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In this study the effect of collagen-polyvinylpyrrolidone (collagen- PVP) vs. triamcinolone acetonide (Triam) in scleroderma (SSc) skin lesions was evaluated. Ten SSc patients were treated weekly with subcutaneous injections of 0.2 mL Triam (8 mg/mL) or 0.2 mL collagen- PVP (1.66 mg collagen). Skin biopsies were obtained from lesions before and after treatment. Tissue sections were evaluated by histology and immunohistochemistry (ELAM-1, VCAM- 1, IL- 1β ,TNF-α ,TGF-β 1 and PDGF). The corticoid- treated group showed abnormal tissue architecture while the biodrug- treatment restored cutaneous appendages and type I/III collagen proportion. Cytokine and adhesion molecule expression was almost inhibited with Triam, while collagen-PVP down- regulated it. Collagen-PVP improved the tissue architecture of SSc lesions and down regulated some proinflammatory parameters, without the side effects induced by corticoids.
Ten SSc patients were treated weekly with subcutaneous injections of 0.2 mL Triam (8 mg / mL). In this study the effect of collagen-polyvinylpyrrolidone (collagen- PVP) vs. triamcinolone acetonide (Triam) in scleroderma Skin biopsies were obtained from lesions before and after treatment. Tissue sections were evaluated by histology and immunohistochemistry (ELAM-1, VCAM-1, IL-1β, TNF-α, TGF- β 1 and PDGF). The corticoid-treated group showed abnormal tissue architecture while the biodrug- treatment restored cutaneous appendages and type I / III collagen proportion. Cytokine and adhesion molecule expression was almost inhibited with Triam, while collagen-PVP down-regulated it Collagen-PVP improved the tissue architecture of SSc lesions and down-regulated some proinflammatory parameters, without the side effects induced by corticoids.