Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1993-1-29
|
pubmed:abstractText |
Cimetidine, an H2-histamine antagonist used for the treatment of duodenal ulcers, has been shown to suppress granulocyte/macrophage colony forming cells (CFU-GM) in males. This study was initiated to examine the role of sex hormones on this cimetidine-induced suppression of CFU-GM. Preincubation of light-density, nonadherent bone marrow cells in male patients with 10(-6) M testosterone resulted in a modest decrease in the suppressive effect of cimetidine, whereas preincubation with 10(-6) M 17-beta-estradiol, for as little as 10 minutes, completely abolished the 50% reduction in colony numbers induced by cimetidine. Using supra-pharmacologic doses of cimetidine in order to detect CFU-GM suppression in female patients, identical results were obtained. Tamoxifen completely reversed this protective effect of estrogen and preincubation with hydroxyurea and the elimination of T cells from the system failed to alter any of these results, lending support to the likelihood that both cimetidine and estrogen directly affect marrow myeloid progenitor cells.
|
pubmed:commentsCorrections | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0301-472X
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
21
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
16-20
|
pubmed:dateRevised |
2004-11-17
|
pubmed:meshHeading |
pubmed-meshheading:8417952-Cell Division,
pubmed-meshheading:8417952-Child,
pubmed-meshheading:8417952-Child, Preschool,
pubmed-meshheading:8417952-Cimetidine,
pubmed-meshheading:8417952-Dose-Response Relationship, Drug,
pubmed-meshheading:8417952-Estradiol,
pubmed-meshheading:8417952-Female,
pubmed-meshheading:8417952-Granulocytes,
pubmed-meshheading:8417952-Hematopoietic Stem Cells,
pubmed-meshheading:8417952-Humans,
pubmed-meshheading:8417952-Male,
pubmed-meshheading:8417952-Tamoxifen,
pubmed-meshheading:8417952-Testosterone
|
pubmed:year |
1993
|
pubmed:articleTitle |
Estrogen blocks the cimetidine-induced suppression of CFU-GM.
|
pubmed:affiliation |
Department of Pediatrics, University of Florida College of Medicine, Gainesville.
|
pubmed:publicationType |
Journal Article
|