IU = international unitRAE = retinal activity equivalentsDFE = dietary folate equivalentNE = niacin equivalentmg = milligrammcg = μg = microgramVitamin Unit Conversions and CalculationsThe information below provides an approximate vitamin conversion from standardized units (IU, RAE, DFE, NE) to ...
Chronic airway inflammatory and infectious respiratory diseases are the most common medical respiratory conditions, associated with significant morbidity and mortality. Vitamin D (1,25(OH)2D3) deficiency has been shown to be highly prevalent in patients with chronic airway inflammatory and infectious dis...
Group I received a single daily oral dose of vitamin D3 (1000 IU, stabilized aqueous solution of cholecalciferol) for 2 weeks, in addition to daily subcutaneous (s.c.) human recombinant erythropoietin (2500 IU/kg) for 5 days and i.m. or i.v. magnesium sulfate 250 mg/kg, whereas ...
The biology of vitamin D3 is well defined, as are the effects of its active metabolites on various cells, including mesenchymal stromal/stem cells (MSCs). However, the biological potential of its precursor, cholecalciferol (VD3), has not been sufficientl
Fig. 2: Localization and quantitative comparison of 7-DHC, SGAs and cholesterol in wild-type and7-DR2-knockout lines and conversion of 7-DHC inSl7-DR2knockouts to vitamin D3by UVB irradiation. a, MALDI images of 7-DHC (m/z367.33) and its laser-induced derivative ion (m/z365.32), ...
cholecalciferol to 25(OH)D is dependent only on substrate availability, whereas the conversion of 25(OH)D to 1,25(OH)2D is tightly regulated in response to serum Ca2+and PTH. 25(OH)D has a significantly longer half-life than 1,25(OH)2D: approximately 2–3 weeks compared with 4–6 ...
Vitamin D deficiency is prevalent worldwide, but some groups are at greater risk. We aim to evaluate vitamin D levels in different occupations and identify groups vulnerable to vitamin D deficiency. An electronic search conducted in Medline, Embase, the
SOD activity unit was defined as the amount of SOD required to catalyse the conversion of 1 μmole of superoxide radical anions into oxygen molecules and hydrogen peroxide in one minute. 2.6.3. Glutathione peroxidase assay The antioxidant factor glutathione peroxidase (GPx) plays a crucial role ...
Vitamin D is produced in the skin upon exposure to ultraviolet light (sunlight). It is activated in two steps to function as a key regulator of mineral ion homeostasis. Vitamin D becomes bound to the vitamin D binding protein, DBP, in the circulation and is transported to the liver where ...
Overall, levels of 25(OH)D differed significantly in proportion to vD dose. There were no effects of vD on illness incidence or growth. Low lev- els were common, with 7.8% of levels being <50 nmol/l and 15 infants having 2 to 4 low levels. Conclusion: The four doses of vD ...