Objective: To evaluate the efficacy of narrow-band ultraviolet B(NB-UVB) combined with calcipotriol in the treatment of psoriasis vulgaris(PV), to analyze the expression and significance of serum 1,25(OH)2D3 and IL-37 before and after treatment, and to explore the pathogenesis and treatment mechanism of PV. Methods: 35 patients with moderate to severe PV (group A) were treated with NB-UVB combined with calcipotriol for 12 weeks. The efficacy was evaluated by psoriasis area and severity index (PASI) and visual analogue scale (VAS). The levels of serum 1,25(OH)2D3, IL-37, IFN-γ were detected in group A and another 35 healthy volunteers(group B), and their correlations with PASI scores were analyzed. Results: After treatment, PASI scores, VAS, serum IL-37 and IFN-γ levels in group A were significantly decreased(P<0.01). The level of serum 1,25(OH)2D3 in group A was lower than that in group B(P<0.01), and there was no difference between group A and group B after treatment(P>0.05). The levels of IL-37 and IFN-γ in group A were higher than those in group B(P<0.01). After treatment, there was no difference in IL-37 between group A and group B (P>0.05), but there was a difference in IFN-γ(P<0.01). Correlations existed among PASI scores and 1,25(OH)2D3, PASI scores and IL-37, as well as among PASI scores and IFN-γ in the same period. Conclusion: NB-UVB combined with calcipotriol has a positive effect on PV. It can reduce serum IL-37 and IFN-γ levels, and increase serum 1, 25(OH)2D3level. |
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