rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
2002-1-22
|
pubmed:abstractText |
In this article, we studied the frequency of mutations in the presenilin (PSEN) 1, PSEN2 and amyloid precursor protein genes in a group of patients with late-onset Alzheimer's disease (AD). No pathogenic mutations were found, but a rare non-conservative single-nucleotide polymorphism was detected in the PSEN2 gene (P334R) in a large kindred with familial late-onset AD. No cosegregation was observed in this family. Uncommon polymorphisms can be easily mistaken as a pathogenic mutation when segregation is not analyzed. Family segregation study represents an essential point in considering the pathogenicity of these mutations. These uncommon single-nucleotide polymorphisms should be always taken into account in the genetic testing of AD. They may well have important implications for genetic counselling in AD.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
|
pubmed:issn |
0304-3940
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
318
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
166-8
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:11803125-Aged,
pubmed-meshheading:11803125-Aged, 80 and over,
pubmed-meshheading:11803125-Alzheimer Disease,
pubmed-meshheading:11803125-Amyloid beta-Protein Precursor,
pubmed-meshheading:11803125-Brain Chemistry,
pubmed-meshheading:11803125-DNA Mutational Analysis,
pubmed-meshheading:11803125-Female,
pubmed-meshheading:11803125-Genetic Testing,
pubmed-meshheading:11803125-Humans,
pubmed-meshheading:11803125-Male,
pubmed-meshheading:11803125-Membrane Proteins,
pubmed-meshheading:11803125-Mutation,
pubmed-meshheading:11803125-Pedigree,
pubmed-meshheading:11803125-Polymorphism, Single Nucleotide,
pubmed-meshheading:11803125-Presenilin-1,
pubmed-meshheading:11803125-Presenilin-2
|
pubmed:year |
2002
|
pubmed:articleTitle |
Uncommon polymorphism in the presenilin genes in human familial Alzheimer's disease: not to be mistaken with a pathogenic mutation.
|
pubmed:affiliation |
Neurology Service, Institut d'Investigacions Biomediques August Pi i Suyner (IDIBAPS), Hospital Clínic, Barcelona, Spain.
|
pubmed:publicationType |
Journal Article,
Case Reports,
Research Support, Non-U.S. Gov't
|