3 documents found, page 1 of 1
Whole genome sequencing analysis reveals post-zygotic mutation variability in m...
Tazelaar, Gijs H.P.; Hop, Paul J.; Seelen, Meinie; van Vugt, Joke J.F.A.; van Rheenen, Wouter; Kool, Lindy; van Eijk, Kristel R.; Gijzen, MarleenAmyotrophic lateral sclerosis is a heterogeneous, fatal neurodegenerative disease, characterized by motor neuron loss and in 50% of cases also by cognitive and/or behavioral changes. Mendelian forms of ALS comprise approximately 10-15% of cases. The majority is however considered sporadic, but also with a high contribution of genetic risk factors. To explore the contribution of somatic mutations and/or epigenet...
Sequence variations in C9orf72 downstream of the hexanucleotide repeat region a...
Nordin, Angelica; Akimoto, Chizuru; Wuolikainen, Anna; Alstermark, Helena; Forsberg, Karin; Baumann, Peter; Pinto, Susana; Carvalho, MamedeA large GGGGCC-repeat expansion mutation (HREM) in C9orf72 is the most common known cause of ALS and FTD in European populations. Sequence variations immediately downstream of the HREM region have previously been observed and have been suggested to be one reason for difficulties in interpreting RP-PCR data. Our objective was to determine the properties of these sequence variations with regard to prevalence, the...
A blinded international study on the reliability of genetic testing for GGGGCC-...
Akimoto, Chizuru; Volk, Alexander E.; van Blitterswijk, Marka; Van den Broeck, Marleen; Leblond, Claire S.; Lumbroso, Serge; Camu, WilliamBackground: The GGGGCC-repeat expansion in C9orf72 is the most frequent mutation found in patients with amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Most of the studies on C9orf72 have relied on repeat-primed PCR (RP-PCR) methods for detection of the expansions. To investigate the inherent limitations of this technique, we compared methods and results of 14 laboratories. Methods: The 1...