Lack of Association of the rs11655081 ARSG Gene with Blepharospasm

J Mol Neurosci. 2019 Mar;67(3):472-476. doi: 10.1007/s12031-018-1255-3. Epub 2019 Jan 18.

Abstract

Blepharospasm (BSP) is a sub-phenotype of focal dystonia. A few genetic risk factors are considered to be implicated in the risk of developing BSP. There is recent evidence, based on results from GWAS and meta-analyses, to suggest that arylsulfatase G (ARSG), and more specifically rs11655081, is implicated in focal dystonia. The aim of the present study was to evaluate the effect of rs11655081 ARSG on BSP. A Greek cohort, which consisted of 206 BSP patients and an equal number of healthy controls, was genotyped for rs11655081. Only a marginal trend for the association between rs11655081 and the risk of BSP was found in the over-dominant model of inheritance [odds ratio, OR (95% confidence interval, CI): 0.64 (0.38-1.07), p = 0.088]. It is rather unlikely that rs11655081 across ARSG is a major genetic risk contributor for BSP.

Keywords: ARSG; Blepharospasm; Focal dystonia; Polymorphism; SNP.

MeSH terms

  • Arylsulfatases / genetics*
  • Blepharospasm / genetics*
  • Humans
  • Polymorphism, Single Nucleotide*

Substances

  • ARSG protein, human
  • Arylsulfatases