扩大眼部先天性骨失神障碍的遗传学和表型
Julie A Jurgens1, Brenda J Barry2, Wai-Man Chan3
1F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA; Department of Neurology, Boston Children's Hospital, Boston, MA; Department of Neurology, Harvard Medical School, Boston, MA; Broad Institute of MIT and Harvard, Cambridge, MA.
概括
对未解决的眼部先天性脑失神障碍 (oCCDD) 的遗传分析发现了新的遗传原因和基因型/表型联系. 这项研究突出了oCCDD复杂的遗传特征,为进一步的研究铺平了道路.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 眼科医生 眼科 眼科
- 神经学 神经学
背景情况:
- 眼部先天性神功能障碍 (oCCDD) 是一组影响眼部运动的罕见,复杂的神经疾病.
- 许多oCCDD的病例仍未在遗传上得到解决,这阻碍了诊断和治疗.
研究的目的:
- 确定以前未解决的oCCDD病例的遗传基础.
- 在患有oCCDD的患者中建立基因型/表型相关性.
主要方法:
- 在467个未解决oCCDD的试验对象上进行了全外体或全基因组测序.
- 分析包括血统数据,人类和动物模型表型,以及 de novo 变种识别.
- 候选变异被评估为致病性和基因型/表型关联.
主要成果:
- 在9.2%的试验者中发现了基因变异,另外有15.0%的变异具有不确定的意义.
- 在已建立的oCCDD基因中发现了新的和已知的变异,以及以前与oCCDD或相关综合征无关的基因.
- 该研究确定了与复制物相关的基因,导致以前的错误诊断.
结论:
- 未解决的oCCDDs代表了一组异质的疾病,与其他孟德尔条件有显著的遗传重叠.
- 这些发现提名了许多候选基因用于未来的研究和功能验证.
- 这项研究有助于我们更好地了解oCCDD及其相关疾病的遗传基础.
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