基因研究的回报结果显示,有21532名患有自闭症的人
Jessica R Wright1, Irina Astrovskaya2, Sarah D Barns1
1Division of Genetics and Genomics, Department of Pediatrics, Boston Children's Hospital, Boston, MA.
概括
研究人员通过SPARK研究确定了1903年可能的致病性 (LP) 和致病性 (P) 遗传变体,1861年患有自闭症的个体. 大多数变异对参与者来说都是新的,诊断结果被返回给超过一半的接触者.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 神经发育障碍 神经发育障碍
- 自闭症谱系障碍 (ASD) 是一种
背景情况:
- 遗传因素在自闭症谱系障碍 (ASD) 中起着重要作用.
- 识别致病性遗传变异可以帮助诊断和理解ASD.
- 该SPARK (SPARKforAutism.org) 倡议是一个大型的,可重新联系的自闭症研究队列.
研究的目的:
- 在SPARK队列中确定自闭症的可能致病性 (LP) 和致病性 (P) 遗传结果.
- 描述将临床确认的遗传发现归还给参与者的过程.
- 评估在一个大,可重新联系的队列中返回遗传结果的实用性.
主要方法:
- 在21532名自闭症患者和17785名父母身上进行了微阵列基因型化和外基因组测序.
- 根据美国医学遗传学学院 (ACMG) 的标准,确定了可能致病 (LP) 和致病 (P) 变体.
- 返回的变异包括副本数变异,染色体形变异和与自闭症和智力障碍密切相关的基因变异.
主要成果:
- 1903年可返回的LP/P变种在1861个人 (队列的8.6%) 中被确定.
- 89.5%的这些遗传变异是参与者以前不知道的.
- 诊断结果返回589名参与者 (53%的接触者),复杂的医疗/认知特征,女性,白人参与者和20多年前被诊断的患者的返回率更高.
结论:
- SPARK促进了自闭症患者临床相关遗传发现的识别和返回,包括未经临床确诊的遗传发现.
- 这项研究为大规模返回行为状况的遗传结果提供了宝贵的经验.
- 在没有自闭症诊断的传播父母中也观察到遗传发现,这表明在更广泛的家庭研究中具有潜在的实用性.
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