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Table of Contents
Vol. 17, No. 1, 2004
Issue release date: January – February
Section title: Original Paper
Skin Pharmacol Physiol 2004;17:42–48
(DOI:10.1159/000074062)

Photoprotection by Cichorium endivia Extracts: Prevention of UVB-Induced Erythema, Pyrimidine Dimer Formation and IL-6 Expression

Enk C.D.a · Hochberg M.a · Torres A.b · Lev O.c · Dor I.c · Srebnik M.b · Dembitsky V.M.b
aDepartment of Dermatology, Hadassah University Hospital, Ein Kerem; bDepartment of Medicinal Chemistry and Natural Products, School of Pharmacy, Hebrew University of Jerusalem, and cDepartment of Environmental Science, Hebrew University of Jerusalem, Jerusalem, Israel

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: March 20, 2003
Accepted: July 22, 2003
Published online: December 22, 2003
Issue release date: January – February

Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 1

ISSN: 1660-5527 (Print)
eISSN: 1660-5535 (Online)

For additional information: http://www.karger.com/SPP

Abstract

In the gradual process of evolution, plants have developed natural sun protecting substances that enable continuous survival under direct and intense ultraviolet (UV) radiation. As part of our studies of plant-derived pigments that might constitute an alternative to conventional sunscreens, we have tested the ethanolic extracts of roots, stalks, and inflorescences of populations of wild Cichorium endivia subsp. divaricatum (Asteraceae) in terms of protection against sunburn, and in prevention of UVB-induced pyrimidine dimer formation and IL-6 mRNA expression in the human keratinocyte cell line, HaCaT. Using ELISA technique for detection of pyrimidine dimers and RT-PCR for detection of IL-6, we found that the ethanolic extract of C. endivia roots absorbs radiation in the UVB spectrum and partially prevents induction of pyrimidine dimers and IL-6 expression. Application of the root extract on the skin prior to UVB irradiation totally prevented erythema. Our findings suggest that C. endivia extracts might possess sun-protective qualities that make them useful as sunscreens.

© 2004 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: March 20, 2003
Accepted: July 22, 2003
Published online: December 22, 2003
Issue release date: January – February

Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 1

ISSN: 1660-5527 (Print)
eISSN: 1660-5535 (Online)

For additional information: http://www.karger.com/SPP


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