background and objectives: vitamin d deficiency/insufficiency is a global health problem. the importance of this problem is doubled in growing children because of their increased need for skeletal growth. this investigation was performed firstly to assess vitamin d status, and secondly to examine its possible relationship with sex, residing area and duration of sun exposure in 9-12 years old ch...

Background: Gestational diabetes is one of the common causes of maternal and fetal complications. Due to fetal and maternal complications of diabetes, it is very important to reduce the prevalence of diabetes and its consequences. The relationship between vitamin D deficiency and type 2 diabetes has been reported. There is little information about the relationship between serum vitamin D levels...

Introduction: Normal exposure to sunlight results in the production of vitamin D in human body, which happens because of the interaction between ultraviolet radiation and cholesterol in skin. Exposure to sunlight is responsible for 90 percent of vitamin D needed for the body. Studies show that Iran is a country with high percentage of lack of vitamin D (83 percent). Based on pr...

vitamin d3 has a role in many autoimmune diseases and appears to play a function in controlling rheumatoid arthritis (ra). the aim of this study is to evaluate the relationship between serum level of vitamin d and ra disease activity score. the serum level of vitamin d in 75 ra patients referred to the rheumatology clinic of rasoul-akram hospital was measured. patients were classified into low,...

background: diabetes has become the next most widespread disease after cancer. recent studies have found that diabetes and moderate to severe vitamin d defi ciency are associated with reduced bone mineral content; therefore administration of vitamin d may correct these conditions. the purpose of this research is to compare the effect of vitamin d administration on bone to implant contact in dia...

vitamin d deficiency is prevalent in diabetes type 2 and this vitamin may be related to insulin action. this randomized controlled trial study was done to evaluate the effect of vitamin d supplementation on glucose control and insulin resistance in patients with diabetes type 2.participants of this randomized clinical trial study consisted of 28 patients with type 2 diabetes who received 100 mi...

background: chronic kidney disease is a progressive and irreversible loss of renal function. anemia is one of the main complications of end-stage renal disease (esrd) which is linked closely with other complications of the disease. the primary therapy for anemia in these patients is erythropoietin (epo). the goal of this study was to find the effect of vitamin d administration in addition to th...