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Antibodies against light neurofilaments in multiple sclerosis patients

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Bartoš A, Fialová L, Soukupová J, Kukal J, Malbohan I, Piťha J. Antibodies against light neurofilaments in multiple sclerosis patients.

Acta Neurol Scand 2007: 116: 100–107. © 2007 The Authors Journal compilation © 2007 Blackwell Munksgaard. Objectives – 

Axonal damage in multiple sclerosis (MS) may be reflected by antibodies against axon-specific proteins – the light subunit of neurofilaments (NFL). Materials and methods – 

The serum and cerebrospinal fluid obtained from 58 MS patients, 24 normal controls (CN), 49 control patients with miscellaneous diseases (CD) and 31 patients with neurodegenerative disorders (CDEG) were tested for both immunoglobulin G and M antibodies against NFL, using an ELISA. Results – 

Intrathecal IgG antibodies to NFL were elevated in MS patients compared with that in CD patients (P = 0.001) and were not related to clinical variables. No differences in IgM anti-NFL levels were found between the MS and CN/CD groups. IgM to NFL was higher in the CDEG group than in either the CD group or even the MS group (P < 0.0005). Conclusions – 

Intrathecal IgM or IgG antibodies to NFL are not useful surrogate markers for axonal damage or disease subtypes in MS.

Keywords: antibody; axonal damage; cerebrospinal fluid; intrathecal synthesis; multiple sclerosis; neurofilament

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1600-0404.2006.00794.x

Affiliations: 1: Department of Neurology, Third Faculty of Medicine, Charles University in Prague, University Hospital Královské Vinohrady, Prague, Czech Republic 2: Institute of Medical Biochemistry, First Faculty of Medicine, Charles University in Prague, Czech Republic 3: Institute of Clinical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University in Prague, Czech Republic 4: Department of Computing and Control Engineering, Institute of Chemical Technology, Prague, Czech Republic

Publication date: August 1, 2007

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