View clinical trials related to Zinc Deficiency.
Filter by:The overall objective is to determine the impact of EED on zinc absorption and homeostasis, and its impact on the absorptive capacity of vitamin A absorption of young children (18-24 months of age) in an austere setting with high rates of diarrhea, stunting, and micro-nutrient deficiencies.
The overall objective is to determine the impact of EED on total daily zinc absorption of young Bangladeshi children (18-24 months of age) in an austere setting with high rates of diarrhea, stunting, and micro-nutrient deficiencies..
The objective of this study is to evaluate efficacy and safety of NPC-02 in patients with Zinc Deficiency.
The objective of this study is to check the dose control method of NPC-02 and the holding effect for the target serum zinc concentration in patients with zinc deficiency.
Many Indonesian infants are already iron deficient before they reach the age of six months, which also determines the high prevalence of anemia among under-five children. Iron deficiency ultimately leads to anemia, and there is clear evidence that iron deficiency anemia during early childhood has a marked negative effect on child development and cognitive function (Lozoff et al.1991; Idjradinata & Pollitt, 1993). This negative impact on childhood development is one of the main reasons why iron deficiency during infancy should be prevented or treated. Since diets low in iron is usually also low in zinc, zinc deficiency --which has negative consequence on growth-- is common in iron deficiency area. In Southeast Asia, the condition is exacerbated by the rich phytate content in the complementary foods which inhibits the absorption of iron as well as zinc (Gibson, 1994). Thus, combining both iron and zinc, hence, is expected to decrease both iron and zinc deficiencies and hence improve growth and development of the children. Recently, there has been an emerging view which looks at the two-way relationship between nutrition, health, and psychosocial well-being. This concept is supported by studies on "positive deviance", a term used to refer to children who grow and develop well in impoverished environments where most children are victims of malnutrition and chronic illness (Zeitlin et al., 1990). The mechanism which helps to explain how psychosocial factors, such as the affect between mother and child, are associated with adequate growth and development: 'Psychological stress has a negative effect on the use of nutrients whereas psychological well-being stimulates the secretion of growth-promoting hormones. Pleasantly stimulating interactions can enhance the child's tendency to exercise its developing organ systems and hence to utilize nutrients for growth and development'. Understanding how the psychosocial environment can promote or inhibit the benefit of supplementation intervention is necessary in order to have a better way of setting about providing supplements. In fact, many supplementation programs do not incorporate complementary program elements that would help to improve the health and psychosocial development of children at the same time that they improve nutritional status' (Myers, 1995). Looking from this perspective, not only will supplementation benefit the psychosocial development but also the psychosocial environment can promote the benefit of the supplementation on the nutritional status and developmental outcomes of infants. The purpose of the study is to investigate whether multi-micronutrient supplementations (zinc+iron, zinc+iron+vit.A) have positive effect on infants' growth and developmental outcomes, and whether the effect is modified by psychosocial care.
The main objective of this clinical is to get information on pharmacokinetics of zinc-enriched yeast.The bioavailability of the yeast enriched with zinc will be compared to two selected zinc salts used in food supplements that are zinc oxide and zinc gluconate.
The objective of this research is to test the efficacy of Zn biofortified wheat in increasing Zn status in Indian school children aged 6-12 y via a 6 month randomized controlled trial.
In this study, iron- and zinc-biofortified pearl millet will be fed to young children in Mumbai, Maharashtra, India over a period of nine months to measure growth and immune function in comparison to children receiving non-biofortified pearl millet.
Introduction: The prevalence of low serum zinc in children under 5 in East Seme, Kisumu is 73.5% and this is likely due at least in part to low bioavailable zinc from the local cereal-based diet. Interventions that will increase zinc intake could prove useful in the effort to control zinc deficiency. A potential strategy is to increase zinc intake through enriched or fortified water. The Life Straw Family filter (LSF, Verstergaard Frandsen S.A, Switzerland) is capable of purifying water and at the same time enriching it with zinc at a variable concentration with mean delivery of approximately 1-4mg/L. Aims of the study: The primary aim of this study will be to quantify in under 5 year old children the contribution of the household LSF device to zinc intake and dietary zinc bioavailability in participating households. Secondary objectives are; 1) to assess change in serum zinc levels, growth, morbidity in the intervention group compared to control; 2) to characterize composition of the intestinal flora of children in the intervention group compared to control. Study Design and Methods: Consenting households from East Seme, Kisumu, Kenya will be randomly allocated to 2 treatment arms in an effectiveness study (90 under-five's per treatment arm). Group one will receive the LSF device with the zinc delivery system; group 2 will receive a LSF without the zinc delivery system. Zinc intake will be assessed in a subsample of the under 5 year old children enrolled in the effectiveness trial (n=100). This will be estimated by 24 hr recalls administered on 2 non-consecutive days in the dry and wet season. Selected food samples will be collected for direct analysis of zinc and phytic acid content, to supplement data from food composition tables (FCT's). The dietary assessment data will be used to estimate the distribution of zinc intakes in this age group and the EAR cut-off method will be used to estimate the proportion at risk of inadequate intakes. Data on water intake from the LSF device will be obtained by personal diaries and tally counters. The Zn concentration of the filtered water will be measured weekly. Using these data and the data from the dietary assessment, the contribution of the LSF zinc delivery to the overall dietary zinc intake will be estimated. The effectiveness study will be conducted as a 6-month double blind randomised trial with 3 assessment time points (baseline, midpoint and endpoint). Three ml (3ml) whole blood will be collected from under 5 year old children enrolled in the households for determination of serum zinc (SZn), C-reactive protein (CRP), Alpha-1- acid glycoprotein (AGP) and hemoglobin (Hb). Stool samples will be collected from a subsample at baseline, midpoint and endpoint in the intervention and control group to assess the composition of the gut microflora and gut inflammation. Anthropometrics (weight and height) will be measured at baseline, midpoint and endpoint of the study. Weekly active surveillance for incidence and severity of malaria, diarrhea and other infectious diseases will be done by questionnaire.
Children with chronic kidney disease, even after transplantation, may be at risk for bone problems due to an imbalance of calcium and phosphorus in the blood, especially as their kidneys progressively fail to function. While some drug and diet treatments are available to prevent such bone disease, many children refuse to take them due to bad taste and tummy cramps. If calcium and phosphorus status remain abnormal for a long time, hard crystals can form in the blood vessels, eventually clogging them and resulting in heart problems. Investigators are studying possible new methods to help the kidneys maintain a normal balance of nutrients in the blood which is important for growing healthy bones and the prevention of side effects in blood vessels that can lead to heart disease. One method is to improve the team work of a hormone FGF-23 and a protein called Klotho that together stimulate the kidneys to increase phosphate removal. Investigators propose that this problem may be due to low blood zinc levels which often occur in children with kidney disease. Thus, in this study, investigators propose to first measure zinc in blood from children with chronic kidney disease (CKD) or who have had kidney transplants to assess zinc and phosphate status, the hormone FGF-23 and its assistant Klotho. If zinc status is low, the children will receive zinc supplementation for 3 months. After treatment with zinc, the same blood measurements will be repeated to determine if the zinc supplements have helped the hormones to remove phosphate from the body. If this pilot project is successful, investigators will then consider a larger scale project involving adult patients as well as pediatric patients from other pediatric centers. This project will also guide investigators as to whether they need to introduce zinc measurements as part of routine testing of CKD and transplant patients. In addition to measuring zinc levels in study participants, trace elements (TE) will also be measured. These include heavy metals such as cadmium, chromium, nickel, vanadium, copper, lead, manganese and selenium. Very little is known about levels and metabolism of TE in CKD especially before dialysis. In adults, cadmium, chromium, nickel, and vanadium probably accumulate in hemodialysis patients, while copper and lead may accumulate. Manganese, selenium are probably deficient. The study will allow investigators to obtain the information about TE in this group of pediatric patients.