1. Molecular cytogenetic analysis of a series of 23 DiGeorge syndrome patients by fluorescence in situ hybridization
- Author
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S, Demczuk, C, Desmaze, M, Aikem, M, Prieur, F, Ledeist, M, Sanson, G, Rouleau, G, Thomas, and A, Aurias
- Subjects
Chromosome Aberrations ,Genetic Markers ,Heart Defects, Congenital ,Male ,Adolescent ,Hypocalcemia ,Infant ,Thymus Gland ,Parathyroid Glands ,Phenotype ,T-Lymphocyte Subsets ,Child, Preschool ,Face ,DiGeorge Syndrome ,Humans ,Female ,Child ,Oligonucleotide Probes ,In Situ Hybridization, Fluorescence ,Sequence Deletion - Abstract
The authors have studied a series of 23 DiGeorge syndrome patients by prometaphase chromosome analysis and/or by FISH with a set of 6 cosmid probes spanning the previously described commonly deleted region. Four patients display a cytogenetically visible interstitial deletion in band 22q11.2, whereas the other 18 patients exhibit a molecular deletion evidenced only by FISH analysis. For 21 of the patients studied, the deletion encompasses the 6 loci tested, while for one, only the most telomeric of these loci is conserved. The last patient does not show any deletion with the probes used.
- Published
- 1994