Diagnosis of IgG4-Related Hypertrophic Pachymeningitis (IgG4-HP) relies on meningeal biopsies, because cerebrospinal fluid (CSF) diagnostic biomarkers are lacking. Here, we determined whether IgG4 intrathecal production could distinguish IgG4-HP from other disorders presenting with HP (OHP). In patients with IgG4-HP, the median CSF IgG4 concentration, IgG4 Index and IgG4Loc were significantly higher than in both controls and OHP. CSF IgG4 levels higher than 2.27mg/dL identified 100% of IgG4-HP and 5% of OHP. An IgG4Loc cut-off of 0.47 identified 100% of IgG4-HP and no cases of OHP. Our results support CSF IgG4 quantification and IgG4 Indices as alternatives to meningeal biopsy for the diagnosis of IgG4-HP when this procedure is contraindicated or uninformative.
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http://dx.doi.org/10.1016/j.jneuroim.2013.10.008 | DOI Listing |
Front Immunol
January 2025
Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) caused by pathogenic immunoglobulin G antibodies to myelin oligodendrocyte glycoprotein is a rare demyelinating disease of the central nerve system (CNS). The clinical phenotypes of MOGAD include acute disseminated encephalomyelitis, optic neuritis, and transverse myelitis. At present, the mechanism underlying the disease is unknown.
View Article and Find Full Text PDFClin Chim Acta
January 2025
Department of Neurology, Huashan Hospital, Fudan University and Institute of Neurology, Fudan University, National Center for Neurological Disorders, Shanghai, China. Electronic address:
Background: CSF (cerebrospinal fluid) oligoclonal immunoglobulin G bands (IgG-OCBs) analysis plays a crucial role in diagnosis of various neurological disorders. However, the clinical significance of mirror pattern bands remains unclear, and their precise application is not well understood.
Methods: We retrospectively reviewed a total of 7597 IgG-OCB records detected using isoelectric focusing from May 2020 and August 2023 at Huashan Hospital.
BMC Neurol
January 2025
Department of Neurology, The First Affiliated Hospital of Zhengzhou University, 1 East Jianshe Road, Zhengzhou, China.
Background: Awareness of the characteristics of glial fibrillary acidic protein autoantibody (GFAP-IgG) associated myelitis facilitates early diagnosis and treatment. We explored features in GFAP-IgG myelitis and compared them with those in myelitis associated with aquaporin-4 IgG (AQP4-IgG) and myelin oligodendrocyte glycoprotein IgG (MOG-IgG).
Methods: We retrospectively reviewed data from patients with GFAP-IgG myelitis at the First Affiliated Hospital of Zhengzhou University and Henan Children's Hospital from May 2018 to May 2023.
Anal Methods
January 2025
Department of Biochemistry and Molecular Biology, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul 34450, Turkey.
J Vet Intern Med
December 2024
Division of Clinical Neurology, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
Background: In dogs with idiopathic epilepsy (IE), 33% develop resistance to conventional anti-seizure medication (ASM) despite adequate treatment. In human medicine, an immune-mediated etiology is suspected in a subset of ASM-resistant patients with epilepsy and cerebrospinal fluid (CSF)-specific immunoglobulin G (IgG)-type oligoclonal bands (OCBs) have been detected. In dogs, cases of autoimmune encephalitis recently were reported.
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