Linked Life Data

15464722

Source:http://linkedlifedata.com/resource/pubmed/id/15464722

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-10-6
pubmed:abstractText
The effect of plasticizers phthalate esters (PEs) on health is a controversial subject. PEs are likely to be estrogenic, but the results on the potency obtained by many investigators are still inconsistent and the endocrine disrupting mechanism remains to be clarified. Here, we show that PEs acquire unequivocal binding affinities for human estrogen receptors (ERs) through ring hydroxylation that is possible in the environment and through metabolism. Unexpectedly, the acquired affinities of hydroxylated PEs (PEs-OH) were enhanced by elongation and branching of the ester alkyl chains. PEs-OH with alkyl chains more than six carbons may grope for a new binding site, which is inaccessible to PEs-OH with short chains. The strongest ER-binding affinity among the tested PEs-OH was close to that of diethylstilbestrol, the most potent synthetic ER-binder. Ring hydroxylation would be a new clue to the clarification of the endocrine disruption mechanism of PEs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0003-9861
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
431
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
16-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Unequivocal estrogen receptor-binding affinity of phthalate esters featured with ring hydroxylation and proper alkyl chain size.
pubmed:affiliation
Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't