PMID- 12673657 OWN - NLM STAT- MEDLINE DCOM- 20040106 LR - 20200930 IS - 1552-4825 (Print) IS - 1552-4825 (Linking) VI - 118A IP - 3 DP - 2003 Apr 30 TI - Toward a genetic etiology of CHARGE syndrome: I. A systematic scan for submicroscopic deletions. PG - 260-6 AB - CHARGE syndrome is a distinctive subgroup within the more heterogeneous group of patients with CHARGE association. While significant progress has been made in the clinical delineation of this syndrome, the molecular basis of the disorder remains unknown. Based on the complex phenotype, some overlap with DiGeorge/velocardiofacial syndrome (DGS/VCFS), and its estimated population incidence, we hypothesized that CHARGE syndrome could be caused by an unidentified genomic microdeletion. In order to address this hypothesis, we carried out a genome-wide screen for loss of expected heterozygosity using 811 microsatellite markers in ten CHARGE syndrome subjects and their unaffected parents. Eight markers gave results suggestive of failure to inherit one parental allele. These loci were tested with fluorescence in situ hybridization (FISH), but none showed evidence of deletion. This screen sets upper limits on the length of a CHARGE-related microdeletion, should that be the genetic mechanism underlying the phenotype. CI - Copyright 2003 Wiley-Liss, Inc. FAU - Lalani, Seema R AU - Lalani SR AD - Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA. FAU - Stockton, David W AU - Stockton DW FAU - Bacino, Carlos AU - Bacino C FAU - Molinari, Laura M AU - Molinari LM FAU - Glass, Nancy L AU - Glass NL FAU - Fernbach, Susan D AU - Fernbach SD FAU - Towbin, Jeffrey A AU - Towbin JA FAU - Craigen, William J AU - Craigen WJ FAU - Graham, John M Jr AU - Graham JM Jr FAU - Hefner, Margaret A AU - Hefner MA FAU - Lin, Angela E AU - Lin AE FAU - McBride, Kim L AU - McBride KL FAU - Davenport, Sandra L AU - Davenport SL FAU - Belmont, John W AU - Belmont JW LA - eng GR - HD22657-11/HD/NICHD NIH HHS/United States GR - HD39056/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 RN - 0 (DNA, Complementary) RN - 0 (Genetic Markers) SB - IM MH - Alleles MH - Blotting, Southern MH - Chromosome Mapping MH - DNA, Complementary/metabolism MH - *Gene Deletion MH - Genetic Markers MH - Genotype MH - Heterozygote MH - Humans MH - In Situ Hybridization, Fluorescence MH - Loss of Heterozygosity MH - Microsatellite Repeats MH - Phenotype MH - Polymorphism, Genetic MH - Syndrome EDAT- 2003/04/04 05:00 MHDA- 2004/01/07 05:00 CRDT- 2003/04/04 05:00 PHST- 2003/04/04 05:00 [pubmed] PHST- 2004/01/07 05:00 [medline] PHST- 2003/04/04 05:00 [entrez] AID - 10.1002/ajmg.a.20002 [doi] PST - ppublish SO - Am J Med Genet A. 2003 Apr 30;118A(3):260-6. doi: 10.1002/ajmg.a.20002.