Founder Effects of Spinocerebellar Ataxias in the American Continents and the Caribbean.
Founder effects
Latin America and the Caribbean
MJD
Machado-Joseph disease
Prevalence
SCA10
SCA2
SCA3
SCA7
Spinocerebellar ataxia
Spinocerebellar ataxia type 10
Spinocerebellar ataxia type 2
Spinocerebellar ataxia type 3
Spinocerebellar ataxia type 7
Journal
Cerebellum (London, England)
ISSN: 1473-4230
Titre abrégé: Cerebellum
Pays: United States
ID NLM: 101089443
Informations de publication
Date de publication:
Jun 2020
Jun 2020
Historique:
pubmed:
23
2
2020
medline:
16
3
2021
entrez:
23
2
2020
Statut:
ppublish
Résumé
Spinocerebellar ataxias (SCAs) comprise a heterogeneous group of autosomal dominant disorders. The relative frequency of the different SCA subtypes varies broadly among different geographical and ethnic groups as result of genetic drifts. This review aims to provide an update regarding SCA founders in the American continents and the Caribbean as well as to discuss characteristics of these populations. Clusters of SCAs were detected in Eastern regions of Cuba for SCA2, in South Brazil for SCA3/MJD, and in Southeast regions of Mexico for SCA7. Prevalence rates were obtained and reached 154 (municipality of Báguano, Cuba), 166 (General Câmara, Brazil), and 423 (Tlaltetela, Mexico) patients/100,000 for SCA2, SCA3/MJD, and SCA7, respectively. In contrast, the scattered families with spinocerebellar ataxia type 10 (SCA10) reported all over North and South Americas have been associated to a common Native American ancestry that may have risen in East Asia and migrated to Americas 10,000 to 20,000 years ago. The comprehensive review showed that for each of these SCAs corresponded at least the development of one study group with a large production of scientific evidence often generalizable to all carriers of these conditions. Clusters of SCA populations in the American continents and the Caribbean provide unusual opportunity to gain insights into clinical and genetic characteristics of these disorders. Furthermore, the presence of large populations of patients living close to study centers can favor the development of meaningful clinical trials, which will impact on therapies and on quality of life of SCA carriers worldwide.
Identifiants
pubmed: 32086717
doi: 10.1007/s12311-020-01109-7
pii: 10.1007/s12311-020-01109-7
doi:
Substances chimiques
ATXN10 protein, human
0
ATXN2 protein, human
0
Ataxin-10
0
Ataxin-2
0
Repressor Proteins
0
ATXN3 protein, human
EC 3.4.19.12
Ataxin-3
EC 3.4.19.12
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
446-458Subventions
Organisme : CONACyT
ID : 258043
Organisme : CONACyT
ID : A1-S-10669
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