下一代变异异子查:在常规遗传疾病调查中向前迈进
Conghui Wang1, Panlai Shi1, Hongbin Liang2
1Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Genetics in medicine open
|December 13, 2024
概括
下一代变异异子查 (ngVES) 可以从标准的外体序列数据中识别单核酸变异和副本数变异 (CNVs). 这种双重检测能力增加了遗传性皮肤疾病的诊断产量.
科学领域:
- 遗传学 遗传学 是一个
- 基因组医学是基因组医学.
- 皮肤病学 皮肤病学
背景情况:
- 遗传性疾病往往需要分子测试来诊断.
- 外基组测序 (ES) 和基于数组的方法是识别遗传变异的常见方法.
- 区分单核酸变异和副本数变异 (CNVs) 对于诊断至关重要.
研究的目的:
- 评估标准外基因组测序 (ES) 数据是否可用于检测致病性拷贝数变异 (CNV).
- 确定这种方法是否可以提高遗传疾病,特别是皮肤疾病的诊断产量.
主要方法:
- 在前性研究中,研究了134名怀疑患有遗传性皮肤疾病的患者.
- 采用了下一代变体外检测 (ngVES) 测试.
- 使用已建立的算法分析了单核酸变体和CNV的测序数据.
主要成果:
- 使用ngVES.实现了66%的遗传性皮肤疾病的阳性检测率.
- 确定了神经纤维素瘤类型1 (48名患者) 和状硬化类型2 (12名患者) 作为常见的诊断.
- 通过额外检测致病性CNV,诊断产量从58%增加到66%,其中9个CNV被独立验证.
结论:
- 在ngVES生物信息学管道中的进展改善了皮肤疾病中遗传变异的识别.
- 同时检测单核酸变异/INDEL和CNV表明了ngVES的潜力.
- ngVES显示出作为任何疑似遗传疾病的第一级查工具的前景.
更多相关视频
09:34Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
33.6K
11:35Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
Published on: August 21, 2016
12.9K
相关概念视频
Genetic Screens
4.9K
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
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
4.9K
Genome-wide Association Studies-GWAS
12.4K
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.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.4K
