全基因组测序作为新生儿重症监护室婴儿的一级诊断测试:巴西的一项试点研究
Michele P Migliavacca1, Joselito Sobreira1,2, Diana Bermeo1
1Diagnósticos da América S.A., DASA, São Paulo, Brazil.
American journal of medical genetics. Part A
|January 23, 2024
概括
全基因组测序 (WGS) 是巴西重症婴儿的可行一级诊断测试. 这项试点研究显示了57%的诊断收益率,识别了新型变异,并超过了传统的遗传测试.
科学领域:
- 基因组学就是基因组学.
- 新生儿医学 新生儿医学
- 临床诊断 临床诊断 临床诊断
背景情况:
- 新生儿重症监护室 (NICU) 经常管理未被诊断的遗传疾病的婴儿.
- 及时诊断对于指导医疗护理和改善重症新生儿的治疗结果至关重要.
- 全基因组测序 (WGS) 为遗传诊断提供了一种全面的方法.
研究的目的:
- 评估全基因组测序 (WGS) 作为巴西NICU的第一级诊断测试的可行性.
- 确定疑似遗传疾病的婴儿的诊断产量和遗传变异类型.
- 评估WGS在巴西医疗保健系统中实施新生儿护理的挑战和好处.
主要方法:
- 在21名婴儿身上进行了三组 (试验物和父母) 全基因组测序 (WGS).
- 婴儿被怀疑患有遗传性疾病,包括异形综合征,代谢先天错误和骨功能障碍.
- 分析了诊断结果,以确定检测到的变异的产量和类型.
主要成果:
- 在该队列中,WGS的诊断产量为57% (12/21).
- 总共有16种致病性/可能致病性变异和10种未知意义的变异被确定,其中包括10种新型变异.
- 从注册到医疗报告的平均周转时间为53天.
结论:
- 全基因组测序 (WGS) 是巴西医疗保健系统中严重疾病婴儿的可行和有效的第一级诊断工具.
- 与传统遗传测试相比,WGS的诊断产量更高.
- 实施WGS提出了挑战,但为巴西新生儿遗传诊断提供了显著的潜在好处.
相关概念视频
Next-generation Sequencing
88.9K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
88.9K
Sanger Sequencing
754.4K
DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
754.4K
Genomics
36.3K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
36.3K
RNA-seq
10.0K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.0K


