lunes, 10 de noviembre de 2014

American College of Medical Genetics and Genomics Standards and Guidelines for Clinical Genetics Laboratories, 2014 edition: technical standards and guidelines for Huntington disease : Genetics in Medicine : Nature Publishing Group

American College of Medical Genetics and Genomics Standards and Guidelines for Clinical Genetics Laboratories, 2014 edition: technical standards and guidelines for Huntington disease : Genetics in Medicine : Nature Publishing Group



American College of Medical Genetics and Genomics Standards and Guidelines for Clinical Genetics Laboratories, 2014 edition: technical standards and guidelines for Huntington disease

Genetics in Medicine
 
(2014)
 
doi:10.1038/gim.2014.146
Received
 
Accepted
 
Published online 

Abstract

Huntington disease is an autosomal-dominant neurodegenerative disease of mid-life onset caused by expansion of a polymorphic trinucleotide (CAG) repeat. Variable penetrance for alleles carrying 36–39 repeats has been noted, but the disease appears fully penetrant when the repeat numbers are >40. An abnormal CAG repeat may expand, contract, or be stably transmitted when passed from parent to child. Assays used to diagnose Huntington disease must be optimized to ensure the accurate and unambiguous quantitation of CAG repeat length. This document provides an overview of Huntington disease and methodological considerations for Huntington disease testing. Examples of laboratory reports are also included.
Genet Med advance online publication 30 October 2014

Keywords:

 
clinical testing; Huntington disease; polyglutamine; practice guideline; trinucleotide repeat disorder

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