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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/14621
Title: Diagnostic utility of NMO/AQP4-IgG in evaluating CNS inflammatory disease in Thai patients
Authors: Metha Apiwattanakul
Thanin Asawavichienjinda
Teeratorn Pulkes
Tasanee Tantirittisak
Thiravat Hemachudha
Erika S. Horta
Sarah M. Jenkins
Sean J. Pittock
Prasat Neurological Institute
Chulalongkorn University
Mahidol University
Mayo Medical School
Keywords: Medicine;Neuroscience
Issue Date: 15-Sep-2012
Citation: Journal of the Neurological Sciences. Vol.320, No.1-2 (2012), 118-120
Abstract: Epidemiological studies in Thailand have reported that inflammatory demyelinating diseases (IDDs) commonly affect the optic nerve and spinal cord. We investigated the diagnostic utility of aquaporin ( AQP)-4-IgG testing in 31 consecutive patients evaluated for CNS IDDs in 3 academic Thai hospital neurology clinics between February 2008 and January 2009. Patients were classified into 3 clinical diagnostic groups: Neuromyelitis optica (NMO, n = 10) multiple sclerosis (MS, n = 5) and unclassified IDD (n = 16). All sera were tested blindly by cell binding (Euroimmun) assay (CBA). Sera were also tested by indirect immunofluorescence assay (IFA) and ELISA (RSR/Kronus). After initial screening by CBA, AQP4-IgG was detected in 6 NMO patients (60%); 3 of the 4 seronegative cases were receiving immunosuppressants. AQP4-IgG was detected in 13 unclassified IDD cases (81%), but in no MS cases. Cell binding assay and ELISA were more sensitive than IFA (p = 0.0004). The 81% seropositivity rate in unclassified patients suggests that AQP4 autoimmunity accounts for a significant proportion of Thai CNS inflammatory demyelinating disease, especially those with optic neuritis or transverse myelitis, with or without abnormal brain MRI, in whom a specific diagnosis or clear-cut treatment approach is unclear. © 2012 Elsevier B.V.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84864620668&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/14621
ISSN: 18785883
0022510X
Appears in Collections:Scopus 2011-2015

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