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Impairment of white matter microstructure and structural network in patients with systemic lupus erythematosus

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机构: [1]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China [2]Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China [3]Affiliated Mental Health Center & Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
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关键词: Systemic lupus erythematosus Diffusion tensor imaging Fractional anisotropy White matter structure network

摘要:
The study aimed to investigate the damage of white matter (WM) microstructure and structural network in patients with systemic lupus erythematosus (SLE) using diffusion tensor imaging.Tract-based spatial statistics (TBSS) were used to compare the difference in WM fractional anisotropy (FA) between SLE and HCs groups. The differences in WM networks between groups are compared using graph theory. The correlation between clinical data and SLE abnormal WM structure and network was analysed.The sample included 140 SLE patients and 111 healthy controls (HCs). Due to data missing, excessive head movement amplitude, failure of quality control and other reasons, 127 cases of SLE (103 females, mean age 29.84 years (SD 7.00), median years of education 12.00, interquartile range(9.00,15.00) and a median course of disease (month) 12.00, interquartile range (3.00,24.00)) and 102 cases of HCs (76 females, mean age 30.63 years (SD 7.24), median years of education 15.00, interquartile range(12.00,16.00)) were finally included in the study. The FA values of 5 clusters involving the right retrolenticular part of the internal capsule (RLIC), the genu of corpus callosum (GCC), the body of corpus callosum, the splenium of corpus callosum (SCC), were significantly lower in the SLE group compared to the HCs (P < 0.05 with threshold-free cluster enhancement corrected). The SLEDAI showed a negative correlation with FA in GCC, and HAMD showed a negative correlation with FA in SCC and right RLIC (P < 0.05). Regarding network indicators, Cp, Eglob, and Eloc were significantly decreased, while Lp was significantly increased in the SLE group. The degree centrality (DC) of 6 brain regions and the Enodal of 17 regions were significantly lower in the SLE group. SLEDAI showed a negative correlation with the area under the curve (AUC) of DC and Enodal in the left inferior frontal gyrus triangular (q < 0.05 with false discovery rate corrected), while MMSE showed a positive correlation with the Enodal in the left hippocampus (P < 0.05).The study concludes that changes in WM microstructure and its structural network may contribute to the development of severe neuropsychiatric symptoms in SLE patients. These changes may be the basis of brain damage that leads to the development of NPSLE from SLE without major neuropsychiatric manifestations.Copyright © 2024. Published by Elsevier Inc.

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大类 | 2 区 医学
小类 | 2 区 风湿病学
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第一作者机构: [1]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
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通讯机构: [1]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China [2]Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China [3]Affiliated Mental Health Center & Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China [*1]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, No. 295 Xichang Road,Kunming, 650032, China. [*2]Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, No. 295 Xichang Road, Kunming, 650032, China.Affiliated Mental Health Center & Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, 305 Tianmushan Road, Hangzhou, 310058, China.
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