Open AccessPrenatal diagnosis of Prader‐Willi syndrome due to uniparental disomy with NIPS: Case report and literature review
Author(s) -
Shubina Jekaterina,
Barkov Ilya Y.,
Stupko Olga K.,
Kuznetsova Maria V.,
Goltsov Andrey Y.,
Kochetkova Taisya O.,
Trofimov Dmitry Y.,
Sukhikh Gennady T.
Publication year - 2020
Publication title -
molecular genetics and genomic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 29
ISSN - 2324-9269
DOI - 10.1002/mgg3.1448
Subject(s) - uniparental disomy , amniocentesis , prenatal diagnosis , snp array , medicine , snp , genomic imprinting , microarray , genetic testing , prenatal screening , genetics , fetus , bioinformatics , chromosome , single nucleotide polymorphism , biology , pregnancy , gene , karyotype , genotype , gene expression , dna methylation
Background PWS is challenging to diagnose prenatally due to a lack of precise and well‐characterized fetal phenotypes and noninvasive markers. Here we present the case of prenatal diagnosis of Prader‐Willi syndrome, which was suspected with whole‐genome NIPS. Methods Whole‐genome noninvasive prenatal screening showed a high risk for trisomy 15. Amniocentesis followed by FISH analysis and SNP‐based chromosomal microarray was performed. Results Simultaneous analysis of maternal and fetal samples with SNP microarrays demonstrated maternal uniparental disomy (UPD). Conclusion The presented case is the first case of PWS described in detail, which was suspected by NIPS results. It demonstrates that the choice of confirmation methods concerning the time needed is crucial for the right diagnosis. We suppose that prenatal testing of UPD is essential for chromosome regions, which play a key role in the appearance of various gene‐imprinting failure syndromes like PWS or AS.
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