对NIPT常见形积分症查方法的精度差异进行系统审查
Tamas Marton1, Zsófia R Erdélyi1, Minori Takai1
1Department of Obstetrics and Gynecology, Semmelweis University, 1082 Budapest, Hungary.
Journal of clinical medicine
|April 26, 2025
概括
非侵入性产前检测 (NIPT) 方法对常见的胎儿三症有类似的准确性,但积极的预测值有所不同. 将NIPT与超声波查相结合,可以提高其在怀孕期间的效用.
科学领域:
- 遗传学和基因组学 在
- 产前诊断 在产前诊断
- 孕产妇和胎儿医学 孕产妇和胎儿医学
背景情况:
- 非侵入性产前检测 (NIPT) 是一种广泛采用的胎儿动脉瘤查方法,比传统方法准确度更高.
- 现有各种NIPT技术,包括全基因组测序 (WGS),单核酸多态 (SNP),微阵列和滚动圆放大 (RCA).
- 对NIPT方法的性能进行全面的比较评估,特别是对于三症检测的预测值,是有限的.
研究的目的:
- 系统地审查和比较用于常见肺积体查的不同NIPT方法的准确性.
- 评估各种NIPT技术的性能指标,包括灵敏度,特异性和预测值.
主要方法:
- 2003年至2023年间发表的临床研究的系统审查,包括WGS,SNP,微阵列和RCA NIPT方法.
- 在没有限制的情况下从主要数据库 (PubMed,Embase,Web of Science,Scopus,clinicaltrials.gov,Cochrane Library) 提取数据.
- 计算灵敏度,特异性,正预测值 (PPV) 和负预测值 (NPV) 从提取的真/假阳性/负数据来计算三症21 (T21),18 (T18) 和13 (T13).
主要成果:
- 这份综述包括了21篇研究的20篇文章,涉及92,164名孕妇.
- 所有NIPT方法都显示T21检测的高灵敏度 (>97%) 超过了传统查.
- 与其他NIPT方法相比,SNP和RCA方法显示PPV较低;微阵列对T18具有较低的灵敏度;WGS和RCA通常对T13具有较低的PPV.
结论:
- 不同的NIPT方法对常见的胎儿三症具有相似的临床敏感性,特异性和NPV.
- 在NIPT方法中PPV的变化突显了确认性侵入性测试的必要性,以获得积极的结果.
- 将NIPT与对结构异常的超声波查相结合,可能会提高非侵入性产前检测的整体临床效用.
更多相关视频
09:30Pre-Implantation Genetic Testing for Aneuploidy on a Semiconductor Based Next-Generation Sequencing Platform
Published on: August 17, 2022
3.0K
12:32Chromosome Screening of Human Preimplantation Embryos by Using Spent Culture Medium: Sample Collection and Chromosomal Ploidy Analysis
Published on: September 7, 2021
2.0K
相关概念视频
Nondisjunction
3.6K
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers. Nondisjunction is common during anaphase I or anaphase II of meiosis. Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold...
3.6K
Comparing Copy Number Variations and SNPs
16.7K
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%...
16.7K
