Authors: Ewa GindzienskaSieskiewicz Piotr Adrian Klimiuk Dariusz Gabriel Kisiel Andrzej Gindzienski Stanislaw Sierakowski
Publish Date: 2006/08/04
Volume: 26, Issue: 5, Pages: 685-690
Abstract
The objective of this study was to determine whether galactosylation of immunoglobulin G IgG in patients with rheumatoid arthritis RA correlates with severity and duration of illness Serum IgG glycosylation from 50 patients with RA in comparison with 30 healthy controls was analyzed IgG from sera was isolated and monosaccharide composition was determined by means of gas chromatography Ratio of galactose to mannose content was calculated Patients were divided into groups according to three different criteria disease duration severity of RA disease activity score index and radiological degree of advancement of illness according to Steinbrocker In patients with RA significant decrease p001 of galactose ratio was observed in comparison with healthy control In patients with long duration of RA more than 15 years significant decrease of galactose p005 ratio in comparison with patients who have had arthritis for less then 5 years was observed For the group of patients with severe RA we found reduction of galactose p0001 ratio vs the group of patients in remission For those patients who had radiological stage IV according to Steinbrocker IgG galactose p001 content per oligosaccharide chain were also more decreased than in those patients who had stage I RA Decreased galactosylation and of IgG in RA was observed The lack of this carbohydrate component of IgG correlates with severity and duration of RA and could be used in monitoring the progression in early arthritis
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