Genome-Wide Association Study for Autism Spectrum Disorder in Taiwanese Han Population.

Bibliographic Details
Title: Genome-Wide Association Study for Autism Spectrum Disorder in Taiwanese Han Population.
Authors: Po-Hsiu Kuo, Li-Chung Chuang, Mei-Hsin Su, Chia-Hsiang Chen, Chien-Hsiun Chen, Jer-Yuarn Wu, Chung-Jen Yen, Yu-Yu Wu, Shih-Kai Liu, Miao-Chun Chou, Wen-Jiun Chou, Yen-Nan Chiu, Wen-Che Tsai, Susan Shur-Fen Gau
Source: PLoS ONE, Vol 10, Iss 9, p e0138695 (2015)
Publisher Information: Public Library of Science (PLoS), 2015.
Publication Year: 2015
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: BACKGROUND:Autism spectrum disorder (ASD) is a neurodevelopmental disorder with strong genetic components. Several recent genome-wide association (GWA) studies in Caucasian samples have reported a number of gene regions and loci correlated with the risk of ASD--albeit with very little consensus across studies. METHODS:A two-stage GWA study was employed to identify common genetic variants for ASD in the Taiwanese Han population. The discovery stage included 315 patients with ASD and 1,115 healthy controls, using the Affymetrix SNP array 6.0 platform for genotyping. Several gene regions were then selected for fine-mapping and top markers were examined in extended samples. Single marker, haplotype, gene-based, and pathway analyses were conducted for associations. RESULTS:Seven SNPs had p-values ranging from 3.4~9.9*10-6, but none reached the genome-wide significant level. Five of them were mapped to three known genes (OR2M4, STYK1, and MNT) with significant empirical gene-based p-values in OR2M4 (p = 3.4*10(-5)) and MNT (p = 0.0008). Results of the fine-mapping study showed single-marker associations in the GLIS1 (rs12082358 and rs12080993) and NAALADL2 (rs3914502 and rs2222447) genes, and gene-based associations for the OR2M3-OR2T5 (olfactory receptor genes, p = 0.02), and GLIPR1/KRR1 gene regions (p = 0.015). Pathway analyses revealed important pathways for ASD, such as olfactory and G protein-coupled receptors signaling pathways. CONCLUSIONS:We reported Taiwanese Han specific susceptibility genes and variants for ASD. However, further replication in other Asian populations is warranted to validate our findings. Investigation in the biological functions of our reported genetic variants might also allow for better understanding on the underlying pathogenesis of autism.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1932-6203
Relation: http://europepmc.org/articles/PMC4580585?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0138695
Access URL: https://doaj.org/article/a8fe46e51c7c4424b0d68fc4e433c236
Accession Number: edsdoj.8fe46e51c7c4424b0d68fc4e433c236
Database: Directory of Open Access Journals
More Details
ISSN:19326203
DOI:10.1371/journal.pone.0138695
Published in:PLoS ONE
Language:English