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External Access > PubMed LinkOut
ISSN Number: 1203-4754
Title: Journal of Cutaneous Medicine and Surgery
Volume Number: 17
Issue Number: 01
Page Number: 6
Published: 6 time(s) per Year

Phototherapy in Psoriasis: A Review of Mechanisms of Action

Background:Phototherapy is one of the most efficacious treatment options for psoriasis. New, emerging studies are beginning to define the biologic mechanisms by which phototherapy improves psoriasis.Methods:To provide an overview of the mechanisms thought to be responsible for the therapeutic effects of phototherapy, a review was performed on all relevant published studies in the Medline database from January 1, 1985, to August 15, 2011.Findings:Four categories of action were proposed in the literature to describe the effects of phototherapy in psoriasis: (1) alteration of the cytokine profile, (2) induction of apoptosis, (3) promotion of immunosuppression, and (4) all other mechanisms.Conclusions:Phototherapy acts through a combination of pathways to confer therapeutic benefits in psoriasis, and these different modalities may help explain its particular usefulness in treating this cutaneous disease.
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