ArticleJournal of clinical laboratory analysis2021
Prenatal genetic testing in 19 fetuses with corpus callosum abnormality.
Article in Journal of clinical laboratory analysis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Prenatal Genome-Wide Sequencing analysis (Exome or Genome) in detecting pathogenic Single Nucleotide Variants in fetal Central Nervous System Anomalies: systematic review and meta-analysis.European journal of human genetics : EJHG · 2024Pooled it
- Partial agenesis of the corpus callosum: Prenatal ultrasound characteristics, associations, and outcome.Acta obstetricia et gynecologica Scandinavica · 2025Article
- Fetal agenesis of corpus callosum: chromosomal copy number abnormalities and postnatal follow-up.Molecular biology reports · 2024Article
- Molecular Approaches in Fetal Malformations, Dynamic Anomalies and Soft Markers: Diagnostic Rates and Challenges-Systematic Review of the Literature and Meta-Analysis.Diagnostics (Basel, Switzerland) · 2022Review
- Genetic heterogeneity in corpus callosum agenesis.Frontiers in genetics · 2022Review
- Prenatal genetic testing in 19 fetuses with corpus callosum abnormality.Journal of clinical laboratory analysis · 2021Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
backgroundCorpus callosum abnormality (CCA) can lead to epilepsy, moderate severe neurologic or mental retardation. The prognosis of CCA is closely related to genetic etiology. However, copy number variations (CNVs) associated with fetal CCA are still limited and need to be further identified. Only a few scattered cases have been reported to diagnose CCA by whole exome sequencing (WES).
methodsKaryotyping analysis, copy number variation sequencing (CNV-seq), chromosomal microarray analysis (CMA) and WES were parallelly performed for prenatal diagnosis of 19 CCA cases.
resultsThe total detection rate of karyotyping analysis, CMA (or CNV-seq) and WES were 15.79% (3/19), 21.05% (4/19) and 40.00% (2/5), respectively. Two cases (case 11 and case 15) were diagnosed as aneuploidy (47, XY, + 13 and 47, XX, + 21) by karyotyping analysis and CNV-seq. Karyotyping analysis revealed an unknown origin fragment (46,XY,add(13)(p11.2)) in case 3, which was further confirmed to originate from p13.3p11.2 of chromosome 17 by CNV-seq. CMA revealed arr1q43q44 (238923617-246964774) × 1(8.04 Mb) in case 8 with a negative result of chromosome karyotype. WES revealed that 2 of 5 cases with negative results of karyotyping and CNV-seq or CMA carried pathogenic genes ALDH7A1 and ARID1B.
conclusionParallel genetic tests showed that CNV-seq and CMA are able to identify additional, clinically significant cytogenetic information of CCA compared to karyotyping; WES significantly improves the detection rate of genetic etiology of CCA. For the patients with a negative results of CNV-seq or CMA, further WES test is recommended.
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