Journal
JOURNAL OF NEUROIMMUNOLOGY
Volume 144, Issue 1-2, Pages 143-147Publisher
ELSEVIER
DOI: 10.1016/j.jneuroim.2003.08.043
Keywords
myasthenia gravis; Fc gamma R; polymorphism
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Myasthenia gravis (MG) susceptibility is partially determined by allelic heterogeneity of immune-modulatory genes. IgG receptors (FcgammaR) link the humoral and cellular branches of the immune system, and regulate immune responses and inflammation. Three FcgammaR subclasses (FcgammaRIIa, FcgammaRIIIa, and FcgammaRIIIb) exhibit functional polymorphisms, which affect efficiency of FcgammaR-mediated functions. FcgammaRIIa genotypes, but not FcgammaRIIIa and FcgammaRIIIb genotypes, were differentially distributed among 107 MG patients as compared to 239 healthy controls (Pmuch less than0.01), with a relative increase of the FcgammaRIIa-R/R131 genotype (Odds ratio 2.4, 95% confidence interval 1.4-3.9). These data suggest that the FcgammaRIIa-R/R131 genotype is a marker for susceptibility to MG. (C) 2003 Elsevier B.V. All rights reserved.
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