Article
The C9orf72 hexanucleotide repeat expansion presents a challenge for testing laboratories and genetic counseling
23 Mar 2019
Abstract excerpt
C9orf72 hexanucleotide repeat expansions are the most common known cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Genetic testing for C9orf72 expansions in patients with ALS and/or FTD and their relatives has become increasingly available since hexanucleotide repeat expansions were first reported in 2011. The repeat number is highly variable and the threshold at which repeat size...
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