Linked Life Data

12596044

Source:http://linkedlifedata.com/resource/pubmed/id/12596044

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-2-21
pubmed:abstractText
Exposure of female mice to estrogen during the perinatal period results in estrogen-independent persistent proliferation and cornification of the vaginal epithelium when the animals become adults. However, the occurrence of such irreversible vaginal changes is blocked by concurrent vitamin A treatment. Neonatal exposure to keratinocyte growth factor (KGF), which is a paracrine mediator of epithelial-mesenchymal interactions, also induces the persistent proliferation and cornification of the vaginal epithelium in adult mice. This study was designed to examine whether concurrent administration of vitamin A inhibits the development of the irreversible vaginal changes in mice exposed neonatally to KGF. The vaginal epithelium in ovariectomized 35-day-old mice given 5 microg of KGF for 3 days after birth possessed a significantly larger number of layers and increased thickness as compared to that in control mice. Concurrent injections of 100 IU of vitamin A acetate inhibited the occurrence of the irreversible proliferation of the vaginal epithelium. These changes were equal to the results observed when 20 micro g of estrogen with or without vitamin A acetate was administered for 5 days after birth. Unlike the case of estrogen treatment, the effect of neonatal treatment with KGF seemed to appear after a latent period, since the vaginal epithelium did not show proliferation soon after the treatment. We discuss the inhibitory effect of VA on the irreversible vaginal changes induced by neonatal KGF treatment with reference to endocrine disruption by neonatal estrogen exposure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
311
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
251-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Vitamin A prevents the irreversible proliferation of vaginal epithelium induced by neonatal injection of keratinocyte growth factor in mice.
pubmed:affiliation
Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan. ss17208@mail.ecc.u-tokyo.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't