Author/Authors :
Nazemian, Saman Faculty of Medicine - Mashhad University of Medical Sciences, Mashhad, Iran , Ghorban Sabbaq, Mahin Department of Nephrology - Qaem Hospital - Mashhad University of Medical Sciences, Mashhad, Iran , Nazemian, Fatemeh Department of Nephrology - Montserieh Hospital - Mashhad University of Medical Sciences, Mashhad, Iran , Salehi, Maryam Department of Community Medicine - Faculty of Medicine - Mashhad University of Medical Sciences, Mashhad, Iran , Madani Sani, Faeze Faculty of Medicine - Mashhad University of Medical Sciences, Mashhad, Iran
Abstract :
We studied plasma vitamin D level in 96 kidney transplant
recipients and its circannual rhythm. Blood samples were tested for
25-hydroxy vitamin D, parathyroid hormone, creatinine, phosphate,
and calcium levels in winter and summer 2014. The mean age was
41 years, and the mean transplant age was 6.1 years. Plasma levels
of 25-hydroxy vitamin D were 18.0 ± 15.0 ng/mL in winter and
18.3 ± 14.7 ng/mL in summer (P = .64). Parathyroid hormone was
inversely correlated with vitamin D level in both seasons (r = -0.044,
P < .001). There was no relationship between vitamin D and other
variables. Our study showed vitamin D deficiency is prevalent
among kidney transplant recipients both in winter and summer.
Also, vitamin D level did not rise from winter to summer. It is
recommended to routinely check on kidney transplant recipients’
vitamin D status.
Keywords :
vitamin D , sun exposure , season , parathyroid hormone , kidney transplantation
