Identification of Chromosomal Abnormalities in Early Pregnancy Loss Using a High-Throughput Ligation-Dependent Probe Amplification-Based Assay

Copyright © 2021 Association for Molecular Pathology and American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved..

Embryonic chromosomal abnormalities are the major cause of miscarriage. An accurate, rapid, and cheap method of chromosome analysis in miscarriage is warranted in clinical practice. Thus, a high-throughput ligation-dependent probe amplification (HLPA)-based method of detecting aneuploidies and copy number variations in miscarriage was developed. A total of 1060 cases of miscarriage were assessed. Each specimen was subjected to quantitative fluorescence (QF)-PCR/HLPA and chromosomal microarray analysis (CMA) in parallel. All 1060 samples were successfully analyzed using both methods; of these samples, 1.7% (18/1060) were identified as having significant maternal cell contamination. Among the remaining 1042 cases without significant maternal cell contamination, QF-PCR/HLPA reached a diagnostic yield of 59.6% (621/1042), which is comparable to the yield of 60.3% (628/1042) with CMA. Compared with CMA results, the sensitivity and specificity of QF-PCR/HLPA in the identification of total pathogenic chromosomal abnormalities were 98.9% and 100%, respectively. Furthermore, the overall prevalence of chromosomal abnormalities in cases of spontaneous abortion was not significantly different from that in cases of recurrent miscarriage (61.3% versus 58.5%). In summary, QF-PCR/HLPA rapidly and accurately identified chromosomal abnormalities at a comparable performance and lower cost as compared with CMA. Combining simplicity and accuracy with cost-effectiveness, QF-PCR/HLPA may serve as a promising approach to routine genetic testing in miscarriage in clinical practice.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:23

Enthalten in:

The Journal of molecular diagnostics : JMD - 23(2021), 1 vom: 01. Jan., Seite 38-45

Sprache:

Englisch

Beteiligte Personen:

Wang, Yan [VerfasserIn]
Zhou, Ran [VerfasserIn]
Jiang, Lili [VerfasserIn]
Meng, Lulu [VerfasserIn]
Tan, Jianxin [VerfasserIn]
Qiao, Fengchang [VerfasserIn]
Wang, Yuguo [VerfasserIn]
Zhang, Cuiping [VerfasserIn]
Cheng, Qing [VerfasserIn]
Jiang, Zhengwen [VerfasserIn]
Hu, Ping [VerfasserIn]
Xu, Zhengfeng [VerfasserIn]

Links:

Volltext

Themen:

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 08.11.2021

Date Revised 08.11.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jmoldx.2020.10.002

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM316393088