Further delineation of the 15q13 microdeletion and duplication syndromes
| العنوان: | Further delineation of the 15q13 microdeletion and duplication syndromes |
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| المؤلفون: | Geert Vandeweyer, Willy M. Nillesen, Sven Parkel, P Finnemore, John C. K. Barber, F Kooy, Bart Loeys, K Lachlan, John A. Crolla, Carl Baker, Nicola Foulds, N. Van der Aa, Viv K. Maloney, Luis A. Pérez-Jurado, B. B. A. De Vries, Tjitske Kleefstra, R. Pfundt, T.J.L. de Ravel, Ernie M.H.F. Bongers, Jeffrey W. Innis, Samantha J. L. Knight, L E Connell, Joris Vermeesch, Ants Kurg, Franki Speleman, S Huang, M van Kalmthout, Heather C Mefford, Marcelo A. Nobrega, Han G. Brunner, Christopher Geoffrey Woods, N. de Leeuw, B W M van Bon, Marco Fichera, Catherine Mercer, Clara Serra-Juhé, Sandra Janssens, C M A van Ravenswaaij, Ingrid Simonic, Björn Menten, Geert Mortier, Maurizio Elia, Alexandre C. Pereira, Lionel Willatt, J. P. Fryns, B Castle, Andrew J. Sharp, Katrin Õunap, A Oostra, Santina Reitano, Corrado Romano, David A. Koolen, H. Stewart, K Smith, Evan E. Eichler |
| المساهمون: | Clinical sciences, Medical Genetics, Erasmushogeschool Brussel, Chemical Engineering and Industrial Chemistry, Faculty of Engineering, Vrije Universiteit Brussel, Faculty of Psychology and Educational Sciences, Faculty of Law and Criminology |
| المصدر: | JOURNAL OF MEDICAL GENETICS, 46(8), 511-523. BMJ PUBLISHING GROUP JOURNAL OF MEDICAL GENETICS Journal of medical genetics Journal of Medical Genetics, 46, 8, pp. 511-23 Journal of Medical Genetics, 46, 511-23 |
| بيانات النشر: | BMJ Publishing Group, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Proband, Male, LINKAGE DISEQUILIBRIUM, Genetics and epigenetic pathways of disease [NCMLS 6], Chromosome Disorders, Disease, Bioinformatics, CHROMOSOME 22Q11, Epilepsy, PRADER-WILLI, Chromosome Disorders/genetics, Gene Duplication, Gene duplication, HUMAN GENOME, Copy-number variation, MOLECULAR CHARACTERIZATION, Child, Genetics (clinical), Segmental duplication, Oligonucleotide Array Sequence Analysis, Genetics, Chromosomes, Human, Pair 15/genetics, ABSENT-RADIUS SYNDROME, Microdeletion syndrome, syndrome, Pedigree, Female, pregnancy, Chromosome Deletion, Functional Neurogenomics [DCN 2], Adult, Adolescent, Child, preschool, SEGMENTAL DUPLICATIONS, COPY-NUMBER VARIATION, Biology, Article, Genomic disorders and inherited multi-system disorders [IGMD 3], Intellectual Disability, medicine, Humans, Clinical significance, Chromosome Aberrations, Chromosomes, Human, Pair 15, Infant, Newborn, Infant, medicine.disease, Intellectual Disability/genetics, Human medicine, ARRAY-CGH, MENTAL-RETARDATION |
| الوصف: | Contains fulltext : 80657.pdf (Publisher’s version ) (Closed access) BACKGROUND: Recurrent 15q13.3 microdeletions were recently identified with identical proximal (BP4) and distal (BP5) breakpoints and associated with mild to moderate mental retardation and epilepsy. METHODS: To assess further the clinical implications of this novel 15q13.3 microdeletion syndrome, 18 new probands with a deletion were molecularly and clinically characterised. In addition, we evaluated the characteristics of a family with a more proximal deletion between BP3 and BP4. Finally, four patients with a duplication in the BP3-BP4-BP5 region were included in this study to ascertain the clinical significance of duplications in this region. RESULTS: The 15q13.3 microdeletion in our series was associated with a highly variable intra- and inter-familial phenotype. At least 11 of the 18 deletions identified were inherited. Moreover, 7 of 10 siblings from four different families also had this deletion: one had a mild developmental delay, four had only learning problems during childhood, but functioned well in daily life as adults, whereas the other two had no learning problems at all. In contrast to previous findings, seizures were not a common feature in our series (only 2 of 17 living probands). Three patients with deletions had cardiac defects and deletion of the KLF13 gene, located in the critical region, may contribute to these abnormalities. The limited data from the single family with the more proximal BP3-BP4 deletion suggest this deletion may have little clinical significance. Patients with duplications of the BP3-BP4-BP5 region did not share a recognisable phenotype, but psychiatric disease was noted in 2 of 4 patients. CONCLUSIONS: Overall, our findings broaden the phenotypic spectrum associated with 15q13.3 deletions and suggest that, in some individuals, deletion of 15q13.3 is not sufficient to cause disease. The existence of microdeletion syndromes, associated with an unpredictable and variable phenotypic outcome, will pose the clinician with diagnostic difficulties and challenge the commonly used paradigm in the diagnostic setting that aberrations inherited from a phenotypically normal parent are usually without clinical consequences. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0022-2593 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d06febf35b11ebd2e18af4936f3b546Test https://hdl.handle.net/20.500.14017/5a89518b-61dd-4618-b6d6-30e671f9cca0Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8d06febf35b11ebd2e18af4936f3b546 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00222593 |
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