Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-5
pubmed:dateCreated
2006-11-20
pubmed:abstractText
Breast cancer accounts for 1 in 4 of all female cancers worldwide; approaching 13,000 women dying per year in the UK alone. Seventy five per cent of all diagnosed breast cancers are oestrogen receptor (ER) positive. Ovarian synthesis of oestrogens ceases at menopause and as breast cancer is more prevalent in postmenopausal women the non-ovarian sources of oestrogen are important in disease progression. There is now considerable evidence that associates increased breast cancer risk with prolonged exposure to oestrogens hence greater attention is now being given to determining whether the measurement of plasma oestrogen may assist in identifying chemoprevention target groups. Studies suggest that in most postmenopausal patients the intra-tumoural concentrations of oestrogens are up to 20-fold higher than those present in the plasma however, while the extent of biosynthesis of oestrogens within breast tissue is a major determinant of local exposure, plasma levels are a useful indicator of overall metabolism in peripheral tissues. As such it is important to understand factors that influence these measurements. This review summarises the impact of lifestyle such as body mass index, together with the role of genetic polymorphisms placed within the context of designing future epidemiological studies and breast cancer risk algorithms.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0960-0760
pubmed:author
pubmed:issnType
Print
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
250-5
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
The relationship between factors affecting endogenous oestradiol levels in postmenopausal women and breast cancer.
pubmed:affiliation
Academic Department of Biochemistry, Royal Marsden Hospital, Fulham Road, London SW3 6JJ, UK. Elizabeth.folkerd@icr.ac.uk
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't