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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-6-28
pubmed:abstractText
Aim-To determine whether c-Ki-ras mutations can be detected in bile from patients with biliary strictures caused by pancreatic cancer and other biliary tumours, with a view to developing bile c-Ki-ras mutations as a non-invasive diagnostic marker of pancreatic cancer.Methods-Bile was collected from 89 subjects (47 controls (including patients with bile duct stones or benign stricture), 20 patients with pancreatic cancer, 11 with cholangiocarcinoma, five with ampullary cancer, and six with metastatic biliary obstruction) referred for endoscopic retrograde cholangiopancreatography. DNA was extracted from bile and c-Ki-ras codon 12 mutations were detected using PCR and a restriction enzyme digestion method.Results-c-Ki-ras mutations were detected in 10 (50%) of 20 patients with pancreatic cancer, in one (9%) of 11 with cholangiocarcinoma, and in two (33%) of six patients with metastatic biliary obstruction (primary tumours: colon and prostate). C-Ki-ras mutations were not detected in the controls and patients with ampullary cancer.Conclusions-The sensitivity of this test is too low at 50% to recommend its use clinically, but with refinement has potential as a diagnostic marker for pancreatic cancer.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
1355-2910
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
M316-8
pubmed:dateRevised
2010-9-15
pubmed:year
1995
pubmed:articleTitle
Detection of c-Ki-ras mutations in bile samples from patients with pancreatic and biliary cancers.
pubmed:affiliation
Centre for Digestive Diseases, The General Infirmary at Leeds, Great George Street, Leeds LS1 3EX.
pubmed:publicationType
Journal Article