相关实验视频
Updated: Jul 16, 2025

09:45
Detection of Copy Number Alterations Using Single Cell Sequencing
Published on: February 17, 2017
11.7K
组合序列和副本数分析可以改善肢体腰带和其他肌肉病的诊断
Babi R R Nallamilli1, Yinghong Pan1, Lisa Sniderman King2
1Revvity Omics, Pittsburgh, Pennsylvania, USA.
Annals of clinical and translational neurology
|September 9, 2023
概括
一个新的下一代测序面板有助于诊断四肢腰带肌肉缩症 (LGMD) 和相关肌肉病变. 这种综合性测试可以识别序列和副本数变异,改善诊断产量和了解疾病患病率.
科学领域:
- 遗传学 是一个遗传学.
- 神经学 神经学
- 分子生物学分子生物学
背景情况:
- 肢体腰带肌肉衰竭 (LGMD) 和重叠的神经肌肉疾病由于临床和遗传异质性而存在诊断挑战.
- 准确的诊断对于有效的管理和遗传咨询至关重要.
研究的目的:
- 开发和评估一个全面的下一代测序 (NGS) 面板,用于同时检测与LGMD和其他肌肉病相关的基因中的序列和副本数变异.
- 为了确定LGMD亚型和相关疾病的诊断产量,基因变异谱和流行率.
主要方法:
- 一个多基因NGS小组",灯聚焦神经肌肉小组",旨在调查66个与LGMD和其他肌肉病相关的基因.
- 在美国 (2018-2021) 分析了6473名疑似LGMD或重叠肌肉发育不良的患者样本.
主要成果:
- 在19.6%的病例中实现了分子诊断.
- 在LGMD中涉及的关键基因包括CAPN3,DYSF和GAA. 还确定了与其他肌肉发育不良相关的基因,如PABPN1和VCP.
- 在7.5%的病例中,在各种基因中检测到复制数变异,包括DMD和CAPN3.
结论:
- "灯聚焦神经肌肉面板"有效识别LGMD亚型和重叠肌肉病,提供全面的诊断解决方案.
- 该研究强调,某些肌肉缩亚型的患病率高于以前报告的,这表明需要重新评估疾病流行病学.
相关概念视频
Comparing Copy Number Variations and SNPs
17.7K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
17.7K
Sanger Sequencing
754.7K
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...
754.7K
Karyotyping
61.7K
Overview
61.7K
Genome-wide Association Studies-GWAS
13.6K
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...
13.6K

