guest ::
| Home > Publications Database > Cognitive Deficits in Anti-LGI1 Encephalitis Are Linked to Immunotherapy-Resistant White Matter Network Changes. |
| Home > Publications Database > Cognitive Deficits in Anti-LGI1 Encephalitis Are Linked to Immunotherapy-Resistant White Matter Network Changes. |
| Journal Article | DZNE-2025-00284 |
; ; ; ; ; ; ; ; ; ; ;
2025
Wolters Kluwer
Philadelphia, Pa.
This record in other databases: 
Please use a persistent id in citations: doi:10.1212/NXI.0000000000200360
Abstract: Cognitive deficits represent a major long-term complication of anti-leucine-rich, glioma-inactivated 1 encephalitis (LGI1-E). Although severely affecting patient outcomes, the structural brain changes underlying these deficits remain poorly understood. In this study, we hypothesized a link between white matter (WM) networks and cognitive outcomes in LGI1-E.In this cross-sectional study, we combined clinical assessments, comprehensive neuropsychological testing, diffusion tensor MRI, probabilistic WM tractography, and computational network analysis in patients with LGI1-E referred to Charité-Universitätsmedizin Berlin. Healthy individuals were recruited as control participants and matched to patients for age and sex with logistic regression propensity scores.Twenty-five patients with LGI1-E (mean age = 63 ± 12 years, 76% male) and 25 healthy controls were enrolled. Eighty-eight percent of patients presented persistent cognitive symptoms at postacute follow-up (median: 12 months from onset, interquartile range: 6-23 months)-despite treatment with immunotherapy and good overall recovery (modified Rankin Scale [mRS] score at peak illness vs postacute: z = -4.1, p < 0.001, median mRS score at postacute visit: 1). Neuroimaging revealed that WM networks in LGI1-E are characterized by (1) a systematic reduction in whole-brain connectivity (t = -2.16, p = 0.036, d = -0.61), (2) a cortico-subcortical hypoconnectivity cluster affecting both limbic and extralimbic brain systems, and (3) a 'topological reorganization' marked by a bidirectional shift in the relative importance of individual brain regions in the WM network. The extent of this WM reorganization was strongly associated with long-term deficits of verbal memory (r = -0.56), attention (r = -0.55), and executive functions (r = -0.60, all pFDR = 0.017).Although traditionally viewed as a form of limbic encephalitis, our study characterizes LGI1-E as a 'network disorder' that affects the whole brain. Structural reorganization of WM networks was linked to long-term and multidomain cognitive impairment, which was not prevented by immunotherapy. These findings highlight the need for closer monitoring and improved treatment strategies to mitigate long-term cognitive impairment in LGI1-E.
Keyword(s): Humans (MeSH) ; Male (MeSH) ; Female (MeSH) ; Middle Aged (MeSH) ; White Matter: diagnostic imaging (MeSH) ; White Matter: pathology (MeSH) ; Cognitive Dysfunction: etiology (MeSH) ; Cognitive Dysfunction: physiopathology (MeSH) ; Cognitive Dysfunction: diagnostic imaging (MeSH) ; Aged (MeSH) ; Cross-Sectional Studies (MeSH) ; Immunotherapy: methods (MeSH) ; Nerve Net: diagnostic imaging (MeSH) ; Nerve Net: physiopathology (MeSH) ; Nerve Net: pathology (MeSH) ; Encephalitis: diagnostic imaging (MeSH) ; Encephalitis: immunology (MeSH) ; Intracellular Signaling Peptides and Proteins (MeSH) ; Autoantibodies: blood (MeSH) ; Diffusion Tensor Imaging (MeSH) ; LGI1 protein, human ; anti-leucine-rich glioma-inactivated 1 autoantibody ; Intracellular Signaling Peptides and Proteins ; Autoantibodies
; 
; 
; 
; Article Processing Charges ; Clarivate Analytics Master Journal List ; Current Contents - Clinical Medicine ; DOAJ Seal ; Essential Science Indicators ; Fees ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
PDF (PDFA)