Detection of oligoclonal IgG bands in cerebrospinal fluid and serum: comparison between commercial immunofixation method and home-made affinity immunoblotting method and evaluation of interobserver agreement
Result description
Background: We compared two different agarose isoelectric focusing methods for detection of oligoclonal IgG bands in cerebrospinal fluid and serum: commercial method with immunofixation (Sebia) and home-made method using Multiphor II apparatus followed by affinity immunoblotting. Interobserver agreement for both methods was tested concerning the presence of intrathecal IgG synthesis, the detailed isoelectric focusing pattern type, the number of CSF-restricted oligoclonal IgG bands, and the number of oligoclonal IgG bands in CSF and in serum. Findings: Using kappa statistics for evaluation of agreement, we found there was very good agreement concerning the presence of intrathecal IgG synthesis (kappa 0.870 to 1.000 between methods, and 0.947 and 0.920 between observers, respectively, representing 0 to 5 out of 114 samples classified differently). The agreement was less pronounced when international consensus classification of isoelectric focusing patterns into 5 different types was take
Keywords
oligoclonal IgG bandsdifferent agarose isoelectric focusing methodscerebrospinal fluid
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Detection of oligoclonal IgG bands in cerebrospinal fluid and serum: comparison between commercial immunofixation method and home-made affinity immunoblotting method and evaluation of interobserver agreement
Original language description
Background: We compared two different agarose isoelectric focusing methods for detection of oligoclonal IgG bands in cerebrospinal fluid and serum: commercial method with immunofixation (Sebia) and home-made method using Multiphor II apparatus followed by affinity immunoblotting. Interobserver agreement for both methods was tested concerning the presence of intrathecal IgG synthesis, the detailed isoelectric focusing pattern type, the number of CSF-restricted oligoclonal IgG bands, and the number of oligoclonal IgG bands in CSF and in serum. Findings: Using kappa statistics for evaluation of agreement, we found there was very good agreement concerning the presence of intrathecal IgG synthesis (kappa 0.870 to 1.000 between methods, and 0.947 and 0.920 between observers, respectively, representing 0 to 5 out of 114 samples classified differently). The agreement was less pronounced when international consensus classification of isoelectric focusing patterns into 5 different types was take
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CE - Biochemistry
OECD FORD branch
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Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Klinická biochemie a metabolismus
ISSN
1210-7921
e-ISSN
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Volume of the periodical
19/40
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
5
Pages from-to
229-233
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CE - Biochemistry
Year of implementation
2011