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Serum 25- OH Vitamin D Level in Psoriatic Patients and Comparison With Control Subjects

Author(s): Maleki M, Nahidi Y, Azizahari S, Meibodi NT, Hadianfar A

Abstract

Background: Vitamin D has been shown to have immunomodulatory effects, and previous studies have proposed a role of vitamin D deficiency in multiple autoimmune diseases, including psoriasis. Objectives: The aim of this study was to investigate serum vitamin D levels in psoriatic patients and compare them with levels in controls. Methods: This study was carried out in 50 psoriasis patients. Serum vitamin D was measured by enzyme-linked immunosorbent assay. Results: The mean serum vitamin D levels in psoriatic patients and controls were 14.92 ± 6.31 and 12.52 ± 4.54 ng/mL, respectively. The difference was not statistically significant (P = .06). The prevalence of vitamin D deficiency (<20 ng/mL) was 84.0% in psoriatic patients and 93.0% in controls (P = .21). Conclusions: Most of the patients with psoriasis had vitamin D deficiency, which may have contributed to the evolution of their psoriasis. However, considering the high prevalence of vitamin D deficiency in Iran, no difference was noted between the psoriatic patients and the controls.

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