Content » Vol 83, Issue 4

Letter to the Editor

Interleukin-18 Levels in the Plasma of Psoriatic Patients Correlate with the Extent of Skin Lesions and the PASI Score

DOI: 10.1080/00015550310016508


Interleukin-18 is a cytokine with a possible role in the pathogenesis of psoriasis. We examined subpopulations of peripheral blood lymphocytes and their expression of activation markers and correlated this with plasma levels of IL-18 and clinical disease severity in patients with psoriasis. We included 12 patients with psoriasis who had a PASI score from 15 to 48 and compared them to controls. IL-18 plasma concentrations were determined with an enzyme-linked immunosorbent assay. We observed a significant correlation between the IL-18 levels and the area of skin affected with psoriasis and the PASI score. We also observed an increase in NK cells and memory helper CD45RO+/CD4+cells.

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