Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-3-1
pubmed:abstractText
The aim of this study was to determine how the efficacy of tamoxifen is affected when combined with soy isoflavones. To address this, female Sprague-Dawley rats were placed on diets supplemented with tamoxifen, genistein, daidzein, or a combination of each isoflavone with tamoxifen; a week later mammary tumours were induced by 7,12 dimethylbenzanthracene. The most effective diet was the tamoxifen/daidzein combination. It reduced tumour multiplicity by 76%, tumour incidence by 35%, tumour burden by over 95%, and increased tumour latency by 62% compared with positive controls. The tamoxifen/daidzein combination diet was in all aspects more effective while the tamoxifen/genistein combination was less effective than the tamoxifen diet. The tamoxifen/daidzein diet significantly decreased 8-oxo-deoxyguanosine levels (an indicator of oxidative DNA damage) in the mammary glands. This study conclusively shows for the first time the combination of daidzein with tamoxifen produces increased protection against mammary carcinogenesis, while the combination of genistein with tamoxifen produces an opposing effect when compared with tamoxifen alone.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0959-8049
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
647-54
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
The soy isoflavone daidzein improves the capacity of tamoxifen to prevent mammary tumours.
pubmed:affiliation
Department of Surgical Oncology, University of Illinois at Chicago, 840 South Wood Street, Chicago, IL 60612, USA. andreasc@ucy.ac.cy
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.