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  • Title: Association Analysis of ANRIL Polymorphisms and Haplotypes with Autism Spectrum Disorders.
    Author: Safa A, Noroozi R, Taheri M, Ghafouri-Fard S.
    Journal: J Mol Neurosci; 2021 Jan; 71(1):187-192. PubMed ID: 32623644.
    Abstract:
    Autism spectrum disorder (ASD) has been shown to have a complex inheritance. Several single-nucleotide polymorphisms (SNPs) have been shown to be associated with risk of this neurodevelopmental disorder. In the current study, we genotyped four SNPs in a genomic hotspot for human disorders. The selected SNPs were located in adjacency of the antisense noncoding RNA in the INK4 locus (ANRIL) and have been shown to be associated with a number of human disorders. Genotyping was performed in 420 ASD cases and 420 normally developed children. After correction of P values for multiple comparisons, there was no significant difference in frequencies of rs1333045, rs1333048, rs4977574, and rs10757278 alleles, genotypes, or haplotypes between ASD children and children with normal development. However, one estimated haplotype (T A A A haplotype corresponding to rs1333045, rs1333048, rs4977574, and rs10757278 SNPs, respectively) tended to be more prevalent among cases compared with controls (OR (95% CI) = 1.77 (1.19-2.64), adjusted P value = 0.07). Besides, the T A G G tended to be less common among ASD cases compared with controls (OR (95% CI) = 0.64 (0.47-0.87), adjusted P value = 0.07). Although we could not detect significant difference in alleles, genotypes, or haplotypes frequencies between cases and controls, the trend toward association between two haplotypes and ASD risk implies that there might be a putative causative variant in the mentioned haplotypes whose association with ASD could be determined in larger cohorts of patients.
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