Vitamin D Levels in Takayasu's Arteritis and a Review of the Literature on Vasculitides

Alibaz-Oner F., Asmaz-Haliloglu O., Gogas-Yavuz D., Can M., HAKLAR G., Direskeneli H.

JOURNAL OF CLINICAL LABORATORY ANALYSIS, cilt.30, sa.5, ss.529-533, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 30 Sayı: 5
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1002/jcla.21898
  • Dergi Adı: JOURNAL OF CLINICAL LABORATORY ANALYSIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.529-533
  • Anahtar Kelimeler: Takayasu's arteritis, vitamin D deficiency, vasculitis, BEHCETS-DISEASE, D DEFICIENCY, 1-ALPHA,25-DIHYDROXYVITAMIN D-3, AUTOIMMUNE-DISEASES, T-CELLS, SUSCEPTIBILITY, PATHOGENESIS, EXPRESSION, 1,25-DIHYDROXYVITAMIN-D3, POLYMORPHISMS
  • Marmara Üniversitesi Adresli: Evet

Özet

Objective: Takayasu's arteritis (TAK) is a chronic, large-vessel vasculitis. Vitamin D, as a steroidal hormone, has recently been shown to have immunoregulatory and immunosuppressive effects. Low vitamin D levels are demonstrated in various autoimmune disorders. The aim of this study is to investigate vitamin D levels in patients with TAK. A comprehensive review of vitamin D levels in systemic vasculitides (SVs) is also performed. Methods: The study included 36 patients with TAK, 28 patients with Behc, et's disease (BD) as disease control and 30 sex-matched healthy controls. Plasma 25-hydroxy vitamin D (25(OH) vit D) levels were measured with high-performance liquid chromatography. "Deficiency" was defined as 25(OH) vit D levels below 25 nmol/l and "insufficiency" as below 50 nmol/l. Results: Plasma 25(OH) vit D levels were significantly lower in TAK patients (16.93 +/- 10.62 nmol/l) than healthy controls (64.63 +/- 21.82 nmol/l). Vitamin D level in BD patients (38.8 +/- 20.9 nmol/l) is lower than healthy controls but higher than TAK patients. The frequency of vitamin D deficiency was 83.3% in patients with TAK compared to 3.3% in healthy controls. Plasma 25(OH) vit D levels were same between clinically active and inactive patients. In literature review, very few studies were found to investigate vitamin D in SVs. Conclusion: We observed a high prevalence of vitamin D deficiency in patients with TAK. As various immune effects of vitamin D on mononuclear cells and arterial endothelium is shown, vitamin D deficiency can be a predisposing factor for immune activation in SV. We therefore suggest monitorization and replacement of vitamin D status in all TAK and other SV patients. (C) 2015 Wiley Periodicals, Inc.