1,317 Clinical Trials for Various Conditions
The purpose of this study is to investigate the energy needs and nutritional status of adolescent girls in Abia State, Nigeria
Africa faces rapid urbanization, has the second highest population growth rate, makes up one-fifth of the world's youth population, and experiences stagnant rates of undernutrition. These challenges point to the need for country-specific data on rural-urban health disparities to inform development policies. This cross-sectional study examined disparities in body mass index-for-age-and-sex (BAZ) and height-for-age-and-sex z-scores (HAZ) among 1125 adolescents in Tanzania. Rural-urban disparities in nutritional status were significant and gendered. Findings confirm place of residence as a key determinant of BAZ, HAZ, and stunting among adolescents in Tanzania. Targeted gender-sensitive interventions among adolescents, particularly in rural areas, are needed to limit growth faltering and improve health outcomes.
The purpose of this two-arm investigation is to determine if growth patterns of very low birth weight infants (VLBW) (birth weight 750-1500 grams) fed human milk (maternal or donor) supplemented with a human milk-based fortifier grow according to established guidelines and maintain adequate micronutrient levels.
People who eat diets low in choline should deplete their choline (Cho) stores, and measurements of Cho pool size using isotope dilution should reflect this depletion. Investigators will identify a biomarker panel that correlates well with measured Cho pool size across the range of different degrees of depletion.The investigators propose that, as body stores of Cho diminish, cells and organs will reach the point when metabolism/function in the cell is altered, and that this will result in a progression of changes in biomarkers that reflect Cho status.
People who eat diets low in choline (LC) should deplete their choline (Cho) stores, and measurements of Cho pool size using isotope dilution should reflect this depletion. Investigators will identify a biomarker panel that correlates well with measured Cho pool size across the range of different degrees of depletion.The investigators propose that, as body stores of Cho diminish, cells and organs will reach the point when metabolism/function in the cell is altered, and that this will result in a progression of changes in biomarkers that reflect Cho status.
Avocados are an excellent source of fiber, potassium, magnesium, and poly- and mono-unsaturated fats. They can be a nutrient dense component of healthful dietary patterns and have the potential to improve the cardiovascular disease (CVD) risk profiles of families in the United States (US). The proposed research plan will focus on the contribution of avocado intake to the reduction in CVD risk of US families, by examining the effects of avocado intake on the overall nutritional status of families. Of particular interest is establishing these effects in ethnic populations such as Hispanics/Latinos. On average, Hispanic/Latinos are at increased risk for metabolic diseases that predispose to CVD. This 6-month cluster randomized trial in Hispanic/Latino Americans aims to accurately determine the impact of avocados on the overall dietary pattern of their families. Future research will extend the results of the current trial to a larger sample of ethnically diverse families in order to evaluate whether sustained changes occur in nutritional, cardiovascular and metabolic health status.
Carbon-12 and carbon-13 are naturally-occurring isotopes that are found in exhaled breath. Investigators have proved that the 13CO2/12CO2 breath delta value (BDV) changes in subjects who were in negative energy balance then fed a positive energy balance meal. Measuring one liter of exhaled breath daily may be a more convenient way to measure negative or positive energy balance in patients receiving intravenous nutrition.
Individuals with IBD are at risk for nutrient deficiencies. This prospective, non-randomized, open-label study will assess the effect of a nutrition support product on nutritional status in adults with IBD. Up to ten adults with ulcerative colitis or Crohn's disease will be enrolled in the study and asked to take the product for 12 weeks. The primary measures of the study are several blood markers of nutritional status.
Children who receive hematopoietic cell transplants (HCT) are at high nutritional risk due to comorbidities and complications that are likely to develop before, during and after transplant. Prior to transplant, many children undergo multiple rounds of chemotherapy which affect appetite and cause gastrointestinal toxicities that limit food intake. During transplant, painful mucositis makes it difficult to consume adequate nutrients and often children will require nutrition support such as parenteral or enteral nutrition. Energy imbalance and physical deconditioning following transplant can result in loss of lean body mass and functional impairment; these nutritional side effects are exacerbated if the child develops graft-versus-host disease. After transplant, a substantial number of childhood cancer survivors become overweight and develop metabolic syndrome. However, little is known about the prevalence and distribution of pediatric malnutrition (under-nutrition as well as obesity), the psychosocial factors that affect dietary intake and how the quality of the child's food intake and physical activity level throughout the transplant process might affect body composition and clinical outcomes. In this exploratory study, we will monitor nutritional status in pediatric patients undergoing HCT. This study will test the feasibility of collecting patient-reported dietary intake data along with anthropometric, body composition, functional status and psychosocial measurements that may influence dietary intake in pediatric patients undergoing HCT. The data collected in this preliminary analysis will inform future interventional studies.
This clinical trial studies the use of early oral supplementation in improving nutritional status in participants undergoing hematopoietic stem cell transplant. Impaired nutritional status in participants undergoing hematopoietic stem cell transplant has been linked to decreased outcomes such as increased length of hospital stay and increased time to engraftment (an important milestone in transplant recovery). Early oral supplementation may increase nutritional status and help to promote a positive outcome in participants undergoing transplant.
To evaluate the safety and effectiveness of oral nutritional therapy Serum-Derived Bovine Immunoglobulin (SBI) on nutritional status, epithelial barrier function, and mucosal expression of pivotal genes including tight junction, secretory mechanisms, tissue repair proteins and chemokines in subjects with IBS-D.
This study will evaluate the use of a medical food, oral serum-derived bovine immunoglobulin/protein isolate (SBI), in helping patients with advanced COPD with cachexia (a wasting syndrome) improve their nutritional status and gain weight. The medical food is in powder form and is mixed with a liquid such as water or orange juice and consumed by swallowing. The primary hypothesis is that SBI protein isolate (SBI) will improve the nutritional status of cachexic patients with advanced stages of COPD.
The purpose of the study is to evaluate the effectiveness of the oral nutritional therapy serum-derived bovine immunoglobulin protein isolate (SBI) 2.5 g twice a day (BID) and SBI 5.0 g versus placebo on supporting nutrient absorption in HIV+ subjects with HIV-associated enteropathy.
The objective of the proposed research is to determine if tyrosine, an amino acid found in protein-containing foods, will mitigate the cognitive deficits and adverse effects on behavior and mood produced by exposure to military stress. This study will be conducted at the Army Survive, Evade, Resist, Escape (SERE) school at Fort Bragg, NC. Tyrosine is the dietary precursor of the catecholamine norepinephrine, a key brain neurotransmitter that is critical for the central nervous system (CNS) response to various types of acute stress. Psychological stress increases catecholamine turnover in the brain, increasing the requirement for tyrosine to support synthesis of norepinephrine. Animal and human studies have shown that tyrosine supplementation can produce beneficial effects on cognitive and physiological functions during exposure to a variety of acute stressors. This project will determine if volunteers treated with supplemental tyrosine during stressful phases of SERE training experience less degradation in cognitive performance and mood than volunteers treated with placebo. Tyrosine or placebo will be administered in a specially developed food bar provided to volunteers. The bar is part of a prototype of ration-component designed for use during assault operations. A between-subjects, double blind experimental design will be employed. Tyrosine, an amino acid found in most protein-containing foods, has been tested in hundreds of volunteers without adverse effects. Approximately 100 volunteers will be recruited from several SERE classes to ensure up to 82 volunteers complete the study. They will be tested during several portions of SERE. A comprehensive but brief battery of cognitive tests, as well as saliva and blood samples, will be collected in a manner that does not interfere with ongoing training. Hypotheses: 1. The adverse effects of psychological stress on cognitive performance and mood during SERE school will be reduced when volunteers are given supplemental tyrosine compared to placebo treatment. 2. Supplemental tyrosine will reduce release of proinflammatory cytokines that may be increased by the stressful activities of SERE school.
The investigators propose to obtain facial photographs for use in testing a computer algorithm that recognizes males at high risk for Hypohidrotic Ectodermal Dysplasia (XLHED). FDNA (www.fdna.com), a software company with expertise in the area of facial recognition, is collaborating with the Sponsor in algorithm development based on 2D photographs not requiring special photographic technologies. A frontal facial photograph will be taken at the time of study conduct. The anonymized photographs will be transmitted to FDNA for analysis. A limited number of unaffected controls will be also be recruited. A subset of affected males between ages 5 and 25 years will have the option of having a blood draw for a set of laboratory studies assessing nutritional status.
To determine if preop nutritional status is an indicator for outcomes of bilateral staged total knee arthroplasty. The investigators expect that patients having staged bilateral total knee arthroplasty with the second procedure performed within one week of the first and have a total lymphocyte count \>1500 per cubic millimeter and serum albumin level \>35 grams per liter will have the same or less complications and shorter length of stay than those with lower lymphocyte count and albumin level.
Cystic fibrosis (CF) is a life-shortening disease that causes breathing and digestive problems, but can now be diagnosed at the time of birth. Lung function is very hard to measure in infants, but growth is not. In this study the investigators aim to define growth in infants with CF in the first year of life with research quality precision and to understand factors that interfere with good growth. Pancreatic enzyme replacement therapy (PERT) will be also be studied in a subgroup of infants. Two different doses of PERT will be evaluated for improving fat and nitrogen absorption in infants with CF.
The investigators propose to assess 36 donors' nutritional status using accepted parameters (prealbumin, resting energy expenditure); to assess nutrient intestinal absorption through 13Curacil breath tests; and to evaluate serum concentrations of IL-6 and TNFalpha to determine if continuing or initiating enteral feeding and nutritional supplementation is effective in restoring or maintaining nutritional parameters.
The goal of this study is to find out if the daily consumption of English walnuts (Juglans regia L.) for 6 wk, at a dose readily incorporated into the diet (0.75 or 1.50 oz), will have a positive effect on antioxidant capacity and nutrient status in a population of healthy adults, aged 50-70 y.
We propose to identify malnourished chronic kidney dialysis patients through a statewide effort and subsequently treat them based on a protocol (provision of oral nutritional supplementation) over a period of six (6) months.
This study examines the effects of an infant formula containing increased calories, as compared to commercial formulas, when given during the first 6 months of life. It will examine effects on growth, disease progress, immune system, and quality of life of infected infants. HIV disease in infants often leads to nutritional deficiencies. Providing increased nutrition early in their lives may help the quality of life of children who contract HIV from their mothers.
This study is a multi-functional integrated research and education project to prevent losses in academic achievement, cognitive function, and behavioral health among at-risk youth. The study tests the effects of a 8-week nutrition and physical activity-based program (Integrated Childhood Activity and Nutrition \[ICAN\]) to prevent summer learning loss. Outcomes include standardized academic achievement as well as executive function among 6-10-year-olds affected by poverty. The nutrition component of the intervention involves daily consumption of a snack containing the carotenoid lutein, typically found in high quantities in green leafy vegetables. The physical activity components will involve group games or activities.
Early nutrition critically influences growth, neurodevelopment and morbidity among infants born of very low birth weight (VLBW), but current one-size-fits-all feeding regimes do not optimally support these vulnerable infants. There is increasing interest in "precision nutrition" approaches, but it is unclear which Human Milk (HM) components require personalized adjustment of doses. Previous efforts have focused on macronutrients, but HM also contains essential micronutrients as well as non-nutrient bioactive components that shape the gut microbiome. Further, it is unclear if or how parental factors (e.g. body mass index, diet) and infant factors (e.g. genetics, gut microbiota, sex, acuity) influence relationships between early nutrition and growth, neurodevelopment and morbidity. Understanding these complex relationships is paramount to developing effective personalized HM feeding strategies for VLBW infants. This is the overarching goal of the proposed Optimizing Nutrition and Milk (Opti-NuM) Project. The Opti-NuM Project brings together two established research platforms with complementary expertise and resources: 1) the MaxiMoM Program\* with its clinically embedded translational neonatal feeding trial network in Toronto (Dr. Deborah O'Connor, Dr. Sharon Unger) and 2) the International Milk Composition (IMiC) Consortium, a world-renowned multidisciplinary network of HM researchers and data scientists collaborating to understand how the myriad of HM components contribute "as a whole" to infant growth and development, using systems biology and machine learning approaches. Members of the IMiC Corsortium that will work with on this study are located at the University of Manitoba (Dr. Meghan Azad), University of California (Dr. Lars Bode) and Stanford (Dr. Nima Aghaeepour).
This clinical trial studies whether the use of a grocery delivery service (Instacart) and nutrition navigation improves food insecurity in cancer survivors. The American Cancer Society recommends a normal body mass index, regular physical activity, and a healthy diet for cancer patients. Following these guidelines may help prevent deaths among cancer patients, but few cancer patients follow them. One reason for not following the guidelines could be due to the lack of consistent access to sufficient quantities of affordable, nutritious food for an active, healthy life (food insecurity). Instacart provides users access to foods that fall under the nutrition plan for cancer survivors that can be purchased and delivered to the user's home from many different grocery stores. Nutrition navigation provides support to cancer survivors via weekly check ins to help with following nutrition guidelines and assist with ordering groceries on the Instacart platform. Using a grocery delivery service, such as Instacart, and nutrition navigation may help improve food insecurity in cancer survivors.
The goal of this observational study is to compare the effects of air pollution exposure and nutrition between neighborhoods with high and low social vulnerability scores. The main questions this study aims to answer are: * Does living in a neighborhood with high or low vulnerability influence the response of the heart, lungs, and immune system to air pollution. * Does nutritional status alter the association between air pollution exposure and changes in the heart, lungs, and immune system. Participants (age 25-70 years) that live in neighborhoods ranked high or low on the Social Vulnerability Index (SVI) will take part in 3 visits. Each visit involves the following: * Measurements of heart activity, lung function, and blood to measure changes that may be caused by air pollution. * Questionnaires about the types of food eaten and activities that may modify exposure to air pollution. * Estimation of air pollution exposure using a study iPhone. Participants will carry a study iPhone with them for 24 hours at each visit. The study iPhone runs an application (app) that estimates the amount of air pollution each participant is exposed to. * Wearing silicone wristbands for a week before each study visit. Silicone wristbands absorb air pollutants and are later measured see the types and amounts of chemicals participants are exposed to.
This is a proof of concept clinical trial to compare daily intake of at least 20 grams of whole dairy fat vs habitual diet on hepatic steatosis in children with NAFLD.
Due to the lack of direct evidence of optimal iodine intake of Chinese children, pregnant and lactating women and infants were found during the recent revision of Chinese dietary reference intakes (DRIs) of iodine in 2013 by the applicant Pro. Zhang, and no systematical research about compensatory mechanism of iodine nutrition in lactating women was found yet. Previous study funded by United Nations International Children's Emergency Fund (UNICEF) cooperated with the international experts on iodine and key project of national natural science foundation of China under the guidance of Pro. Zhang, had obtained the safe intake range of iodine from children and pregnant women, more than 10 joint papers were published, which laid the foundation of population study and international cooperation.
The goal of VA's RR\&D office is to maximize functional recovery. This proposal will allow the investigators to test an intervention that combines the fundamentals of Physical Medicine and Rehabilitation with state-of-the-art nutritional support and innovations in care such as telehealth and the use of activity trackers to optimize patients before high-risk surgery. This intervention has the potential to not only reduce complications and hospital readmissions, but also to maximize functional recovery and quality of life for thousands of Veterans undergoing high-risk surgery every year. Furthermore, the proposal is the first step in the design and implementation of prehabilitative services for Veterans living in rural areas and those with inadequate support or transportation.
The purpose of this study is to determine whether a 30 day beef intervention can improve peak cognitive performance in young, normally menstruating adult women. The control group will consume a daily portion of macronutrient equivalent vegetable source of protein.
Dietary intake is a major driving force behind the escalating obesity and type 2 diabetes epidemics. Large, high-quality clinical trials have shown that close adherence to healthy dietary recommendations significantly reduce the incidence of obesity and type 2 diabetes, especially among people at increased risk. However, large inter-individual variability exists in response to dietary interventions. To inform more effective obesity and type 2 diabetes prevention strategies, it is crucial to better understand the biological, environmental, and social factors that influence how people interact and respond to specific foods. In a recent large-scale genome-wide association study, our research team has identified 96 genomic regions associated with overall variation in dietary intake. This study provided evidence that inherited molecular differences are likely to impact on food intake (i.e., preference for certain foods) and metabolic homeostasis (i.e., glucose regulation). Connecting knowledge about human genetic variants with information from circulating metabolites can be particularly useful in understanding the mechanisms by which some people experience a detrimental response to specific foods. The specific objective of the PREMIER study is to carry out an interventional dietary study to measure the response of blood glucose and other biomarkers to a standardized meal, and evaluate the extent to which food choices differ among individuals with distinct genetic susceptibility.