Research Article

Oxidative Stress Markers and Their Dynamic Changes in Patients after Acute Ischemic Stroke

Table 2

Levels of oxidative stress markers and activities of antioxidant enzymes in experimental groups of ischemic stroke patients (A, B, C) and healthy controls.

Parameter (units)Co A B C

Lipid peroxides in plasma
(nmol/mL)
43.48 ± 2.9855.09 ± 3.5543.62 ± 3.7244.37 ± 5.47
8-Isoprostanes in urine
(ng/mmol creatinin)
32.57 ± 4.4068.69 ± 10.9343.72 ± 8.6543.89 ± 12.70
Protein carbonyls in plasma
(nmol/mg protein)
0.25 ± 0.040.22 ± 0.030.28 ± 0.040.20 ± 0.07
TEAC in plasma
(mmol/L)
1.49 ± 0.131.64 ± 0.121.47 ± 0.172.77 ± 0.17
PON1 in serum
(U/mL)
104.07 ± 3.0486.45 ± 3.5785.86 ± 4.61102.39 ± 7.95
SOD in hemolysates
(U/mg Hb)
661.44 ± 7.15697.62 ± 8.95750.45 ± 9.72747.41 ± 17.27
Catalase in hemolysates
(µkat/g Hb)
3.61 ± 0.174.92 ± 0.176.56 ± 0.244.85 ± 0.21
GPx in hemolysates
(U/g Hb)
24.83 ± 1.2436.16 ± 4.9126.28 ± 1.5123.55 ± 2.60

Data are presented as means ± SEM. Co: control individuals; A: patients within 24 h after AIS, B: patients at 7-day follow-up, and C: patients at 3-month follow-up; TEAC: trolox equivalent antioxidant capacity of plasma; PON1: paraoxonase activity; SOD: superoxide dismutase activity; GPx: glutathione peroxidase activity; Hb: hemoglobin. < 0.05; < 0.01; < 0.001 versus controls.