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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1990-4-5
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pubmed:abstractText |
Immature female rats received implants containing 17 beta-estradiol on postnatal day 28 at 0900 h, followed 24 h later by either blank capsules or progesterone. Between 1500-1600 h on the day of progesterone (or blank capsule) implantation, these rats, a group of unoperated or sham controls, and a group of estrogen-progesterone-treated immature male rats were killed and perfused, and their brains processed for immunocytochemistry of c-fos antigen and LHRH. LHRH neurons consistently expressed c-fos after estrogen-progesterone treatment in females but not males; in only one of four females examined was c-fos induced after estrogen treatment. No fos was associated with LHRH neurons in the control groups. The LHRH neurons that expressed c-fos were located in the preoptic area and anterior hypothalamus; more rostral LHRH cells did not appear stimulated. These data demonstrate that gonadal steroids, administered in a paradigm that predictably produces timed stimulation of LH release, induce c-fos in LHRH neurons. The induction of c-fos in LHRH neurons provides a potentially useful and powerful tool for studying LHRH activation at the cellular level.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Estradiol,
http://linkedlifedata.com/resource/pubmed/chemical/Gonadotropin-Releasing Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Progesterone,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-fos
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0013-7227
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
126
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1736-41
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2106434-Animals,
pubmed-meshheading:2106434-Brain,
pubmed-meshheading:2106434-Estradiol,
pubmed-meshheading:2106434-Gonadotropin-Releasing Hormone,
pubmed-meshheading:2106434-Immunohistochemistry,
pubmed-meshheading:2106434-Neurons,
pubmed-meshheading:2106434-Progesterone,
pubmed-meshheading:2106434-Proto-Oncogene Proteins,
pubmed-meshheading:2106434-Proto-Oncogene Proteins c-fos,
pubmed-meshheading:2106434-Tissue Distribution
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pubmed:year |
1990
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pubmed:articleTitle |
Luteinizing hormone-releasing hormone neurons express c-fos antigen after steroid activation.
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pubmed:affiliation |
Department of Physiology, University of Pittsburgh, Pennsylvania 15217.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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