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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1987-8-7
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pubmed:abstractText |
We have studied the effect of systemic administration of etretin (Ro 10-1670) on the epidermal interleukin I (ILI) pool in the rat. Hairless rats were given varying doses of etretin intraperitoneally for 21 days, or a fixed dose for 2, 8 and 16 days. Abdominal skin was taken and processed for light microscopy, autoradiography (using [3H]-thymidine) and ILI assays. ILI was assayed in supernatants of epidermal extracts by both the lymphocyte activating factor (LAF) assay and the stimulation of prostaglandin E2 (PGE2) release from dermal fibroblasts. A significant increase in both LAF and PGE2 stimulatory activities was found during etretin administration. After 21 days' treatment with varying doses there was a two- to three-fold increase as compared to the controls, with a peak at 2 and 5 mg/kg. At a fixed dose a two-fold increase was found after 2 days and a three- to four-fold increase after 16 days; normal pretreatment values were restored 16 days after cessation of etretin. This is the first demonstration in vivo that a retinoid can modulate ILI content in a tissue. As epidermal ILI has been found to be decreased in psoriasis, its modulation by retinoids might have therapeutic significance.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0007-0963
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
116
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
615-22
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2954576-Acitretin,
pubmed-meshheading:2954576-Animals,
pubmed-meshheading:2954576-Dexamethasone,
pubmed-meshheading:2954576-Dose-Response Relationship, Drug,
pubmed-meshheading:2954576-Epidermis,
pubmed-meshheading:2954576-Injections, Intraperitoneal,
pubmed-meshheading:2954576-Interleukin-1,
pubmed-meshheading:2954576-Rats,
pubmed-meshheading:2954576-Tretinoin
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pubmed:year |
1987
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pubmed:articleTitle |
Systemic administration of etretin increases epidermal interleukin I in the rat.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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