Research Article

The Association among Antioxidant Enzymes, Autoantibodies, and Disease Severity Score in Systemic Lupus Erythematosus: Comparison of Neuropsychiatric and Nonneuropsychiatric Groups

Table 1

Baseline characteristics of the SLE patients and control subjects.

SLEControlγP valueα,β,γ
NPSLEα, n = 15Non-NPSLEβ, n = 17n = 16

Age44.8 ± 12.638.2 ± 11.846.1 ± 12.20.159
Sex0.992
 Female131514
 Male222
Presented with median (IQR)
White blood cell6700 (4900.00, 9500.00)5500 (4500.00, 6850.00)5500 (4425.00, 6000.00)0.44
 Granulocyte (%)70 (59.00, 82.80)68.6 (60.98, 80.23)55.9 (52.00, 68.20)0.20
 Lymphocyte (%)24 (11.60, 26.70)22.85 (12.03, 30.73)34.8 (24.30, 39.00)0.10
 Monocyte (%)5.5 (3.45, 10.10)5.45 (4.03, 7.15)5.9 (4.60, 6.80)0.72
Hemoglobulin11.9 (10.90, 13.20)12.15 (9.90, 13.28)13.45 (12.33, 14.10)0.10
Platelet216 (105.00, 251.00)235.5 (171.75, 338.00)205.5 (180.75, 256.00)0.71
ESR31 (11.00, 42.00)18 (9.25, 36.75)12 (10.00, 1.007)0.38
CRP1.6 (0.52, 17.10)4.97 (0.99, 13.33)0.57 (0.43, 1.27)0.034*
Creatinine0.63 (0.51, 0.86)0.68 (0.54, 0.84)ND0.73
a-dsDNA56.4 (15.00, 199.58)34.95 (2.50, 163.00)ND0.51
a-ro0.5 (0.10, 56.00)0.3 (0.00, 300.00)ND0.25
a-la0.1 (0.00, 0.75)0 (0.00, 300.00)ND0.02*
p-ANCA0 (0.00, 0.00)0 (0.00, 0.10)ND0.18
c-ANCA0 (0.00, 0.10)0.1 (0.00, 0.10)ND0.10
a-U1RNP0.8 (0.10, 1.20)3.65 (1.25, 84.75)ND0.08
a-sm0.1 (0.01, 0.30)0.65 (0.20, 2.90)ND0.29
a-rib p0.2 (0.10, 0.50)0.7 (0.50, 55.00)ND0.37
a-ro600.9 (0.00, 98.00)0.2 (0.1, 300.00)ND0.30
a-β2GP10.01 (0.01, 0.8)2.8 (0.01, 14)ND0.06
a-Cardiolipin G2.3 (0.83, 11)7.2 (1.4, 46)ND0.37
a-Cardiolipin M0.01 (0.01, 0.45)0.01 (0.01, 0.21)ND0.88
Glutathione1.44 (1.14, 1.67)1.2 (0.90, 1.50)1.14 (1.01, 1.29)0.08
SOD-rbc1770.94 (1349.83, 1957.72)1409.97 (1250.2, 1519.54)2983.7 (2204.70, 3281.10)<0.001*
GPX-rbc51.99 (39.20, 73.90)52.62 (36.16, 74.06)57.1 (46.10, 66.40)0.48

SLE, systemic lupus erythematosus; NP, neuropsychiatric; ESR, erythrocyte sediment rate; CRP, c-reactive protein; a-dsDNA, antidouble strand DNA; a-ro, anti-Ro52/60 kDa; a-la, anti-La; p-ANCA, perinuclear anti-neutrophil cytoplasmic antibodies; c-ANCA, cytoplasmic anti-neutrophil cytoplasmic antibodies; anti-U1 ribonucleoprotein; a-sm, anti-Smith; anti-rib p, antiribosomal p; a-ro60, anti-Ro 60 kDa; a- 2GP1, anti- 2 glycoprotein I; a-cardiolipin G, a-cardiolipin IgG; acardiolipin M, a-cardiolipin IgM; SOD-rbc, superoxide dismutase; GPX-rbc, glutathione peroxidase;. IQR, inter-quartile range.
Patients with ( ) or without ( ) neuropsychiatric symptoms or signs related to SLE disease activity. Normal control group. P value was acquired by using one-way ANOVA-Bonferroni test.
Indicates P < 0.05.