Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1992-3-27
pubmed:abstractText
Antipsoriatic agents have been shown to decrease skin levels of arachidonic acid and its metabolites including 12-monohydroxy-eicosatetranoic acid (12-HETE), and leukotriene B4 (LTB4). In addition, specific systemic and topical lipoxygenase inhibitors have been reported to be effective in the treatment of psoriasis. The objective of this study was to investigate the effect of a potent oral leukotriene biosynthesis inhibitor (MK886) in patients with chronic plaque psoriasis. Clinical response together with the changes of LTB4 levels in lesional skin biopsy specimens, and urinary leukotriene E4 (LTE4) excretion were evaluated. In addition, markers of inflammation, proliferation and keratinization were studied immunohistochemically. No change in clinical scores or lesional LTB4 levels were observed with a 10 1/3-day course of MK886. A statistically significant reduction in urinary LTE4 excretion was observed: mean LTE4 (ng/h) were 5.14 before treatment and 1.51 on day 11 with MK886; and 7.55 before treatment and 6.57 on day 11 with placebo treatment. Epidermal accumulation of polymorphonuclear leukocytes (PMN) tended to diminish in the MK886 treatment group. These results indicate that although a reduction (greater than 70%) in urinary LTE4 excretion was found, and a slight decrease of epidermal PMN accumulation was observed, no correlative changes in clinical scores or LTB4 levels in skin lesion were found with a short course of MK886.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1011-0283
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
278-85
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Clinical and biochemical effects of an oral leukotriene biosynthesis inhibitor (MK886) in psoriasis.
pubmed:affiliation
Department of Dermatology, University Hospital Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial