Nickan Research Institute Journal of Parathyroid Disease 2345-6558 2 1 2014 01 01 Correlation of serum magnesium with serum levels of 25-hydroxyvitamin D in hemodialysis patients 13 15 EN Hamid Nasri Journal Article To find the association of serum magnesium levels, with serum 25-hydroxyvitamin D levels, in patients on regular hemodialysis, we conducted a study on 41 stable hemodialysis patients. We found a significant positive correlation of serum magnesium with 25-OH vitamin D (r= 0.40 p= 0.009). While magnesium deficiency increases serum fibroblast growth factor 23 concentration. Thus, the positive association of magnesium deficiency and fibroblast growth factor 23, further indicate the significance of magnesium and vitamin D deficiency, especially in hemodialysis patients.