نتایج جستجو برای: cholecalciferol
تعداد نتایج: 4690 فیلتر نتایج به سال:
AIM In the present study, we aimed to assess serum concentrations of zinc (Zn), copper (Cu), iron (Fe), cadmium (Cd), lead (Pb), manganese (Mn), vitamins A (retinol), D (cholecalciferol) and E (α-tocopherol) in patients with coronary artery disease (CAD) and to compare with healthy controls. METHODS A total of 30 CAD patients and 20 healthy subjects were included in this study. Atomic absorpt...
Thin layer chromatography has been used for the analysis of natural and synthetic steroids in various environmental materials. In this work I steroid analysis in environmental materials such pharmaceuticals, plant products and other biological specimens. An overview of structural complexities and biological/nutritional aspects including hypocholesterolemic activities of phytosterols is provided...
The principal questions about the vitamin D topic are far to be resolved: in which children 25-hydroxyvitamin D blood testing is appropriate and how much cholecalciferol should be given in the absence of the test? Analyzing vitamin D status in a group of children cared by a "family pediatrician" in northeastern Italy we noted a high incidence of deficiency in asymptomatic preschool children wit...
Four patients presenting with heavy proteinuria, vitamin D deficiency and secondary hyperparathyroidism were treated with cholecalciferol for 1.5-3 years. Doses of 7143-14286 U/day were necessary to achieve the calcidiol target of >75 nmol/L. The effect of dosing on calcidiol levels was inconsistent and there was no apparent relationship between changing calcidiol levels and intact parathyroid ...
This is a case of an elderly female presenting with fever, cough and shortness breath. On presentation, she had tachypnea oxygen requirement 2 liters through nasal prongs. Her investigations were suggestive COVID-19 pneumonia bilateral ground-glass appearance on chest X-ray positive nasopharyngeal PCR swab. She low vitamin D levels presentation was given 200,000 units cholecalciferol, once dail...
BACKGROUND Maternal vitamin D status has been associated with bone mass of offspring in many, but not all, observational studies. However, maternal vitamin D repletion during pregnancy has not yet been proven to improve offspring bone mass in a randomised controlled trial. We aimed to assess whether neonates born to mothers supplemented with vitamin D during pregnancy have greater whole-body bo...
The main purpose of this study in order to estimate fat soluble vitamins contents Mackerel fillets from the northeastern coast of Tunisia. Retinol, α-tocophérol and cholecalciferol were analyzed using HPLC system. The experimental procedure used for extraction consisted on saponification, normal phase separation with UV and fluorescence detection for tocopherol and retinol. While cholecalcifero...
It was confirmed that delta 5,7-sterol delta 7-reductase activity was suppressed by cholecalciferol (vitamin D3) in the enzyme system consisted of microsomes and sterol carrier protein (SCP). The enzyme activity was significantly decreased in the combination with microsomes obtained from either vitamin D-deficient or vitamin D3-treated rat liver and with SCP obtained from vitamin D3-treated rat...
PD/CC@SiO 2 core–shell nanoparticles (PD: perylene dye, CC: cholecalciferol/vitamine D 3 ) show high colloidal stability in water, intense emission from red to yellow with quantum yields near unity, and excellent photostability.
Late-onset hypogonadism is defined as a combination of low testosterone (T) levels and typical symptoms and signs. A major area of uncertainty is whether T concentrations are always really sufficient to fully reflect Leydig cell (dys)function. Mild testicular alteration could be diagnosed only by additional biochemical markers, such as luteinizing hormone (LH) and 25-hydroxyvitamin D levels. Th...
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