The effect of etretinate on the cyclo-oxygenase and lipoxygenase products of arachidonic acid metabolism in psoriatic skin.

Abstract:

:Eight psoriatic patients were treated with etretinate (50 mg daily) for 6 weeks. Skin chamber exudates from involved and uninvolved skin were assayed for arachidonic acid, 12-HETE, PGE2 and for neutrophil chemokinetic activity co-chromatographing with leukotriene B4, before and at weekly intervals during therapy. Pre-treatment concentrations of arachidonic acid, 12-HETE and leukotriene B4-like chemokinetic activity but not of PGE2 were elevated in involved skin when compared to uninvolved skin. The concentrations of arachidonic acid and 12-HETE declined during therapy but changes in PGE2 were minimal. LTB4-like activity was detectable in involved skin both before and after etretinate treatment. Clinically, scaling and infiltration improved but erythema was still evident.

journal_name

Br J Clin Pharmacol

authors

Wong E,Barr RM,Brain SD,Greaves MW,Olins LA,Mallet AI

doi

10.1111/j.1365-2125.1984.tb02499.x

subject

Has Abstract

pub_date

1984-10-01 00:00:00

pages

523-7

issue

4

eissn

0306-5251

issn

1365-2125

journal_volume

18

pub_type

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