验证一种新的产前查工具包:全面分析
Min Zhu1, Jumei Liu1, Jiali Cao1
1Department of Laboratory Medicine, Fujian Key Clinical Specialty of Laboratory Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
Heliyon
|March 27, 2024
概括
测量sFlt-1和PlGF的新套件在诊断妊娠前,一种严重的妊娠并发症方面显示出高准确性. 这种新型试验与现有方法有很强的一致性,为临床使用提供了可靠的工具.
科学领域:
- 生殖医学 生殖医学
- 生物标志物发现发现
- 临床诊断 临床诊断 临床诊断
背景情况:
- 孕前是孕产妇和产周死亡率以及早产的主要原因之一.
- 可溶性fms类氨酸激酶-1 (sFlt-1) 与胎盘生长因子 (PlGF) 的比率是诊断子前症的验证生物标志物.
- 准确可靠的诊断工具对于管理子宫前至关重要.
研究的目的:
- 评估sFlt-1和PlGF的新型定量确定套件的分析性能.
- 评估这套新的产前诊断工具的诊断准确性.
- 为了比较新型组件的性能与广泛使用的免疫试验.
主要方法:
- 使用CMDE和CLSI指南验证测试套件的检测性能.
- 测试结果与Elecsys免疫测试 (罗氏诊断) 的比较.
- 使用独立发现和验证集对诊断疗效的分析,计算曲线下的面积 (AUC).
主要成果:
- 在sFlt-1 (r=0.9966) 和PlGF (r=0.9935) 的新型套件和罗氏套件之间观察到强烈的一致性.
- 这种新型组件在诊断妊娠前时显示出高AUC值:在发现/验证组中,sFlt-1 (0.749/0.729),PlGF (0.795/0.811) 和sFlt-1/PlGF比率 (0.834/0.831).
- AUC值与使用罗氏套件获得的值相似.
结论:
- 新型定量 sFlt-1 和 PlGF 套件显示出与罗氏套件的良好一致性.
- 这些套件表现出高诊断性能,用于产前.
- 这种新型套件代表了在孕前诊断中对sFlt-1和PlGF的定量确定的一种可靠选择.
相关概念视频
Mass Analyzers: Overview
The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
Qualitative Analysis
Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
There are two main approaches to qualitative analysis:...
Sample Preparation for Analysis: Overview
Sample preparation is an essential step in the analytical process. It involves preparing a sample so that it can be analyzed accurately. The goal is to extract the analyte, the substance you want to measure, from the sample while removing any components that may interfere with the analysis. Sample preparation techniques vary depending on the physical state of the sample.
Bulk or large solid samples are typically reduced in size using grinding, crushing, or milling techniques to increase the...
Bulk or large solid samples are typically reduced in size using grinding, crushing, or milling techniques to increase the...
Sample Preparation for Analysis: Advanced Techniques
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...


