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2015 ; 2015
(ä): 920718
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Autoantibodies Affect Brain Density Reduction in Nonneuropsychiatric Systemic
Lupus Erythematosus Patients
#MMPMID26090505
Xu J
; Cheng Y
; Lai A
; Lv Z
; Campbell RA
; Yu H
; Luo C
; Shan B
; Xu L
; Xu X
J Immunol Res
2015[]; 2015
(ä): 920718
PMID26090505
show ga
This study explores the relationship between autoantibodies and brain density
reduction in SLE patients without major neuropsychiatric manifestation (NPSLE).
Ninety-five NPSLE patients without obvious cerebral deficits, as determined by
conventional MRI, as well as 89 control subjects, underwent high-resolution
structural MRI. Whole-brain density of grey matter (GMD) and white matter (WMD)
were calculated for each individual, and correlations between the brain density,
symptom severity, immunosuppressive agent (ISA), and autoantibody levels were
assessed. The GMD and WMD of the SLE group decreased compared to controls. GMD
was negatively associated with SLE activity. The WMD of patients who received ISA
treatment were higher than that in the patients who did not. The WMD of patients
with anticardiolipin (ACL) or anti-SSB/La antibodies was lower than in patients
without these antibodies, while the GMD was lower in patients with anti-SM or
anti-U1RNP antibodies. Thus, obvious brain atrophy can occur very early even
before the development of significant symptoms and specific autoantibodies might
contribute to the reduction of GMD or WMD in NPSLE patients. However, ISAs showed
protective effects in minimizing GMD and WMD reduction. The presence of these
specific autoantibodies might help identify early brain damage in NPSLE patients.