Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-6-9
pubmed:abstractText
We report on a 12-year-old boy who presented with delayed development and CNS dysmyelination. Genetic studies showed a normal 46,XY karyotype by routine cytogenetic analysis, and 46,XY.ish del(18)(q23)(D18Z1+, MBP-) by FISH using a locus-specific probe for the MBP gene (18q23). Though the patient appeared to have normal chromosome 18s by repeated high resolution banding analysis, his clinical features were suggestive of a deletion of 18q. These included hearing loss secondary to stenosis of the external auditory canals, abnormal facial features, and foot deformities. FISH studies with genomic probes from 18q22.3 to 18qter confirmed a cryptic deletion which encompassed the MBP gene. In an attempt to further characterize the deletion, whole genome screening was conducted using array based comparative genomic hybridization (array CGH) analysis. The array CGH data not only confirmed a cryptic deletion in the 18q22.3 to 18qter region of approximately 7 Mb, it also showed a previously undetected 3.7 Mb gain of 4q material. FISH studies demonstrated that the gained 4q material was translocated distal to the 18qter deletion breakpoint. The 18q deletion contains, in addition to MBP, other known genes including CYB5, ZNF236, GALR1, and NFATC1, while the gained 4q material includes the genes FACL1 and 2, KLKB1, F11 and MTNR1A. The use of these combined methodologies has resulted in the first reported case in which array CGH has been used to characterize a congenital chromosomal abnormality, highlighting the need for innovative molecular cytogenetic techniques in the diagnosis of patients with idiopathic neurological abnormalities.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1552-4825
pubmed:author
pubmed:copyrightInfo
Copyright 2003 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
120A
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
127-35
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:12794705-Central Nervous System, pubmed-meshheading:12794705-Child, pubmed-meshheading:12794705-Chromosome Banding, pubmed-meshheading:12794705-Chromosomes, Human, Pair 18, pubmed-meshheading:12794705-Chromosomes, Human, Pair 4, pubmed-meshheading:12794705-Cytogenetics, pubmed-meshheading:12794705-DNA, pubmed-meshheading:12794705-Gene Deletion, pubmed-meshheading:12794705-Genotype, pubmed-meshheading:12794705-Hearing Loss, pubmed-meshheading:12794705-Humans, pubmed-meshheading:12794705-In Situ Hybridization, Fluorescence, pubmed-meshheading:12794705-Intellectual Disability, pubmed-meshheading:12794705-Karyotyping, pubmed-meshheading:12794705-Magnetic Resonance Imaging, pubmed-meshheading:12794705-Male, pubmed-meshheading:12794705-Models, Genetic, pubmed-meshheading:12794705-Myelin Basic Proteins, pubmed-meshheading:12794705-Myelin Sheath, pubmed-meshheading:12794705-Nucleic Acid Hybridization, pubmed-meshheading:12794705-Translocation, Genetic
pubmed:year
2003
pubmed:articleTitle
Molecular characterization of a patient with central nervous system dysmyelination and cryptic unbalanced translocation between chromosomes 4q and 18q.
pubmed:affiliation
Department of Cellular and Structural Biology, The University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA. Gunn@UTHSCSA.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't