Association of Single Nucleotide Polymorphism in Chromosome 11 with Autism Spectrum Disorder

Abstract

Several genetic loci in chromosomes 11 and 15 have recently been associated with non-syndromic autism spectrum disorder (ASD) in populations from North America and Europe. The aim of the present study was to investigate whether such an association exists in a Latvian population. Ninety-five patients with ASD in the age range 3–20 years (mean age 8 years, SD 3.18) participated in the study. The control group consisted of 161 healthy, non-related individuals without ASD randomly selected from the Latvian Genome Database. Four single nucleotide polymorphisms (SNPs) — rs11212733, SNP rs1394119, rs2421826, rs1454985 — were genotyped by the TaqMan method. Allele frequency differences between ASD patients and control subjects were compared for each SNP using a standard chi-square test with Bonferroni correction. The level of statistical significance was set at 0.05 for nominal association. Only the genetic marker rs11212733, localised on the long arm of chromosome 11 in locus 22.3, was found to be strongly associated with the ASD patient group (χ2 6.982, Padjusted 0.033, odds ratio 1.625). Our data demonstrating a significant relationship between the SNP rs11212733 and the development of ASD in a Latvian population suggest that it is not a population-specific relationship. Thus, future studies focusing on the DDX10 gene and related genetic loci are needed.

Scoping Review: Autism Research in Baltic States—What Is Known and What Is Still To Be Studied

“…There were two genetic studies that concentrated on possible genetic causes of autism (Pentjuss et al 2013;Bauze et al 2014). And two studies concentrated on biological differences in autistic children (Kevere et al 2009;Bauze et al 2013a).…”

“…And two studies concentrated on biological differences in autistic children (Kevere et al 2009;Bauze et al 2013a). One study compared frequency of hyperhomocysteinemia between schizophrenia and autism patients with results revealing that hyperhomocysteinemia is more common in autism than schizophrenia (Bauze et al 2014). According to Guo et al (2009) (n=15) irrelevant ( congenital condition with an abnormally high level of homocysteine in the blood.…”