View clinical trials related to Vitamin A Deficiency.
Filter by:The investigators hypothesize that single oral high dose supplementation with vitamin A will reduce the incidence of moderate-severe chronic graft-versus-host disease (GVHD) compared with placebo.
Aim of the work is to assess the prevalence of vitamin A deficiency in critically ill children with sepsis and the association between vitamin A deficiency and clinical outcomes
Lipedema is a disease characterized by bilateral abnormal fat deposition in the upper and lower extremities. Pain is a common symptom in lipedema.Vitamin D plays an important role in chronic pain. Vitamin B have analgesic role in some neuropathic pain conditions.This study aimedto evaluate the relationship between vitamin D and vitamin B12 levels and neuropathic pain in lipedema.
The primary hypothesis is that introduction of food-to-food fortified products through a rural Hub-and-Spoke incubator system contributes to an improved food environment and availability of micronutrients to these communities. A secondary hypothesis is that the influence of the rural Spokes can serve to enhance rural food environments through creation of secondary rural spokes that disseminate improved food-to-food fortified products. The overall hypothesis is that a product designed with optimized nutritional characteristics, based on consumer preferences and leveraging local nutrient dense ingredients, can successfully deliver nutrition through sustainable market-driven approaches.
The overall hypotheses is that a product designed with optimized nutritional characteristics, based on consumer preferences and leveraging local nutrient dense ingredients, can successfully deliver nutrition through sustainable market-driven approaches. The objectives of this study will be 1) to assess the nutritional adequacy of Kenyan households with children and 2) to determine the market potential of a locally sourced and manufactured, blended fortified, cereal-based product for the improvement of micronutrient deficiencies among children aged 24-60 months. This study will simulate a market study, the investigators conducted a product launch, determined market potential based on sales, evaluated marketing strategy to increase market share, and modeled the nutritional contribution of FtFF/traditionally fortified product for iron, zinc, and vitamin A. The investigators expect to provide a throughout evaluation of a business-driven strategy (for profit, social enterprise) as a sustainable tool to decrease micronutrient deficiencies.
The overall hypotheses is that a product designed with optimized nutritional characteristics, based on consumer preferences and leveraging local nutrient dense ingredients, can successfully deliver nutrition through sustainable market-driven approaches. The objectives of this study were 1) to assess the nutritional adequacy of urban Senegalese households with children and 2) to determine the market potential of a locally sourced and manufactured, blended fortified, cereal-based product for the improvement of micronutrient deficiencies among children aged 24-60 months. This study simulates a market study, the investigators will conduct a product launch, determine market potential based on sales, evaluate marketing strategy to increase market share, and model the nutritional contribution of FtFF/traditionally fortified product for iron, zinc, and vitamin A. The investigators expect to provide a thorough evaluation of a business-driven strategy (for profit, social enterprise) as a sustainable tool to decrease micronutrient deficiencies.
Veganism and vegetarianism have clear benefits where they have a lower risk of many health issues. However, they also have a higher risk of nutrients and vitamin deficiency such as iron and vitamin B12. Iron can be found in plant-based food but in varying quantities, whereas vitamin B12 is mainly found in red meat, thus vegans and vegetarians can only take this vitamin in supplements such as tablets. In this study, the investigators are testing two interventions, the consumption of recipes with a certain iron amount to increase iron levels, and the consumption of vitamin B12 biofortified plants to increase serum B12 levels in vegan and vegetarian participants.
Nitrous oxide has become an increasingly popular recreational drug amongst young people, particularly at festivals, nightclubs and parties. Considering the drug is not illegal to possess, has low cost in the form of 'whippets' and can be easily purchased online, it has become the second most commonly used recreational drug amongst people aged 16-24 in the UK. However, nitrous oxide is known to irreversibly inactivate the functioning of vitamin B12, a vitamin required for the maintenance and proper functioning of nerves in the spinal cord. Neurological symptoms in this population have been reported in around 3.4% of nitrous oxide users, although the true incidence is expected to be higher as the cases being reported by UK hospitals continues to rise. Patients may present with adverse neurological symptoms like tingling, weakness, coordination and mobility problems. Currently, studies reviewing the functional recovery of these patients have been limited by a retrospective study design, short follow up duration and being limited to small cohort sizes. This is in part linked to patient non-compliance and non-attendance at follow-up appointments. The investigators will therefore prospectively recruit all patients presenting with these symptoms and continue to collect data relating to their neurological recovery for 12 months. Data collection will be remote to ensure it is of low burden to the participants. This will allow the investigating team and others to fully appraise the severity of these toxic neuropathies and understand how best to manage their follow up.
This study aims to examine the effects of Sourse's Hype Bites at being able to increase vitamin B12 levels to promote positive health outcomes. Participants will consume Hype Bites daily. Participants will also take surveys and blood samples to examine both the subjective experience of taking Hype Bites as well as changes in biomarkers across the trial.
This study will determine systemic vitamin A status and lesion histopathology of participants with vocal fold hyperkeratosis resulting in clinical leukoplakia.