ABSTRACT
Vitamin D is an essential micronutrient for humans. Vitamin D functions are not limited to the regulation of bone; it plays many pleiotropic effects due to ubiquitous distribution of VDR (Vitamin D Receptor). The vitamin D deficiency (defined as plasma levels of 25 - OH - vitamin D < 30 ng / ml) is now a public health problem worldwide. It is therefore essential to define protocols for supplementation of vitamin D in the general population and in patients with Chronic Kidney Disease and indications on the use of different Vitamins D available.
Subject(s)
Dietary Supplements , Renal Insufficiency, Chronic/complications , Vitamin D Deficiency/complications , Vitamin D Deficiency/drug therapy , Vitamin D/therapeutic use , Vitamins/therapeutic use , Humans , Vitamin D/physiologyABSTRACT
Iron supplementation is essential for the treatment of anemia in the chronic kidney disease (CKD) population. Liposomial iron is a preparation of ferric pyrophosphate carried within a phospholipidic membrane. Compared to other oral formulations, it is well absorbed from the gut and demonstrates high bioavailability together with a lower incidence of side effects. The aim of our study was to evaluate the effectiveness of treatment with liposomial iron compared to intravenous iron in a CKD population with anemia and iron deficiency. Our study is a single-center, prospective, randomized, fourth-phase study. Enrollment for the study began in October 2011 and CKD 3, 4 and 5 patients were randomized to receive either intravenous iron or liposomial iron in a 1:2 ratio. The primary outcome was set as the increase of hemoglobin from baseline. The secondary outcomes were the reduction of erythropoietin dosage by at least 25% in patients treated with erythropoiesis-stimulating agents and an increase in serum ferritin of 100 ng/ml from baseline values. In the preliminary study, 21 patients were analyzed, 14 of whom were treated with oral liposomial iron and 7 with intravenous iron. The observed increase of hemoglobin at 8 weeks compared to baseline was similar in both groups but was significant in the liposomial group only.