Association between psoriasis severity and transforming growth factor beta(1) and beta (2) in plasma and scales from psoriatic lesions |
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Authors: | Flisiak Iwona Chodynicka Bozena Porebski Piotr Flisiak Robert |
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Affiliation: | Department of Dermatology and Venerology, Medical Acadamy, Bialystok, Sw Rocha, Poland. iflisiak@amb.ac.bialystok |
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Abstract: | Psoriasis is an inflammatory skin disorder with hyperproliferation of keratinocytes, that can be the result of insufficient inhibitory effect of transforming growth factors-beta (TGF-beta). The aim of this study was to evaluate an association between TGF-beta(1) and -beta(2) in plasma or scales from psoriatic lesions and the severity of the disease. TGF-beta concentrations were measured with an enzyme immunoassay in 41 patients with psoriasis. The mean plasma concentrations of TGF-beta(1) and TGF-beta(2) in patients were: 15.7 +/- 1.4 and 0.15 +/- 0.02 ng/ml respectively. It was also detectable in scales and varied from 24 to 1159 and from 0 to 2.95 pg/mg protein respectively. Plasma TGF-beta(1) correlated significantly with psoriasis area and severity index (PASI). Significant correlation was also demonstrated between TGF-beta(1) concentration in scales and sedimentation rate or the disease duration. There were no correlation between PASI and plasma TGF-beta(2), scales TGF-beta(1) and TGF-beta(2). The highest mean concentration of TGF-beta(1) in scales of patients with mild form of the disease (203 +/- 65 pg/mg protein) and the lowest in severe form (147 +/- 54 pg/mg protein) have been shown. These findings demonstrated association between PASI and plasma levels of TGF-beta(1), that should be considered as a possible indicator of psoriasis activity. |
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