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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
16
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pubmed:dateCreated |
1995-9-7
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pubmed:abstractText |
We analyzed germline mutations of the BRCA1 gene in 18 Japanese breast cancer families and two Japanese breast-ovarian cancer families. In two site-specific breast cancer families, the same mutation was detected; a nonsense mutation at codon 63 encoding a truncated small protein. It was demonstrated that the mutant allele cosegregated with breast cancer patients within a family and was absent in healthy Japanese, suggesting a breast cancer-predisposing allele. The average age at diagnosis was 44 and 55 years in each family with BRCA1 mutation. No bilateral breast cancer patients were present in the BRCA1 mutation-positive families, although five were present in the BRCA1-negative families. No germline mutations of BRCA1 were detected in the two breast-ovarian cancer families examined in this study, although BRCA1 mutation plays a major role in breast-ovarian cancer families in Western countries. Thus, the proportion of families who inherit the mutated BRCA1 allele seems to be small among Japanese breast cancer families and Japanese breast-ovarian cancer families.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
55
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pubmed:geneSymbol |
BRCA1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3521-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7627958-Adult,
pubmed-meshheading:7627958-Age Factors,
pubmed-meshheading:7627958-BRCA1 Protein,
pubmed-meshheading:7627958-Breast Neoplasms,
pubmed-meshheading:7627958-DNA, Neoplasm,
pubmed-meshheading:7627958-Female,
pubmed-meshheading:7627958-Humans,
pubmed-meshheading:7627958-Japan,
pubmed-meshheading:7627958-Male,
pubmed-meshheading:7627958-Middle Aged,
pubmed-meshheading:7627958-Neoplasm Proteins,
pubmed-meshheading:7627958-Ovarian Neoplasms,
pubmed-meshheading:7627958-Pedigree,
pubmed-meshheading:7627958-Point Mutation,
pubmed-meshheading:7627958-Polymorphism, Genetic,
pubmed-meshheading:7627958-Polymorphism, Single-Stranded Conformational,
pubmed-meshheading:7627958-Transcription Factors
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pubmed:year |
1995
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pubmed:articleTitle |
Germline mutation of BRCA1 in Japanese breast cancer families.
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pubmed:affiliation |
Carcinogenesis Division, National Cancer Center Research Institute, Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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