No association between FCGR2A and FCGR3A polymorphisms in Guillain-Barré Syndrome in a Brazilian population

J Neuroimmunol. 2016 Sep 15:298:160-4. doi: 10.1016/j.jneuroim.2016.07.020. Epub 2016 Jul 27.

Abstract

The pathogenesis of Guillain-Barré Syndrome (GBS) is not entirely understood, but includes infection-induced aberrant immune responses. Genetic polymorphisms in Fc gamma receptor genes (FCGR) have been associated with GBS. We assessed whether polymorphisms rs1801274 in FCGR2A and rs396991 in FCGR3A were associated with GBS in a Brazilian population. We genotyped 141 GBS cases and 364 healthy controls from Brazil for both polymorphisms. The FCGR genotypes and alleles frequencies did not differ significantly between GBS and controls. In addition, there was no genetic association with either severity or clinical outcomes. We conclude that these FCGR polymorphisms are not associated with susceptibility to Guillain-Barré Syndrome in this Brazilian population.

Keywords: FCGR; Genetics; Guillain-Barré Syndrome; Polymorphism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antibodies / blood
  • Brazil
  • Female
  • Gangliosides / immunology
  • Genetic Association Studies
  • Genotype
  • Guillain-Barre Syndrome / blood
  • Guillain-Barre Syndrome / genetics*
  • Guillain-Barre Syndrome / metabolism
  • Humans
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide / genetics*
  • Receptors, IgG / genetics*
  • Severity of Illness Index

Substances

  • Antibodies
  • FCGR2A protein, human
  • FCGR3A protein, human
  • Gangliosides
  • Receptors, IgG