Abstract
Oxidative damage may be responsible for the pathogenesis and complications of many diseases. Vitamin D deficiency has been suggested as a potential mediator of various extra-skeletal pathologies. However, there are limited data on anti-oxidant properties of vitamin D. Forty-one subjects with vitamin D deficiency and 30 healthy controls were enrolled into the study. The levels of total anti-oxidant status (TAS), total oxidant status (TOS), ischemia-modified albumin (IMA), oxidized-low density lipoprotein (ox-LDL), high-sensitivity C-reactive protein (hs-CRP) and fibrinogen were measured in both groups. The measurements were repeated in 17 patients after the replacement of vitamin D. Serum IMA and TOS levels were significantly higher (p < 0.001 and p = 0.035, respectively), while TAS levels were significantly lower in patients, compared to controls (p < 0.001). Additionally, fibrinogen was significantly higher in patients than controls (p = 0.003), while ox-LDL and hs-CRP levels were similar between two groups. After the replacement of vitamin D, TAS level significantly increased (p = 0.037), and TOS and fibrinogen levels significantly decreased (p = 0.043 and p = 0.010, respectively). Vitamin D levels were negatively correlated ...Continue Reading
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