[HTML][HTML] GAA-FGF14 disease: defining its frequency, molecular basis, and 4-aminopyridine response in a large downbeat nystagmus cohort

D Pellerin, F Heindl, C Wilke, MC Danzi, A Traschütz… - …, 2024 - thelancet.com
Background GAA-FGF14 disease/spinocerebellar ataxia 27B is a recently described
neurodegenerative disease caused by (GAA)≥ 250 expansions in the fibroblast growth …

[HTML][HTML] The genetic landscape and phenotypic spectrum of GAA-FGF14 ataxia in China: a large cohort study

R Ouyang, L Wan, D Pellerin, Z Long, J Hu, Q Jiang… - …, 2024 - thelancet.com
Background An intronic GAA repeat expansion in FGF14 was recently identified as a cause
of GAA-FGF14 ataxia. We aimed to characterise the frequency and phenotypic profile of …

Non‐GAA Repeat Expansions in FGF14 Are Likely Not Pathogenic—Reply to: “Shaking Up Ataxia: FGF14 and RFC1 Repeat Expansions in Affected and …

D Pellerin, P Iruzubieta, Ş Tekgül, MC Danzi… - Movement …, 2023 - Wiley Online Library
Relevant conflicts of interest/financial disclosures: DP, PI, ŞT, MCD, CA, M.-JD, MW, VR,
PJL, CB, and MR report no disclosures. MS has received consultancy honoraria from …

[HTML][HTML] Clinical and genetic keys to cerebellar ataxia due to FGF14 GAA expansions

JL Méreaux, CS Davoine, D Pellerin, G Coarelli… - …, 2024 - thelancet.com
Background SCA27B caused by FGF14 intronic heterozygous GAA expansions with at least
250 repeats accounts for 10–60% of cases with unresolved cerebellar ataxia. We aimed to …

Neurological disorders caused by novel non-coding repeat expansions: clinical features and differential diagnosis

E Vegezzi, H Ishiura, DC Bragg, D Pellerin… - The Lancet …, 2024 - thelancet.com
Nucleotide repeat expansions in the human genome are a well-known cause of
neurological disease. In the past decade, advances in DNA sequencing technologies have …

[HTML][HTML] Challenges facing repeat expansion identification, characterisation, and the pathway to discovery

JL Read, KC Davies, GC Thompson… - Emerging Topics in …, 2023 - portlandpress.com
Tandem repeat DNA sequences constitute a significant proportion of the human genome.
While previously considered to be functionally inert, these sequences are now broadly …

Spinocerebellar ataxia 27B: A novel, frequent and potentially treatable ataxia

D Pellerin, MC Danzi, M Renaud… - Clinical and …, 2024 - Wiley Online Library
Hereditary ataxias, especially when presenting sporadically in adulthood, present a
particular diagnostic challenge owing to their great clinical and genetic heterogeneity …

Complete nanopore repeat sequencing of SCA27B (GAA-FGF14 ataxia) in Japanese

S Miyatake, H Doi, H Yaguchi, E Koshimizu… - Journal of Neurology …, 2024 - jnnp.bmj.com
Background Although pure GAA expansion is considered pathogenic in SCA27B, non-GAA
repeat motif is mostly mixed into longer repeat sequences. This study aimed to unravel the …

[HTML][HTML] Discovery of new repeat expansion disorders in ataxia and beyond

M Bahlo, M Renaud, S Züchner - 2023 - movementdisorders.org
Late-onset cerebellar ataxia (LOCA) is a group of neurodegenerative disorders that manifest
with a progressive cerebellar syndrome after the age of 30 years and are often sporadic (ie …