Results 1 to 10 of about 6,628 (168)

Alström syndrome caused by maternal uniparental disomy [PDF]

open access: yesAmerican Journal of Ophthalmology Case Reports, 2023
Purpose: To describe a case of Alström syndrome arising from maternal uniparental disomy. Observations: A 13-month-old boy with poor vision and nystagmus was diagnosed with Alström syndrome based on genetic testing that identified a homozygous pathogenic
Madeline Q.R. Lopour   +5 more
doaj   +4 more sources

A rare case of uniparental disomy 9 concomitant with low-level mosaicism [PDF]

open access: yesВавиловский журнал генетики и селекции
Uniparental disomy of chromosome 9, in combination with low-level mosaicism for chromosome 9, represents a rare chromosomal disorder. One of the mechanisms underlying the formation of uniparental disomy is the trisomy rescue, which concurrently results ...
A. S. Iakovleva   +3 more
doaj   +2 more sources

Prenatal diagnosis of paternal uniparental disomy for chromosome 2 in two fetuses with intrauterine growth restriction [PDF]

open access: yesMolecular Cytogenetics, 2023
Uniparental disomy (UPD) is when all or part of the homologous chromosomes are inherited from only one of the two parents. Currently, UPD has been reported to occur for almost all chromosomes.
Xuemei Tan   +6 more
doaj   +2 more sources

Cytogenetic contribution to uniparental disomy (UPD) [PDF]

open access: yesMolecular Cytogenetics, 2010
Uniparental disomy (UPD) is often considered as an event to be characterized exclusively by molecular genetic or epigenetic approaches. This review shows that at least one third of UPD cases emerge in connection with or due to a chromosomal rearrangement.
Liehr Thomas
doaj   +3 more sources

Large heterozygous deletion and uniparental disomy masquerading as homozygosity in CHKB gene [PDF]

open access: yesMolecular Genetics & Genomic Medicine, 2023
Background CHKB mutations have been described in 49 patients with megaconial congenital muscular dystrophy, which is a rare autosomal recessive disorder, of which 40 patients showed homozygosity.
Tenghui Wu   +5 more
doaj   +2 more sources

Prenatal ultrasound findings and clinical outcomes of uniparental disomy: a retrospective study [PDF]

open access: yesBMC Pregnancy and Childbirth
Background Uniparental disomy is the inheritance of a homologous chromosome pair or part of homologous chromosomes from only one parent. However, the clinical significance of uniparental disomy and the difference among the prognosis of involvement of ...
Cui-Yi Wu   +4 more
doaj   +2 more sources

Case Report: Pediatric CNS-isolated hemophagocytic lymphohistiocytosis secondary to uniparental disomy of PRF1 mutation [PDF]

open access: yesFrontiers in Genetics
BackgroundCentral nervous system-isolated hemophagocytic lymphohistiocytosis (CNS-HLH) is a rare disease caused by mutations in several genes.MethodsClinical information was obtained from medical records. Genetic analyses were performed using whole-exome
Jiao Xue   +7 more
doaj   +2 more sources

Complete uniparental disomy of chromosome 1 in a child with isolated developmental delay [PDF]

open access: yesClinical Case Reports, 2022
Complete uniparental disomy of chromosome 1 (UPD1) is an uncommon genetic finding about which a specific phenotype has not yet been established. We present a boy who has complete paternal UPD1 and isolated developmental delay and suggest that there is no
Violet Wallerstein   +2 more
doaj   +2 more sources

Prenatal diagnosis of paternal uniparental disomy for chromosome 14 using a single-nucleotide-polymorphism-based microarray analysis: A case report

open access: yesJournal of the Formosan Medical Association, 2019
Paternal uniparental disomy 14 (UDP(14)pat) is a rare imprinting disorder with a set of unique neonatal clinical features documented, including craniofacial abnormalities, thoracic and abdominal wall defects, and polyhydraminos. To date, no studies focus
Yiyun Tai, Shin-Yu Lin, Chien-Nan Lee
exaly   +3 more sources

Case report: A case of novel homozygous LRBA variant induced by chromosomal segmental uniparental disomy - genetic and clinical insights [PDF]

open access: yesFrontiers in Immunology
ObjectiveThe study aims to report a rare case of a novel homozygous variant in the LRBA gene, originating from uniparental disomy of paternal origin. This case contributes new clinical data to the LRBA gene variant database.MethodsThe study details the ...
Lihua Jiang, Sen Chen
doaj   +2 more sources

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