Linked Life Data

19372674

Source:http://linkedlifedata.com/resource/pubmed/id/19372674

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-4-17
pubmed:abstractText
Children with intellectual disability, dysmorphic features, malformations and/or growth abnormalities frequently display normal karyotypes. Recent studies have shown that genome-wide single nucleotide polymorphism (SNP) arrays can be effective in detecting abnormalities involving copy number variation (CNV), deletions, duplications and loss of heterozygosity (LOH) that routine cytogenetic tests fail to identify. Five patients with various degrees of intellectual disability and/or dysmorphic features and other malformations were whole-genome genotyped using the Human-1 Genotyping BeadChip--Exon-Centrix 100K SNP arrays (Illumina). All patients had undergone routine cytogenetic testing; four patients had normal karyotypes, while one patient had an apparently balanced complex translocation involving chromosomes 1q25, 1q32, 2q23, 7q22 and 16q24. We detected deletions on chromosome 1q44 and 13q31.1 in one patient, and LOH of the entire chromosome 2 in another patient, both with cytogenetically normal karyotypes. The patient with the complex translocation had a deletion on chromosome 7q22.2-22.3, which is in conjunction with one of the translocation breakpoints. Our findings provide further evidence of there being a critical region for the development of microcephaly and corpus callosum abnormalities in children with distal 1q deletions. We have also shown that apparently balanced complex translocations might not be balanced at the DNA level, and we report the fourth case of paternal uniparental disomy of chromosome 2. The results of this study suggest that it may be desirable to investigate idiopathic mental retardation using genome-wide SNP arrays, in conjunction with other cytogenetic and molecular techniques.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
1424-859X
pubmed:author
pubmed:copyrightInfo
Copyright 2009 S. Karger AG, Basel.
pubmed:issnType
Electronic
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
94-101
pubmed:meshHeading
pubmed-meshheading:19372674-Adolescent, pubmed-meshheading:19372674-Alleles, pubmed-meshheading:19372674-Child, pubmed-meshheading:19372674-Chromosomes, Human, Pair 1, pubmed-meshheading:19372674-Chromosomes, Human, Pair 2, pubmed-meshheading:19372674-Fathers, pubmed-meshheading:19372674-Female, pubmed-meshheading:19372674-Gene Dosage, pubmed-meshheading:19372674-Gene Frequency, pubmed-meshheading:19372674-Humans, pubmed-meshheading:19372674-Infant, pubmed-meshheading:19372674-Loss of Heterozygosity, pubmed-meshheading:19372674-Male, pubmed-meshheading:19372674-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:19372674-Phenotype, pubmed-meshheading:19372674-Polymorphism, Single Nucleotide, pubmed-meshheading:19372674-Sequence Deletion, pubmed-meshheading:19372674-Translocation, Genetic, pubmed-meshheading:19372674-Uniparental Disomy
pubmed:year
2009
pubmed:articleTitle
A 1q44 deletion, paternal UPD of chromosome 2 and a deletion due to a complex translocation detected in children with abnormal phenotypes using new SNP array technology.
pubmed:affiliation
Faculty of Health, School of Biomedical Sciences, University of Newcastle and the Hunter Medical Research Institute, Newcastle, NSW, Australia. Bente.Talseth-Palmer@newcastle.edu.au
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't