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                                1. Gene copy number variation in human and primate evolution- Prof. James Sikela
 
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                                2. Quantitative CNV testing in molecular diagnostics- Prof. Dimitri J. Stavropoulos
 
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                                3. Ethical considerations in dealing with CNV information- Dr. Holly Tabor
 
- Archived Lectures *These may not cover the latest advances in the field
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                                6. Population genetics of structural variation- Dr. Don Conrad
 
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                                7. Databases for CNV in control and disease populations- Dr. Lars Feuk
 
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                                8. Copy number variation in mental retardation- Dr. Joris Veltman
 
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                                9. The case for offering all women amniocentesis and chromosomal microarray analysis- Prof. Arthur Beaudet
 
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                                10. Structural variants and susceptibility to common human disorders- Prof. Xavier Estivill
 
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                                11. Indels, CNVs and the spectrum of human genome variation- Prof. Samuel Levy
 
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                                12. Genome structure and expression- Prof. Alexandre Reymond
 
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                                13. Quantitative CNV testing in molecular diagnostics- Prof. Martin Somerville
 
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                                14. Copy number variation in neuropsychiatric disorders- Dr. Christian Marshall
 
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                                15. Copy number variation in association studies of human disease- Dr. Steven McCarroll
 
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                                17. CNVs in human genomes- Prof. Chris Ponting
 
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                                19. Copy number variation- Prof. Steve Scherer
 
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                                21. Mendelian CNV mutations- Prof. Joris Vermeesch
 
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                                22. CNVs and clinical diagnosis- Dr. Brynn Levy
 
Printable Handouts
Navigable Slide Index
- Introduction
- Overview
- Williams-Beuren Syndrome (WBS)
- Clinical symptoms of WBS
- Characteristic facial features
- Unique cognitive and behavioural profile
- Spatial deficits in Williams-Beuren Syndrome
- What letter do you see?
- The forest or the trees
- Genetic basis of WBS
- Haploinsufficiency of elastin causes SVAS
- Genomic organization of 7q11.23
- The common WBS deletion
- Evolution of WBS segmental duplications
- Deletion mechanism
- Direct and inverted LCRs at 7q11.23
- Fishing for inversions
- Inversions of the WBS region
- Inversion does not cause clinical symptoms
- Inversion polymorphism as a genetic risk factor
- Genetic risk factor for genomic disease
- Familial recurrence of WBS
- Risk assessment in WBSinv-1 carriers
- Duplication of the WBS region (1)
- First duplication of the WBS region
- FISH detection of WBS duplication
- WBS duplication is reciprocal of the WBS deletion
- Clinical features associated with WBS duplication
- WBS duplication and expressive language
- Severe expressive language delay
- Duplication of the WBS region (2)
- Frequency of 7q11.23 duplication
- Common features of Dup(7)(q11.23q11.23)
- Sporadic features of Dup(7)(q11.23q11.23)
- Deletion vs. duplication of 7q11.24
- Molecular basis of WBS (1)
- NCF1 copy number and hypertension risk in WBS
- Molecular basis of WBS (2)
- Small deletions of the WBS region
- Dissecting genotype-phenotype relationships
- Summary
- Acknowledgements
Topics Covered
- Clinical overview of WBS
- Genetic basis of WBS, including the role of elastin -Mechanisms of rearrangement at the WBS locus
- Occurrence and implications of inversions of the WBS region
- Duplication of the WBS region
- Comparison of gain and loss at the WBS locus
- Genotype-phenotype relationships in WBS
Links
Series:
Categories:
Therapeutic Areas:
Talk Citation
Osborne, L. (2009, August 30). Williams-Beuren syndrome locus: a model of CNV affecting gene dosage and phenotypes [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved October 31, 2025, from https://doi.org/10.69645/IXNF9401.Export Citation (RIS)
Publication History
Financial Disclosures
- Dr. Lucy Osborne has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
Williams-Beuren syndrome locus: a model of CNV affecting gene dosage and phenotypes
A selection of talks on Clinical Practice
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