View clinical trials related to Vitamin D Deficiency.
Filter by:There are around 115,000 people in the United Kingdom suffering with Crohn's Disease (CD). CD can cause inflammation and ulcers to develop anywhere within the gut. Symptoms of the disease include diarrhoea, abdominal pain and nutritional problems including vitamin D deficiency. Around half of people with CD are likely to have vitamin D deficiency. Research has shown that treating vitamin D deficiency in people with CD might help to improve the symptoms of the disease. However, there are no clear guidelines on how to detect or treat vitamin D deficiency in people with CD. There will be two parts to the planned research involving three hospitals in Birmingham. Part 1 is a vitamin D screening study, where adults will be asked to have a finger-prick blood test to check their vitamin D levels. They will complete short diet and lifestyle questionnaires. Adults found to have vitamin D deficiency in part 1 may be invited to join part 2 of the research. Part 2 is a vitamin D supplementation study where participants will be given a daily vitamin D capsule to take by mouth for 6 months. They will be randomly allocated to 2 different groups with each group receiving a different dose of vitamin D. Participants will have blood tests at the start, after 3 months and after 6 months. They will complete quality of life questionnaires at the start and after 6 months. The last appointment will be a final follow up appointment after 9 months. This research is important to help determine: - Which dose of vitamin D is most effective at treating vitamin D deficiency in people with CD - If symptoms of CD improve when vitamin D deficiency is treated.
- Vitamin D considers as the most potent effect on calcium level in blood it was found that vitamin D target mainly bone tissue intestine and kidney for calcium absorption In bone, vitamin D stimulates mainly the activity of osteoclasts osteoblast activity on the other hand it increases the production of extracellular matrix proteins by different osteoblastic activity. Vitamin D also increase intestinal calcium absorption and regulate synthesis and secretion of parathyroid hormone (PTH) Implant consider as one of the most successful treatment modalities that usually used in dental clinics for restoring single or multiple missed teeth knowing that successful rate of dental implant may reach up to 99% however there are many different techniques for implant placement they mainly depend on the same procedure for implant placement even sequential drilling technique or single drilling technique some paper supported that sequential drilling is much better than single drilling technique on other hand some assume that single drilling is much better as it save time effort material less bone trauma & less heat generation although there are many studies performed on sequential drilling & single drilling techniques we still have a gap for understanding the ideal technique for implant placement in patients with vitamin D deficiency
The overall objective of the study is to determine the pharmacokinetics of Vitamin D supplementation in children who have asthma and are overweight or obese.
Hidradenitis suppurativa (HS) is a chronic inflammatory, debilitating skin disorder. The exacerbating factors of HS include nutrition and adiposity. The objective of this study was to investigate the relationships between body composition and the adherence to the Mediterranean diet (MD) with the severity of HS in a sample of naïve-treatment patients with HS. In the wake of this evidence, in the study to investigate the relationships between nutritional status, the adherence to the MD, body composition, and the severity of HS in a sample of naïve-treatment patients with HS compared to control group matched for sex, age, and body weight.
Gestational diabetes mellitus (GDM) is defined as any degree of glucose intolerance with the onset or first recognition during pregnancy. The prevalence of GDM varies from 1-14% due to its variability worldwide, depending on the ethnicity, race, and the diagnostic criteria being applied by each country. In addition to this, approximately 7% of all pregnancies are affected by GDM, ending up more than 200,000 women with GDM per year. A recent study of literature research indicated that Middle East and North Africa had the highest prevalence (median, 12.9%) while Europe had the lowest prevalence (median, 5.8%) in the world. In Turkey the prevalence of GDM ranges between 4-10%, based on the reports in different studies. As a growing health concern, GDM has been associated with short and long-term detrimental health outcomes for women and their offspring. Maternal adverse effects of GDM are preeclampsia, elevated risk of development of hypertension, type 2 diabetes mellitus (T2DM), urinary tract infection and comorbidities following delivery. Macrosomia, neonatal jaundice, birth trauma, respiratory distress syndrome, hypoglycemia are included in short term consequence for the neonates whereas risk for development of impaired glucose tolerance, T2DM, obesity, vascular disorders are long term adverse effects on infant's health. The known risk factors for GDM include family history of T2DM, maternal overweight and obesity, advanced maternal age, history of GDM, having macrosomic infant previously, prior fetal death, and race/ethnicity. In addition to these risk factors, recent studies have been suggested that maternal vitamin D deficiency may be associated with a higher risk of GDM. Vitamin D deficiency during the pregnancy has been associated with adverse outcomes for the pregnant women, such as gestational diabetes mellitus, urinary tract infection, preeclampsia, caesarean section during labour [25]. Furthermore, infants born to mothers with lower vitamin D levels have been found to be associated with elevated risk of small for gestational age, low birth weight in the neonatal period, increased risk for cardiovascular disease, respiratory illnesses, type 2 diabetes mellitus in childhood and adulthood. The aim of this study was to compare the serum 25(OH)D levels of women with and without gestational diabetes mellitus (GDM) and identify the serum 25(OH)D level associated with GDM during pregnancy.
Polycystic ovary syndrome (PCOS) is a common endocrine disorder in reproductive age women, which causes disordered follicle growth and ovulation resulting in infertility. In addition women with PCOS have hyperandrogenemia and a dysregulated hormonal profile, resulting in altered feedback on the hypothalamic-pituitary-gonadal (HPG) axis. Obesity, insulin resistance, vitamin D (VD) deficiency and ageing worsen the symptoms. The gonadotrophins - follicle stimulating hormone (FSH) & luteinising hormone (LH), along with the pregnancy hormone human chorionic gonadotrophin (hCG) have structural similarities. The altered levels of FSH and LH in women with PCOS cause production of hCG from the brain leading to false positive pregnancy tests. Part one of this project will involve the investigation of this over-production of hCG in urine and serum of women with PCOS to develop suitable ovulation and pregnancy test kits, in collaboration with Swiss Precision Diagnostics (SPD). In Part two of the project, we would like to see if intervention with VD supplementation and/or using myo-inositol supplement compared with metformin (insulin sensitiser), improves prediabetes, distribution of fat/water content, weight loss and menstrual cyclicity in women with PCOS. We aim to correlate these interventions with particular serum & urine markers to develop better diagnostic tools.
Investigators will examine arterial stiffness and pulse waveform analysis. Subjects with vitamin D insufficiency will be recruited. A double blind randomized controlled study will examine the effects of standard dose vitamin D3 (800 IU) versus higher dose vitamin D3 (5000 IU)-given on a daily basis.In order to understand mechanisms of action by which vitamin D would improve arterial stiffness investigators will use biomarkers. Oxidative and inflammatory stress will be measured by plasma F2-isoprostanes and Sulforaphane levels.
Introduction. Vitamin D regulates mineral metabolism. Its deficiency has been associated with diabetes, cancer and increased mortality. 25OH vitamin D (25VD) is stable and suitable for the evaluation of vitamin D sufficiency. The aim of the study is to evaluate whether cholecalciferol supplementation for a period of 12 weeks can normalize decreased 25VD levels and reduce increased parathormone (iPTH) in hemodialysis (HD) patients with a vitamin D deficiency. Secondary aims: to evaluate decrease in inflammation, anemia or use of erythropoietin. Design. Randomized, double blind clinical trial in two arms of HD patients with 25OH Vitamin D deficiency and secondary hyperparathyroidism, for a period of 12 weeks. Population. Patients over 18 years of age on HD for more than 3 months and levels of 25VD < 30 ng / ml and iPTH >300 ng/ml , who sign a consent form. Randomization will be achieved by using a table of random numbers at the pharmacy, and neither doctors nor patients will know which group they have been assigned to. Treatment. Supplementation will consist of one 5000 IU cholecalciferol tablet or placebo during dialysis for a period of 12 weeks. Monthly monitoring will include: haemoglobin (g/dl), Calcium (mg/dl), Phosphorous (mg/dl), PTH (ng/ml), epo dose (IU/kg/week), epo resistance (IU/kg/week/g Hb). At the beginning and end of the study the following will be measured: alkaline Phosphatase (IU/ml), PCR (mg/L), 25VD (ng/ml), ferritin (ng/ml) and transferrin saturation, quality of life (SF36). During the study, doses of calcitrol or paricalcitol will not be modified. The study will be discontinued if calcemia ≥ 10.5 mg/dL is detected on two occasions. Size of sample is estimated at 120 patients for a PTH decrease of 20% in 35% of patients in group treated (assuming 15% follow-up losses). Analysis will be done for Intention to treat for the primary outcome. Ethical aspects: Authorization has been obtained from the Ethics Committee of the institution as regards Good Clinical Practices, Helsinki Declaration and national regulations. The trial will be registered at the Ministry of Health.
The purpose of this study is to investigate the mechanism that explain the beneficial clinical effect of vitamin D treatment in women with PCOS.
Vitamin D has been shown to related to clinical outcomes in critically ill patients. The object of this study is to investigate the prevalence of Vitamin D deficiency in critically ill patients with various length of ICU stay .