Linked Life Data

3409792

Source:http://linkedlifedata.com/resource/pubmed/id/3409792

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1988-10-6
pubmed:abstractText
The aim of this study was to determine whether parenteral administration of steroids affects epithelial renewal in hamster stomach. Male golden hamsters received either hydrocortisone sodium succinate or saline intraperitoneally for three days. In the first experiment, hamsters were sacrificed 1 hr after injection of tritiated thymidine [( 3H]TdR) to label proliferating cells. In the second experiment, hamsters were sacrificed hourly after a single [3H]TdR injection up to 48 hr in order to determine cell cycle time by the method of fraction of labeled mitoses. In the third experiment, hamsters were sacrificed 1, 24, and 72 hr after [3H]TdR injection for the study of epithelial migration and cell turnover time. Sections of fundic and antral mucosae were prepared for light autoradiography. Steroid treatment caused no gross or microscopic injury to gastric mucosa, but the number of [3H]TdR-labeled cells as well as the thickness of the proliferative zone were reduced significantly in fundic mucosa, but not in antral mucosa. The study of the fraction labeled mitoses indicated that steroid treatment lengthened the cell cycle time in fundic mucosa, which was due primarily to prolonged G1 and DNA synthesis phases. Furthermore, epithelial migration was significantly slower in fundic mucosa after steroid treatment, which was associated with a prolonged cell turnover time. Thus, parenteral steroids depress the entire process of epithelial renewal in hamster fundic mucosa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0163-2116
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1064-9
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Effects of parenteral hydrocortisone sodium succinate on epithelial renewal in hamster gastric mucosa.
pubmed:affiliation
Department of Medicine, Nihon University School of Medicine, Tokyo.
pubmed:publicationType
Journal Article