity, number of formazan granules per 50 lymphocytes	583.70 ± 6.24	459.35 $\mathbf{\pm }$ 6.17*
Serum myelin basic protein, ng/mL	2.44 ± 0.43	2.12 ± 0.24

* $p<0.05$, based on the Student’s t-test