Linked Life Data

3780534

Source:http://linkedlifedata.com/resource/pubmed/id/3780534

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1986-12-24
pubmed:abstractText
We examined changes in estrogen receptors (ERs) in endometrial stromal and epithelial cells in cynomolgus macaques during artificially induced menstruation and repair. We used Silastic implants filled with either estradiol (E2) or progesterone (P) to treat spayed animals for 14 days with E2 followed by 14 days of E2 plus P. We then withdrew the P (but not the E2) implants and removed uteri 0, 0.5, 1, 2, 3, 4, 5, 7, and 14 days later. Uterine tissues were assayed biochemically for ER content, fixed for histology and frozen for immunocytochemistry of ER with monoclonal antiestrophilins. On day 0, ER levels in endometrium were low [1330 +/- 201 (n = 9) fmol/mg DNA]. An increase in total receptor was evident by 3-4 days of P withdrawal 2762 +/- 190 (n = 6) fmol/mg DNA; P less than 0.001]. Total receptor concentrations increased linearly with time from 0.5-7 days of P withdrawal (r = 0.88). On day 0, staining for nuclear ER in the glandular epithelium and stroma of zones I, II, and III of the endometrium was negative. Beginning at 12-24 h and continuing through 4 days of P withdrawal, nuclear staining became detectable and increased in intensity only in endometrial stromal fibroblasts and myometrial smooth muscle cells. The glandular epithelium of the endometrium did not develop nuclear staining until 5-7 days of P withdrawal, coincident with a 10-fold increase in the mitotic index of the epithelium of the upper zones. Thus, the increase in endometrial ER levels that occurred during the first 5 days of an induced luteal-follicular transition took place almost exclusively in stromal fibroblasts.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2467-75
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Immunocytochemical localization of estrogen receptors in the macaque endometrium during the luteal-follicular transition.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.