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DOI: 10.1055/s-2007-966637
© Georg Thieme Verlag KG Stuttgart · New York
Wirkung von Linola®-Emulsion im Vergleich zu einer Hydrokortison-Emulsion im Testmodell einer irritativen Kontaktdermatitis
Effects of Linola®-Emulsion in Comparison to a Hydrocortison-Containing Emulsion in the Model of an Irritant Contact DermatitisPublication History
Publication Date:
09 July 2007 (online)
Zusammenfassung
Kortikosteroid-haltige Externa und lipidhaltige Emollientien sind die wichtigsten Ekzemtherapeutika. Externa mit ungesättigten Fettsäuren, insbesondere Linolsäure, werden seit Jahren erfolgreich zur Ekzembehandlung und Nachbehandlung eingesetzt. Ziel der Studie war es, die hautregenerierende Wirkung einer ungesättigte Fettsäuren enthaltenden Emulsion (Linola®) im Vergleich zu einer 0,25 %-Hydrokortison-haltigen (Ebenol®) Emulsion im Modell der irritativen Kontaktdermatitis zu untersuchen. Bei 30 Probanden wurde eine irritativ-toxische Kontaktdermatitis durch Applikation von Natriumlaurylsulfat unter einer okklusiven Patch-Testkammer induziert. Anschließend erfolgte die offene Applikation der beiden Prüfpräparate zweimal täglich über neun Tage. Beide Produkte führten zu einer signifikanten Erhöhung der durch Irritation verringerten Stratum corneum-Hydratation. Der durch die Irritation erhöhte TEWL wurde durch Behandlung mit beiden Präparaten verringert. Überraschenderweise reduzierte Linola®-Emulsion die Hautrötung als Marker der Entzündung nach 3 Tagen im gleichen Ausmaß wie die 0,25 %-Hydrokortison-haltige Emulsion. Zusammengefasst zeigte eine Emulsion mit ungesättigten Fettsäuren, insbesondere Linolsäure, im Modell der irritativen Kontaktdermatitis eine gleich gute regenerative und antientzündliche Wirkung wie eine 0,25 %-Hydrokortison-haltige Emulsion.
Abstract
Corticosteroids and lipid-containing emollients are of crucial importance for the treatment of dermatitis (eczema). Emollients containing unsaturated fatty acids in particular linoleic acid are successfully used for the treatment of dermatitis since years. The goal of the study was to examine skin regeneration of an emulsion containing unsaturated fatty acids (Linola®) in comparison to a 0.25 % hydrocortisone containing emulsion (Ebenol®) in the model of an irritant contact dermatitis. In 30 volunteers, an irritant contact dermatitis was induced by the application of sodium lauryl sulfate under an occlusive patch test chamber. Then the test products were applied for nine days twice daily. Both products led to a significant increase in skin hydration and a reduction of the elevated transepidermal water loss in contact dermatitis. Unexpectedly, Linola®-emulsion led to reduction of skin redness as a marker of skin inflammation to the same degree as hydrocortisone. In summary, an emollient containing unsaturated fatty acids, in particular linoleic acid, led to skin regeneration and anti-inflammation to the same degree as a 0.25 % hydrocortisone emulsion in the model of an irritant contact dermatitis.
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Prof. Dr. Dr. Ehrhardt Proksch
Universitäts-Hautklinik
Schittenhelmstraße 7
24105 Kiel
Email: eproksch@dermatology.uni-kiel.de