Linked Life Data

16750487

Source:http://linkedlifedata.com/resource/pubmed/id/16750487

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-6-5
pubmed:abstractText
An electron microscopy immunocytochemical study was performed to determine the expression pattern of growth hormone (GH) in mosaic mutant mice adenohypophysis. In normal condition GH was restricted to the secretory granules of all growth hormone cells. Mosaic mice adenohypophysis contained growth hormone cells which have distinctive GH labeled secretory granules at the level seen in control animals. Ultrastructurally, some GH cells of mosaic mice presented abnormalities, but labeling intensity of secretory granules in these cells was always comparable to the basal condition. The striking findings presence of two forms (simple and activated) of folliculo-stellate cells (FS) in close association trough gap or tight junction with GH cells localized especially near the perivascular space. Frequently, in cytoplasm of FS cells, large clusters containing fragments of GH labeled cell were present. Additionally, the existence of large intracellular, electron-lucent spaces, with remnant cellular material in parenchyma of mosaic mutant mice adenohypophysis could suggest intensive process of GH-cell destruction. Our electron microscopy immunocytochemical results provide evidence for loss of GH cells in mosaic mice by phagocytosis. We suppose that impaired body growth observed in mosaic mutant male rats may be, at least partially, a consequence of an alteration in somatotropic axis activity. Loss of GH cells in mosaic mice by phagocytosis supported by FS cells may contribute to this effect.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0361-9230
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
94-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Growth hormone cell phagocytosis in adenohypophysis of mosaic mice: morphological and immunocytochemical electron microscopy study.
pubmed:affiliation
Department of Cell Ultrastructure, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland.
pubmed:publicationType
Journal Article, Comparative Study