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Background: Multiple sclerosis (MS) is a chronic inflammatory and demyelinating disease of the CNS. An intrathecal IgM synthesis is associated with a more rapid progression of MS and the intrathecal immune response to measles -, rubella -and varicella zoster virus (MRZR) which, if present, increases the likelihood of a diagnosis of MS in adults.
Objective: To evaluate the frequency of an intrathecal IgM synthesis and MRZR in children with MS. MethodsChildren with MS and a data set including clinical and treatment history, MRI at onset, in addition to a CSF analysis, and determination of antibody index (AI) of measles, rubella, and zoster antibodies, were eligible. The presence of an intrathecal IgM synthesis and/or a positive MRZ reaction were compared to biomarkers of a more progressive disease course.
Results: In 75 children with MS, OCBs were present in 93.3 %). 49,2 % experienced their first relapse within 6 months. 50.7 % had a total lesion load of more than 10 lesions in the first brain MRI. Spinal lesions were identified in 64 %. 23.5 % had a positive MRZR and 40.3 % an intrathecal IgM synthesis. No significant associations were detected between the presence of an intrathecal IgM synthesis and MRZR and parameters including the relapse rate in the first two years.
Conclusion: An intrathecal IgM synthesis and a positive MRZR are found in a subset of MS children but are not associated with markers associated with a poor prognosis.
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http://dx.doi.org/10.1016/j.ejpn.2024.04.005 | DOI Listing |
Life (Basel)
August 2025
Department of Neurology, University Hospital of Ulm, Oberer Eselsberg 45, 89081 Ulm, Germany.
Encephalitis is a potentially life-threatening condition with long-term neurological sequelae. However, data on early clinical, demographic, and diagnostic predictors of functional outcomes remain limited. We performed a retrospective monocentric study including 98 patients diagnosed with infectious encephalitis of various etiologies treated in the University Hospital Ulm between January 2014 and December 2024.
View Article and Find Full Text PDFNeurol Res Pract
August 2025
Department of Neurology, Hannover Medical School, Hannover, Germany.
Background: Kappa free light chains (KFLC), a byproduct of immunoglobulin (Ig) synthesis by B-lineage cells, can serve as an indicator for inflammatory activity. In multiple sclerosis (MS), especially the intrathecal KFLC production has gained increasing importance as a biomarker for central nervous system (CNS) inflammation and was included into the proposed 2024 revision of the McDonald criteria. In contrast, studies investigating the significance of KFLC in serum and the effects of disease-modifying therapies (DMT) on KFLC serum concentration in MS are rare.
View Article and Find Full Text PDFTher Adv Neurol Disord
August 2025
Department of Neurology, Neurocritical Care, and Neurorehabilitation, Christian Doppler University Hospital, Paracelsus Medical University and Center for Cognitive Neuroscience, member of European Reference Network EpiCARE, Ignaz-Harrer-Straße 79, Salzburg 5020, Austria.
Background: Cladribine (CLAD), an immune reconstitution therapy for active multiple sclerosis (MS), can reduce intrathecal antibody production.
Objectives: In this study, we investigated the long-term impact of oral CLAD on protective antibody levels, essential for preventing infections and immune defense.
Design: Observational long-term study including a cohort of 15 CLAD-treated MS patients.
Ther Adv Neurol Disord
July 2025
Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Background: Cladribine, an oral prodrug, penetrates the blood-brain barrier, impacting biomarkers of disease progression within the central nervous system.
Objectives: Describe disease activity in cladribine tablets (CladT)-treated people with highly active relapsing multiple sclerosis (pwRMS) using clinical outcomes and biomarkers.
Design: MAGNIFY-MS was an open-label, single-arm, phase IV trial with four sub-studies.
Int J Mol Sci
July 2025
Department of Immunology, Hospital Universitario Ramón y Cajal, Red Española de Esclerosis Múltiple (REEM), Red de Enfermedades Inflamatorias (REI), IRYCIS, Universidad de Alcalá, 28034 Madrid, Spain.
The combined use of serum and CSF biomarkers for prognostic stratification in multiple sclerosis (MS) remains underexplored. This multicenter observational study investigated associations between serum neurofilament light chain (sNfL), glial fibrillary acidic protein (sGFAP), and CSF lipid-specific IgM oligoclonal bands (LS-OCMB) with different forms of disability worsening, such as relapse-associated worsening (RAW), active progression independent of relapse activity (aPIRA), and non-active PIRA (naPIRA). A total of 535 patients with MS were included, all sampled within one year of disease onset.
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