Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9247
pubmed:dateCreated
2000-12-28
pubmed:abstractText
The rate of oesophageal adenocarcinoma is increasing in the western world and has a poor prognosis mainly because individuals present at a late stage. Attempts to intervene at an early stage of tumour progression have not proven cost effective, although lesions identified during surveillance programmes have a better prognosis. As a consequence, there has been renewed interest in strategies that might prevent the precursor lesion Barrett's oesophagus. Furthermore, there is an improved understanding of genetic and environmental interactions necessary for the clonal expansion and propagation of metaplastic premalignant lesions. Clearly, three mechanisms promote cancer progression--inheritance of germ-line mutations or polymorphisms, sporadic mutagenesis, and local epigenetic alterations. Locally produced cytokines and bile acids in the refluxate create a microenvironment that sets the scene for metaplastic transformation of the oesophageal epithelium, mainly by directly affecting metaplastic stem cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0140-6736
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
356
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2079-85
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Barrett's metaplasia.
pubmed:affiliation
Division of Medical Sciences, University of Birmingham, UK. J.jankowski@bham.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't