View clinical trials related to Avitaminosis.
Filter by:it is a clinical trial to observe increase in serum vitamin D level and clinical symptoms after 3 different doses of cholecalciferol given either intramuscularly or oral.
Age affect insulin sensitivity and the metabolism, and vitamin D status was shown to have a correlation with markers of insulin resistance. That's why, we aimed in our trial to study the effect of vitamin D supplementation on glycemic markers and index of insulin resistance.
Prospective, monocentric study in open, aimed at evaluating the effects of supplementation with calcifediol on left ventricular function parameters in cardiopathic subjects undergoing major orthopedic surgery.
This study will encompass an analysis of an eventual association between vitamin D status (maternal during pregnancy, at birth or at 5 years) and hand grip strength at 5 years in children from Odense Child Cohort. Odense Child Cohort is a large-scale, prospective, population-based, follow-up study. Mothers and their children born from January 2010 to December 2012 and resident in the Municipality of Odense, Denmark, are followed from early pregnancy up to adulthood. Data is obtained from questionnaires and medical records and venous blood samples were drawn and stored at a biological bank. Low muscle strength in children has been linked to adiposity, cardiovascular disease and metabolic risk factors and low muscle strength in adolescence has been shown to be a risk factor of early adulthood mortality. There are not many studies on muscle strength in small children. There is some evidence of vitamin D concentrations in the blood having a positive correlation to upper body muscle strength in adolescent girls. Hypovitaminosis D defined as serum 25-hydroxyvitamin D <50nmol/L was evident in 27,8% of the pregnant women and 47,7% of the new-born children in Odense Child Cohort. Animal studies have shown an effect of vitamin D on regulation of muscle function and development. Studies on humans adults have shown that vitamin D deficiency can lead to myopathy. Myopathy in children as a result of hypovitaminosis D is not well-studied. Given the high prevalence of hypovitaminosis D, mild or severe vitamin D-associated myopathy may be prevalent in preschool children. The objectives of this study are 1) to create reference values and determine predictors of hand grip strength at five years, 2) to analyze the associations between vitamin D at different time points and hand grip strength at 5 years.
Fibromyalgia is a disease that significantly decreases the quality of life of people who suffer from it, has great repercussions at the socio-economic level due to the incapacity it produces. It is characterized by generalized pain, fatigue, sleep disorders, psychological stress and mental alterations, besides presenting painful points in different parts of the body to physical examination. Having few effective treatments is necessary to explore new options in their management to improve the general conditions of the patient. Previous studies have shown that patients with fibromyalgia have had low levels of vitamin D in the blood, a favorable response from post-vitamin D supplementation has been seen. This vitamin has been associated with pain pathways and with increased The perception of the same when it is in smaller amount. We will select patients with Fibromyalgia diagnosis from the external consultation of Rheumatology of the University Hospital "Dr. José Eleuterio González "of the UANL, over 18 years old who have not been previously supplemented with vitamin D, will initially be measured in blood of vitamin D, in addition to calcium as a safety measure, we will have a group that will only receive placebo and Another that will be supplemented with 50 thousand units weekly for 12 weeks, we will apply a questionnaire that measures pain scale and another one that measures the impact of the disease in the daily life of the patient, this will be done in a beginning and at the end of the 12 weeks .
Patients undergoing bariatric surgery often develop new vitamin and/or mineral deficiencies or exacerbate prior deficiencies after surgery. Several bariatric supplement products exist including oral tablets and transdermal patches. The purpose of this study is to observe the concentrations of serum micronutrients and determine how many deficiencies develop in patients who use a transdermal patch.
1. Title 2. Executive team 3. Research line 4. Summary 5. Research problem 6. Justification 7. Literature review 8. Objectives 9. Materials and methods 10. Dissemination of knowledge generated 11. Schedule of activities 12. Budget 13. References 14. Annexes
Vitamin D is a hormone with effects not only on the skeleton, but on most tissues in the body. Lack of vitamin D is associated with cardio-vascular disease (CVD), type 2 diabetes, cancer, infectious and immunological diseases, as well as risk factors for these diseases. However, intervention studies with vitamin D have been inconclusive regarding diseases and risk factors. This could be due to inclusion of subjects already vitamin D sufficient, and short and underpowered studies. In addition, there are indications that the dosing regimens may be important, so that daily doses with vitamin D are more efficient than intermittent doses, which so far have been generally used. This could be related to the concentration of circulating and thereby intracellular vitamin D concentrations, which probably is dependent on daily vitamin D doses. This will be tested in the present study where 60 subjects will be randomized to vitamin D 160 000 once, vitamin D 4000 IU/day, or placebo for four weeks. The primary endpoints will be effects on serum hepcidin and plasma cathelicidin after 4 weeks, with effects on serum PTH, RNA expression and microRNA in peripheral blood, telomerase activity in peripheral blood mononuclear cells and the ration between serum 1,25(OH)2D and 24,25(OH)2D as secondary endpoints.
An adequate micronutrient status during fetal life and infancy is important for optimal development. Dietary practices during pregnancy, lactation and infancy vary among populations and there is today no clear agreement on what constitutes the best diet, including micronutrient supplementation, during this period. There is consequently no clear agreement on what constitutes an optimal biochemical micronutrient status in mothers and infants. Due to substantial physiological changes in plasma volume, hormones, transport proteins and organ function during these periods, the ordinary reference levels or cut off levels used for biochemical assessment of micronutrient status are unsuited to these groups of patients. The objective of the study is to establish cut off levels for important vitamins and trace elements during pregnancy, lactation and infancy in order to ensure an optimal infant neurodevelopment and to study how micronutrient status influence the immunosystem.
To investigate the optimal initial and maintenance doses of vitamin D2 supplementation for the treatment of vitamin D insufficiency in Thai adults, and to determine the prevalence of and risk factors for hypovitaminosis D among Thai adults.