Source:http://linkedlifedata.com/resource/pubmed/id/10402253
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1999-8-20
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pubmed:abstractText |
Based on three colorectal cancer cell lines with specified K-ras status, a sensitive PCR-RFLP assay was established detecting one K-ras mutant among 106 wild-type cells. Using this assay for tissues of 124 colorectal cancer patients, 59 tumor (46%) and 11 mucosa samples (9%) were found to harbor a K-ras mutation. When using the same scalpel for collecting tumor and mucosa tissues (group A), 18% of the patients had a matching K-ras mutation in both tissues, but this coincidence was seen in 3% of patients only, when separate scalpels were used (group B). Thus we conclude that the sampling technique used for collecting specimens is a major contributor to the detection of K-ras mutations in normal appearing mucosa when a highly sensitive detection technique is used.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
1019-6439
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
15
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
391-8
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:10402253-Aged,
pubmed-meshheading:10402253-Colorectal Neoplasms,
pubmed-meshheading:10402253-Female,
pubmed-meshheading:10402253-Genes, ras,
pubmed-meshheading:10402253-Humans,
pubmed-meshheading:10402253-Intestinal Mucosa,
pubmed-meshheading:10402253-Male,
pubmed-meshheading:10402253-Mutation,
pubmed-meshheading:10402253-Polymerase Chain Reaction,
pubmed-meshheading:10402253-Polymorphism, Restriction Fragment Length,
pubmed-meshheading:10402253-Reference Values,
pubmed-meshheading:10402253-Sensitivity and Specificity,
pubmed-meshheading:10402253-Sequence Analysis, DNA,
pubmed-meshheading:10402253-Specimen Handling,
pubmed-meshheading:10402253-Tumor Cells, Cultured
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pubmed:year |
1999
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pubmed:articleTitle |
Sampling technique influences the detection of K-ras mutations in normal appearing mucosa of colorectal cancer patients.
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pubmed:affiliation |
Unit of Toxicology and Chemotherapy, German Cancer Research Centre, 69120 Heidelberg, Germany.
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pubmed:publicationType |
Journal Article
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