Rare Copy Number Variants in NRXN1 and CNTN6 Increase Risk for Tourette Syndrome.

Rare Copy Number Variants in NRXN1 and CNTN6 Increase Risk for Tourette Syndrome.
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NRXN1和CNTN6中的罕见拷贝数变体增加了Tourette综合征的风险。

DOI:
10.1016/j.neuron.2017.06.010
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发表时间:
2017-06-21
期刊:
影响因子:
16.2
通讯作者:
Gilles de la Tourette Syndrome GWAS Replication Initiative (GGRI)
Gilles de la Tourette Syndrome GWAS Replication Initiative (GGRI)
中科院分区:
医学1区
文献类型:
--
作者:
Huang AY;Yu D;Davis LK;Sul JH;Tsetsos F;Ramensky V;Zelaya I;Ramos EM;Osiecki L;Chen JA;McGrath LM;Illmann C;Sandor P;Barr CL;Grados M;Singer HS;Nöthen MM;Hebebrand J;King RA;Dion Y;Rouleau G;Budman CL;Depienne C;Worbe Y;Hartmann A;Müller-Vahl KR;Stuhrmann M;Aschauer H;Stamenkovic M;Schloegelhofer M;Konstantinidis A;Lyon GJ;McMahon WM;Barta C;Tarnok Z;Nagy P;Batterson JR;Rizzo R;Cath DC;Wolanczyk T;Berlin C;Malaty IA;Okun MS;Woods DW;Rees E;Pato CN;Pato MT;Knowles JA;Posthuma D;Pauls DL;Cox NJ;Neale BM;Freimer NB;Paschou P;Mathews CA;Scharf JM;Coppola G;Tourette Syndrome Association International Consortium for Genetics (TSAICG);Gilles de la Tourette Syndrome GWAS Replication Initiative (GGRI)

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图雷特综合征(TS)是一种典型的神经精神疾病,被认为是由皮质-纹状体-丘脑-皮质回路的异常发育和/或维持引起的。TS是高度可遗传的,但其潜在的遗传原因仍然难以捉摸,迄今为止还没有发现全基因组的重要位点。我们使用SNP微阵列数据分析了2434例TS病例和4093例祖先匹配对照的罕见(频率<1%)拷贝数变异(CNVs)。我们观察到,全球CNV负荷的富集在大型(bbb1mb)、单例事件(OR=2.28, 95%CI [1.39-3.79], p=1.2×10−3)和已知致病性CNV (OR=3.03 [1.85-5.07], p=1.5×10−5)中尤为突出。我们还发现了两个个体的全基因组显著位点,每个位点都使TS风险显著增加(NRXN1缺失,OR=20.3, 95%CI [2.6-156.2]; CNTN6重复,OR=10.1, 95%CI[2.3-45.4])。大约1%的TS病例携带这些CNVs之一,表明罕见的结构变异对TS的遗传结构有重要贡献。
Tourette syndrome (TS) is a model neuropsychiatric disorder thought to arise from abnormal development and/or maintenance of cortico-striato-thalamo-cortical circuits. TS is highly heritable, but its underlying genetic causes are still elusive, and no genome-wide significant loci have been discovered to date. We analyzed a European ancestry sample of 2,434 TS cases and 4,093 ancestry-matched controls for rare (<1% frequency) copy-number variants (CNVs) using SNP microarray data. We observed an enrichment of global CNV burden that was prominent for large (>1 Mb), singleton events (OR=2.28, 95%CI [1.39–3.79], p=1.2×10−3) and known, pathogenic CNVs (OR=3.03 [1.85–5.07], p=1.5×10−5). We also identified two individual, genome-wide significant loci, each conferring a substantial increase in TS risk (NRXN1 deletions, OR=20.3, 95%CI [2.6–156.2]; CNTN6 duplications, OR=10.1, 95% CI [2.3–45.4]). Approximately 1% of TS cases carry one of these CNVs, indicating that rare structural variation contributes significantly to the genetic architecture of TS.
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