Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1980-3-27
pubmed:abstractText
To investigate the relationship between LH-RH and TRH and the formation of castration cells and thyroidectomy cells, pituitary glands of 14-day old female rats were cultured with LH-RH or TRH for 10 days. Observed in these glands were external and internal zones, the former containing active, healthy appearing cells, and the latter consisting of many degenerative and necrotic cells. Gonadotrophs and thyrotrophs were readily demonstrated in the external zone of the organs by immunocytochemistry. Hypertrophic gonadotrophs (castration cells) and thyrotrophs (thyroidectomy cells) were observed only in the external zone by electron microscopy. Neither the typical signet-ring gonadotrophs nor intracisternal granules of thyroidectomy cells were seen in the present study. However, the hypertrophic gonadotrophs or thyrotrophs were similar to castration cells or thyroidectomy cells observed in the pituitary gland following castration or thyroidectomy. The results indicate that LH-RH and TRH directly stimulate the secretion of hormones and alter the morphological features of pituitary target cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
202
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
399-406
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Morphological changes of pituitary gonadotrophs and thyrotrophs following treatment with LH-RH or TRH in vitro.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.