We investigated the effect of the potentially carcinogenic psoralen plus UVA radiation (PUVA) therapy on the expression of p53 in skin of psoriatic patients. p53 antibodies DO7 and Pab240, antibodies against PCNA and Ki67 and the avidin-biotin immunoperoxidase complex method were used in the immunohistochemical staining of biopsy samples from non-lesional and lesional skin of 23 patients who re...

The aim of this study was to investigate the effect of iontophoresis combined with local psoralen plus ultraviolet A (PUVA) therapy in chronic foot eczema. A randomized, observer-blinded, multi-centre study was conducted in 48 patients with chronic moderate-to-severe foot eczema randomized to one of 3 groups: In the iontophoresis group local bath-PUVA was preceded by iontophoresis. In the PUVA ...

Immunocytochemical techniques using antibodies to the specific T6 and Ia (Major Histocompability Complex, class 11, human HLA-Dr) antigens were used to determine the densities of epidermal Langerhans cells (LC) in psoriasis patients treated with the aromatic retinoid RO 10-9359. Fourteen patients were treated with the aromatic retinoid and were skin biopsied before, during and after therapy. Tw...

AIM Amyloidosis is a common disorder in adults. Secondary amyloidosis in patients with mycosis fungoides (MF) after photochemotherapy with 8-methoxypsoralen followed by ultraviolet A (PUVA) treatment has not been reported. Our aim is to describe the clinical and histological features of PUVA phototherapy-induced secondary amyloidosis. MATERIALS AND METHODS Sixty-one patients with MF treated w...

BACKGROUND AND OBJECTIVES A combination of 8-methoxypsoralen and ultraviolet-A radiation (PUVA) is used for the treatment of T cell-mediated disorders, including chronic graft-versus-host disease. The mechanisms of action of this therapy, referred to as extracorporeal phototherapy, have not been fully elucidated. PUVA is known to induce apoptosis in T lymphocytes collected by apheresis, however...

The association between psoriasis vulgaris and bullous pemphigoid is due to the still unclear autoimmune process. The common disease site is the dermo-epidermal junction or basal membrane zone (BMZ), with specific alterations for both diseases. Photochemotherapy (PUVA) is one of the therapeutic modalities for psoriasis and can trigger production of autoantibodies against antigens in the BMZ in ...

BACKGROUND PUVA photochemotherapy is indicated to treat mycosis fungoides, either as monotherapy in the earlier stages of the disease or in combination with other drugs in more advanced stages of evolution. OBJECTIVES – To evaluate PUVA photochemotherapy response in patients with mycosis fungoides. METHODS From January 1996 to November 2003, 17 patients with a diagnosis of mycosis fungoides wer...