The Importance of Investigating for Uniparental Disomy in Prenatally Identified Balanced Acrocentric Rearrangements
Overview
Authors
Affiliations
We report the finding of paternal isodisomy for chromosome 14 in a fetus found to have a der(14;14)(q10;q10) by amniocentesis. The pregnancy was complicated by severe polyhydramnios and elevated amniotic fluid alpha-fetoprotein (AFP). The infant showed features consistent with paternal uniparental disomy (UPD) including postnatal growth retardation, poor respiratory function, feeding difficulties, and evidence of hypertrophic cardiomyopathy. The present case, in addition to other reported cases of UPD involving balanced acrocentric rearrangements, supports testing for UPD in prenatally detected Robertsonian translocations and isochromosomes.
Kagami-Ogata Syndrome: Case Series and Review of Literature.
Sakaria R, Mostafavi R, Miller S, Ward J, Pivnick E, Talati A AJP Rep. 2021; 11(2):e65-e75.
PMID: 34055463 PMC: 8159623. DOI: 10.1055/s-0041-1727287.
Wang X, Pang H, Shah B, Gu H, Zhang L, Wang H Front Pediatr. 2020; 8:88.
PMID: 32211354 PMC: 7076151. DOI: 10.3389/fped.2020.00088.
Ogata T, Kagami M J Hum Genet. 2015; 61(2):87-94.
PMID: 26377239 PMC: 4771937. DOI: 10.1038/jhg.2015.113.
Relative frequency of underlying genetic causes for the development of UPD(14)pat-like phenotype.
Kagami M, Kato F, Matsubara K, Sato T, Nishimura G, Ogata T Eur J Hum Genet. 2012; 20(9):928-32.
PMID: 22353941 PMC: 3421115. DOI: 10.1038/ejhg.2012.26.
Irving M, Buiting K, Kanber D, Donaghue C, Schulz R, Offiah A Am J Med Genet A. 2010; 152A(8):1942-50.
PMID: 20602488 PMC: 3819653. DOI: 10.1002/ajmg.a.33449.