Table 4.

Correlations between lead-induced changes of the levels of lead, MDA, and LPH and the changes of the levels of essential metals, activities of antioxidant enzymes, and the levels of oxidative stress markers and ceruloplasmin. S: serum; E: erythrocyte; L: leukocyte; D: a difference between the levels at baseline and at the end of the study period.

	B-Pb-D (μg/dl)	S-MDA-D (μmol/l)	S-LPH-D (μmol/l)
Ca-D (mg/dl)	0.18	0.18	0.25
Mg-D (mg/dl)	0.27	0.14	0.08
Se-D (μg/dl)	0.11	−0.09	0.11
Fe-D (μg/dl)	0.04	0.27	−0.07
Zn-D (μg/dl)	0.07	−0.33	−0.29
Cu-D (μg/dl)	0.17	−0.24	−0.24
S-SOD-D (NU/ml)	−0.08	−0.11	−0.05
E-SOD-D (NU/mg Hb)	0.13	0.15	0.01
L-SOD-D (NU/mg P)	−0.58	−0.29	−0.46
L-CuZn-SOD-D (NU/mg P)	−0.15	−0.34	−0.37
L-Mn-SOD-D (NU/mg P)	−0.55	0.07	−0.07
E-CAT-D (kU/g Hb)	−0.18	−0.08	−0.04
L-CAT-D (U/mg P)	0.01	−0.04	−0.15
S-MDA-D (μmol/l)	0.03	1.00	0.78
S-LPH-D (μmol/l)	0.14	0.78	1.00
E-LPS-D (RF/g Hb)	0.18	0.05	0.14
S-LPS-D (RF/ml)	0.03	0.47	0.42
S-CER-D (mg/dl)	0.07	0.24	0.17