Document Detail


Topically applied aspirin decreases histamine-induced wheal and flare reactions in normal and SLS-inflamed skin, but does not decrease itch. A randomized, double-blind and placebo-controlled human study.
MedLine Citation:
PMID:  12013195     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Topically applied aspirin has recently been reported to decrease histamine-induced itch in human volunteers. Our aim is to confirm this and to study the antipruritic ability of topical aspirin in inflamed skin. In 24 non-atopic volunteers, an inflammatory skin reaction was induced in forearm skin at 5 different sites by sodium lauryl sulphate contained in Finn Chambers. Aspirin 10%, aspirin 1%, mepyramine 5% and vehicle were applied to the inflamed and corresponding non-inflamed areas 20 min before itch induction with intradermal histamine injection. Itch and pain were scored on a visual analogue scale at regular intervals. Wheal and flare areas were measured. No difference in itch intensities was found after application of aspirin, mepyramine and vehicle, but more itch was induced in aspirin and mepyramine pretreated sites in inflamed skin compared to normal skin (p<0.05). In normal skin, flare areas were smaller after pretreatment with aspirin 10% (p<0.05) and mepyramine (p<0.001), as were wheal areas after mepyramine (p<0.01), compared to vehicle pretreatments. In inflamed skin, flare areas were smaller after pretreatment with aspirin 10% (p<0.01) and mepyramine (p<0.001), as were wheal areas after aspirin 10% (p<0.01), aspirin 1% (p<0.05) and mepyramine (p<0.001). We conclude that despite a significant skin penetration as measured by the influence on wheal and flare reactions, topically applied aspirin did not decrease histamine-induced itch in the model used.
Authors:
J S Thomsen; E Benfeldt; S B Jensen; J Serup; T Menné
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta dermato-venereologica     Volume:  82     ISSN:  0001-5555     ISO Abbreviation:  Acta Derm. Venereol.     Publication Date:  2002  
Date Detail:
Created Date:  2002-05-15     Completed Date:  2002-11-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370310     Medline TA:  Acta Derm Venereol     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  30-5     Citation Subset:  IM    
Affiliation:
Department of Dermatology, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark. jeth@gentoftehosp.kbhamt.dk
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MeSH Terms
Descriptor/Qualifier:
Administration, Topical
Adult
Analysis of Variance
Aspirin / administration & dosage*
Dermatitis, Irritant / drug therapy*
Double-Blind Method
Female
Histamine / pharmacology*
Humans
Injections, Intradermal
Male
Pain / chemically induced,  drug therapy,  physiopathology*
Probability
Prospective Studies
Pruritus / chemically induced,  drug therapy*
Pyrilamine / administration & dosage*
Reference Values
Sensitivity and Specificity
Severity of Illness Index
Skin Tests
Sodium Dodecyl Sulfate / pharmacology
Treatment Outcome
Chemical
Reg. No./Substance:
151-21-3/Sodium Dodecyl Sulfate; 50-78-2/Aspirin; 51-45-6/Histamine; 91-84-9/Pyrilamine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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