Detection of oligoclonal IgA in cerebrospinal fluid samples by an isoelectric focusing procedure
- 1 January 1994
- journal article
- research article
- Published by Springer Nature in Zeitschrift für Neurologie
- Vol. 241 (5) , 315-319
- https://doi.org/10.1007/bf00868439
Abstract
An isoelectric focusing procedure for the detection of oligoclonal IgA in cerebrospinal fluid (CSF) samples is presented. CSF IgA bands were found in 69% of patients with various inflammatory neurological diseases, in 22% of patients with other neurological diseases, but in none of the patients with non-neurological diseases. In patients with inflammatory neurological diseases we examined the relationship between an intrathecal synthesis of oligoclonal IgA and an intrathecal IgA synthesis as proved by a formula recently described by Reiber and Felgenhauer: 83% of patients with an intrathecal IgA synthesis according to the formula of Reiber and Felgenhauer also showed CSF IgA bands whereas 59% of patients without an intrathecal IgA synthesis displayed an intrathecal synthesis of oligoclonal IgA. Seventeen percent of patients with inflammatory neurological diseases were characterized by an intrathecal synthesis of oligoclonal IgA but did not show either an intrathecal IgA synthesis or an intrathecal synthesis of oligoclonal IgG, the detection of oligoclonal IgA therefore being the only evidence of an intrathecal humoral immune response in these patients.Keywords
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