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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
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Updated: Jun 13, 2025

A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
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在患有的成年人中进行整体外体基因检测.

Martin Krenn1,2, Matias Wagner3,4, Karin Trimmel1,2

  • 1Department of Neurology, Medical University of Vienna, Austria.

Neurology. Genetics
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PubMed
概括

在患有的成年人中,整体外基因组测序 (ES) 实现了30.2%的诊断收益率,超过了基因组. 这种基因测试方法确定了新的病原因,并作出了明智的治疗决定.

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科学领域:

  • 遗传学 遗传学 是一个
  • 神经学 神经学
  • 的研究研究.

背景情况:

  • 外体序列测序 (ES) 是为儿科的诊断而建立的.
  • 在成年症中ES的诊断效用仍然不那么明确.
  • 这项研究研究了针对成人的综合性基于外体的方法.

研究的目的:

  • 为了评估整体外体序列测序在的成年人的诊断结果.
  • 将ES的诊断产量与全面的基因面板进行比较.
  • 确定新的遗传病因,并扩大已知的基因表型.

主要方法:

  • 106名患有和推定遗传病因的成年人接受了诊断外基因组测序.
  • 分析包括拷贝数变异 (CNV) 和线粒体DNA.
  • 结果与三个模拟的综合基因面板进行了比较.

主要成果:

  • 实现了30.2%的诊断产量,超过了所有模拟基因面板.
  • 发育性和性脑病变的表型与遗传诊断有关.
  • 确定了27种不同的分子病因,包括致病性CNV和线粒体DNA变异. 临床影响导致15.6%的已解决病例发生治疗变化. 报告了三个基因和一个潜在的新候选基因 (CLASP1) 的表型扩展.

结论:

  • 包括CNV和线粒体分析在内的整体外体组序列测序在成人诊断中得到了强烈支持.
  • 遗传发现可以为临床管理提供信息,类似于儿科病例.
  • 这种方法有助于表型扩展和在成人中发现候选基因.