Lupus & antiphospholipid syndrome

Topological structural characteristics in patients with systemic lupus erythematosus with and without neuropsychiatric symptoms

Lupus Sci MedPublished Cross-sectional study

Authors' conclusion

Structural networks in patients SLE may be altered at both global and local levels, with more pronounced changes observed in NPSLE, notably affecting the default mode and sensorimotor networks.

Study context

Population
Patients with systemic lupus erythematosus (SLE) with and without neuropsychiatric symptoms and age-matched healthy controls (HCs)50 SLE patients
Participants
21 / 29 / 32
Exposure
NPSLE vs non-NPSLE vs age-matched HCs
  • non-NPSLEn = 21
  • NPSLEn = 29
  • HCsn = 32reference
Outcome
Topological characteristics of individual structural brain networks (global metrics and local network properties)
Methodological detailsprospective recruitment, age-matched healthy controls, MRI diffusion tensor imaging, support vector classification
  • Prospective recruitment
  • Age-matched healthy controls
  • MRI diffusion tensor imaging
  • Support vector classification

Main finding

As reported in the abstract

Structural network topology
  • Both non-NPSLE and NPSLE showed significant global and local topological alterations vs HCs
  • Changes more pronounced in NPSLE, particularly affecting the default mode and sensorimotor networks

Observational data: associations, not effects.

Further findings

Clinical correlations

Topological changes correlated with lesion burdens, disease duration and SLICC/ACR DI
  • Partial correlation

Differentiation of non-NPSLE vs NPSLE (support vector classification)

Accuracy
87%

Original publication

Topological structural characteristics in patients with systemic lupus erythematosus with and without neuropsychiatric symptoms. Lupus Sci Med. Published 11 September 2024. doi:10.1136/lupus-2024-001221

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