Abstract:
:Tay-Sachs disease is a rare autosomal recessive neurodegenerative disorder that results from mutations in the HEXA gene, leading to β-hexosaminidase A (HexA) α subunit deficiency. An unusual variant of Tay-Sachs disease is known as the B1 variant. Previous studies indicated that, in northern Portugal, this is not only the most common variant but also one of the most prevalent lysosomal storage diseases. Additionally, this variant might also show a higher prevalence in populations of Portuguese and Spanish ancestry. A single mutation is invariably present in at least one of the alleles of B1 variant patients, HEXA mutation c.533G >A. To implement a method for c.533G >A testing in individuals and populations, we have optimized two distinct mutation analysis techniques, one based on restriction fragment length polymorphism analysis and the other based on allelic discrimination. We present the comparison of both methods and their advantages. Mutation screening by allelic discrimination proved to be particularly useful for the studying of large samples of individuals. It is time saving and highly reproducible, and under the conditions used, its cost is lower than the cost of polymerase chain reaction-based restriction fragment length polymorphism analysis.
journal_name
Genet Test Mol Biomarkersjournal_title
Genetic testing and molecular biomarkersauthors
Ribeiro D,Duarte AJ,Amaral Odoi
10.1089/gtmb.2010.0129subject
Has Abstractpub_date
2011-03-01 00:00:00pages
123-6issue
3eissn
1945-0265issn
1945-0257journal_volume
15pub_type
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析
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journal_title:Genetic testing and molecular biomarkers
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journal_title:Genetic testing and molecular biomarkers
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journal_title:Genetic testing and molecular biomarkers
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pub_type: 杂志文章,meta分析,评审
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
doi:10.1089/gtmb.2008.0103
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析
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journal_title:Genetic testing and molecular biomarkers
pub_type: 信件
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,评审
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2020.0099
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journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析
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pub_type: 杂志文章
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