基因组范围的无细胞DNA分析用于检测流产中的形积分:测试性能元分析
Montse Pauta1,2, Raigam J Martinez-Portilla1,3,4, Ana Cecilia Jara-Ettinger3,4
1Fetal Medicine Research Center, BCNatal. Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic de Barcelona and Hospital Sant Joan de Deu), Barcelona, Spain.
Prenatal diagnosis
|May 27, 2025
概括
全基因组无细胞DNA (cfDNA) 测试显示,在流产中识别体积的准确性很好. 这种选方法是有利的,因为它不需要产品的概念.
科学领域:
- 生殖医学 生殖医学
- 遗传学 是一个遗传学.
- 产前诊断 在产前诊断
背景情况:
- 流产是一种常见的妊娠并发症.
- 在流产中精确识别胎儿形状是了解复发和指导管理的关键.
- 当前的诊断方法往往需要侵入性手术或特定组织样本.
研究的目的:
- 系统地审查和元分析全基因组无细胞DNA (cfDNA) 测试在检测流产的怀孕中形状的有效性.
- 将cfDNA测试的诊断性能与传统遗传诊断研究进行比较.
主要方法:
- 对22周妊娠前怀孕损失的全基因组cfDNA测试观察性研究的系统综述.
- 层次总结接收器操作曲线 (HSROC) 分析,以评估聚合的灵敏度,特异性和AUC.
- 单一比例的元分析,对合并的形积分率,无呼叫率和与诊断研究的一致性进行分析.
主要成果:
- 分析了包括552例流产在内的8项研究.
- 聚合灵敏度为78% (95% CI:71%-83%) 和特异性为91% (95% CI:86%-95%) 检测出状体.
- 综合的块化率为61% (95% CI: 53%-69%),没有呼叫率为4%,与诊断研究一致率为84%.
结论:
- 全基因组cfDNA测试显示了可接受的准确性作为查工具胎儿形在流产.
- 一个关键的优势是cfDNA测试不需要可用产品的概念或先前的胆 ?? 皮取样.
- 这种非侵入性方法为早期妊娠损失中形状查提供了有价值的替代方案.
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
3.2K
12:32Chromosome Screening of Human Preimplantation Embryos by Using Spent Culture Medium: Sample Collection and Chromosomal Ploidy Analysis
Published on: September 7, 2021
2.2K
相关概念视频
01:21Nondisjunction
4.1K
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...
4.1K
01:11Genome-wide Association Studies-GWAS
14.4K
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...
14.4K