Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes

<p>Abstract</p> <p>Background</p> <p>Prader-Willi syndrome (PWS) and Angelman syndrome (AS) are clinically distinct neurodevelopmental genetic disorders that map to 15q11-q13. The primary phenotypes are attributable to loss of expression of imprinted genes within this r...

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Main Authors: Birch Rachael, Clayton-Smith Jill, Ramsden Simon C, Buiting Karin
Format: Article
Language:English
Published: BMC 2010-05-01
Series:BMC Medical Genetics
Online Access:http://www.biomedcentral.com/1471-2350/11/70
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author Birch Rachael
Clayton-Smith Jill
Ramsden Simon C
Buiting Karin
author_facet Birch Rachael
Clayton-Smith Jill
Ramsden Simon C
Buiting Karin
author_sort Birch Rachael
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Prader-Willi syndrome (PWS) and Angelman syndrome (AS) are clinically distinct neurodevelopmental genetic disorders that map to 15q11-q13. The primary phenotypes are attributable to loss of expression of imprinted genes within this region which can arise by means of a number of mechanisms. The most sensitive single approach to diagnosing both PWS and AS is to study methylation patterns within 15q11-q13; however many techniques exist for this purpose. Given the diversity of techniques available, there is a need for consensus testing and reporting guidelines.</p> <p>Methods</p> <p>Testing and reporting guidelines have been drawn up and agreed in accordance with the procedures of the UK Clinical Molecular Genetics Society and the European Molecular Genetics Quality Network.</p> <p>Results</p> <p>A practical set of molecular genetic testing and reporting guidelines has been developed for these two disorders. In addition, advice is given on appropriate reporting policies, including advice on test sensitivity and recurrence risks. In considering test sensitivity, the possibility of differential diagnoses is discussed.</p> <p>Conclusion</p> <p>An agreed set of practice guidelines has been developed for the diagnostic molecular genetic testing of PWS and AS.</p>
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spelling doaj.art-81ff49934368480d90f3e51ba0b8e5392022-12-21T23:11:40ZengBMCBMC Medical Genetics1471-23502010-05-011117010.1186/1471-2350-11-70Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromesBirch RachaelClayton-Smith JillRamsden Simon CBuiting Karin<p>Abstract</p> <p>Background</p> <p>Prader-Willi syndrome (PWS) and Angelman syndrome (AS) are clinically distinct neurodevelopmental genetic disorders that map to 15q11-q13. The primary phenotypes are attributable to loss of expression of imprinted genes within this region which can arise by means of a number of mechanisms. The most sensitive single approach to diagnosing both PWS and AS is to study methylation patterns within 15q11-q13; however many techniques exist for this purpose. Given the diversity of techniques available, there is a need for consensus testing and reporting guidelines.</p> <p>Methods</p> <p>Testing and reporting guidelines have been drawn up and agreed in accordance with the procedures of the UK Clinical Molecular Genetics Society and the European Molecular Genetics Quality Network.</p> <p>Results</p> <p>A practical set of molecular genetic testing and reporting guidelines has been developed for these two disorders. In addition, advice is given on appropriate reporting policies, including advice on test sensitivity and recurrence risks. In considering test sensitivity, the possibility of differential diagnoses is discussed.</p> <p>Conclusion</p> <p>An agreed set of practice guidelines has been developed for the diagnostic molecular genetic testing of PWS and AS.</p>http://www.biomedcentral.com/1471-2350/11/70
spellingShingle Birch Rachael
Clayton-Smith Jill
Ramsden Simon C
Buiting Karin
Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
BMC Medical Genetics
title Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
title_full Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
title_fullStr Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
title_full_unstemmed Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
title_short Practice guidelines for the molecular analysis of Prader-Willi and Angelman syndromes
title_sort practice guidelines for the molecular analysis of prader willi and angelman syndromes
url http://www.biomedcentral.com/1471-2350/11/70
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