The Effect of a Short-Term Exposure to Lead on the Levels of Essential Metal Ions, Selected Proteins Related to Them, and Oxidative Stress Parameters in Humans

Table 3

The activities of antioxidant enzymes, the levels of oxidative stress markers and ceruloplasmin. S: serum; E: erythrocyte; L: leukocyte.

	Before exposure		After exposure		Relative change (%)	value
	Mean	SD	Mean	SD
S-SOD (NU/ml)	16.84	2.47	17.42	2.33	3	0.238
E-SOD (NU/mg Hb)	178.69	20.18	175.77	24.23	−2	0.535
L-SOD (NU/mg P)	16.80	1.94	16.89	3.97	1	0.894
L-CuZn-SOD (NU/mg P)	11.14	2.08	11.76	3.35	6	0.373
L-Mn-SOD (NU/mg P)	5.66	1.86	5.21	3.50	−8	0.487
E-CAT (kU/g Hb)	371.27	72.38	393.73	81.89	6	0.200
L-CAT (U/mg P)	38.18	10.61	43.66	14.51	14	0.078
S-MDA (μmol/l)	2.12	0.57	2.37	0.72	12	0.097
S-LPH (μmol/l)	4.72	3.19	6.90	4.66	46	0.005
S-LPS (RF/ml)	1076.05	152.85	1140.59	172.47	6	0.107
E-LPS (RF/g Hb)	2354.00	538.19	2037.71	482.85	−13	0.010
S-CER (mg/dl)	39.43	5.95	40.62	6.83	3	0.324