期刊
PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE
卷 25, 期 3, 页码 119-123出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1600-0781.2009.00418.x
关键词
psoriasis; UVB therapy; vitamin D
类别
资金
- federal government under the ALF agreement
- Goteborg Medical Society
Phototherapy of psoriasis is an effective treatment. In addition to standard broadband ultraviolet radiation B (UVB), (280-320 nm), narrowband phototherapy (NBUVB) (monochromatic UV between 311 and 312 nm) has become an important treatment for psoriasis. The same wavelength range of UVB (290-315 nm) induces synthesis of vitamin D. The aim was to compare the effect of broadband with NBUVB therapy on vitamin D synthesis in patients with psoriasis. Sixty-eight Caucasian patients (17 women and 51 men) mean age 54.1 +/- 16.0 years, with active plaque psoriasis, were treated with broadband UVB (n=26) or NBUVB (n=42) two to three times/week for 8-12 weeks. The serum concentrations of 25-hydroxyvitamin D (25(OH)D3), 1,25-dihydroxyvitamin D (1,25(OH)(2)D3), intact parathyroid hormone (PTH), calcium and creatinine were measured before the first exposure and after the last dose of radiation. In broadband UVB treated patients, 25(OH)D3 increased from 37.9 +/- 16.9 to 69.4 +/- 19.7 ng/ml (P < 0.0001) and in patients treated with NBUVB from 34.8 +/- 11.9 to 55.3 +/- 17.6 ng/ml (P < 0.0001) and P=0.008 between the treatment groups. PTH decreased on broadband UVB (P < 0.05). The serum concentrations of 1,25(OH)(2)D3, calcium or creatinine remained unaltered. Serum 25(OH)D3 in psoriasis patients increased less with NBUVB than with broadband UVB phototherapy. Psoriasis improved on both regimens.
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