20 Clinical Trials for Various Conditions
SGLT2 inhibitors have demonstrated to mitigate cardiorenal risk in people with type 2 diabetes and are likely to play an increasingly large role in the treatment of patients with diabetes, chronic kidney disease and hypertension. Yet the underlying mechanisms of its protective effects are incompletely understood and the salutary effect may be altered by dietary factors such as sodium intake. Therefore, carefully designed mechanistic trials are needed to better understand the interplay between ertugliflozin and salt intake and to potentially modify salt intake to maximize treatment response. In addition, the study could contribute to hypotheses concerning the effects of SGLT2 inhibitors in combination with other drugs that affect sodium homeostasis and could help to explain the differences in kidney outcomes observed in (outcome) trials, which include different ethnicities with potential differences in dietary habits.
The purpose of this study is to explore the influence of sodium intake on arterial stiffness in African American/Black adults.
This research is being done to learn if a smartphone app with and without a just in time adaptive intervention (JITAI) can help patients with hypertension manage their sodium intake and improve their blood pressure.
This is a pilot study to determine the feasibility of the study design and examine the main outcome whether low dietary sodium intake is superior to high dietary sodium intake in controlling blood pressure to be within the normotensive range in living kidney donors.
Experimental data have shown that timing of sodium intake impacts diurnal patterns of sodium excretion. The purpose of this study is to test the hypothesis that the time of day for salt intake impacts (1) blood pressure rhythms and urinary sodium excretion and (2) circadian timing of factors responsible for blood pressure regulation and cardiometabolic health in obese individuals. These studies will address two aims. The first aim will test the hypothesis that limiting high salt intake prior to sleep increases day-night differences in blood pressure, improves timing of urinary sodium excretion, and improves metabolic risk factors. The second aim will test the hypothesis that limiting high salt intake prior to sleep preferentially improves rhythmicity in peripheral vs. central circadian clock factors linked to renal sodium handling. The proposed hypothesis-driven studies will determine how timing of sodium intake affects diurnal blood pressure and circadian timing of factors responsible for blood pressure control and metabolic health, with the ultimate goal of identifying novel strategies to treat nocturnal hypertension and metabolic disease in obesity.
This is a randomized clinical trial in which maintenance hemodialysis patients will be provided with salt restricted 'dialysis friendly' meals and compared to a control arm receiving usual care.
The aim of this study is to determine if alterations in sodium intake alter peripheral vascular function and exercise tolerance in young individuals.
The proposed study will determine the effectiveness of a mobile application location-based tailored notification message system in helping hypertensive patients reduce dietary sodium intake and feel more confident in following a low sodium diet.
Currently, the recommendations for sodium intake restriction for patients with heart failure are mostly based on expert consensus and observational evidence, whereas smaller randomized studies have actually suggested that strict dietary sodium reduction may be harmful in heart failure. In the present clinical trial pilot study, the investigators plan to collect data on enrollment rates, compliance, outcomes, and safety of a 12-week dietary intervention in heart failure patients, with prepared food containing two different levels of sodium (1,500 mg and 3,000 mg) daily, followed by a 12-week surveillance for safety and effectiveness. The goal is to inform the design of a fullscale clinical trial that will provide more definitive evidence for dietary sodium recommendations in heart failure.
The overall objective of this study is to assist the general public in achieving and maintaining the currently recommended sodium intake of 1500 mg/day through a reduced sodium intervention that emphasizes spices and herbs. The investigators hypothesize that after four weeks of eating a controlled diet, individuals will acclimate and adhere to a reduced sodium intake of 1500 mg/day and their taste preferences will change. The investigators also hypothesize that individuals in a low sodium behavioral intervention will maintain greater adherence to a dietary sodium intake of ≤ 1500 mg/day than individuals in a self-directed control group.
Optimal calcium retention is important for building bone mass within the genetic potential, a key to reducing risk of osteoporosis later in life. Calcium retention is high during the rapid growth period. The investigators know that urinary calcium is affected by sodium intake but the investigators do not know the effects of sodium intake during the growth spurt or the differences in calcium retention between blacks and whites. Our hypothesis was that a high dietary sodium increases the calcium intakes required for optimal calcium retention in both black and white adolescent girls. The investigators tested calcium retention while girls consumed a low and high sodium diet during three week periods. The subjects were housed in a Purdue fraternity house during the summer and they were supervised at all times by trained staff. During the summer of 1999, subjects consumed diets with 2 levels of dietary Na+ with a fixed diet low in calcium. On the next summer, they switched to a high calcium diet. Subjects collected fecal and urine daily for 20 days. Other measurements included daily body weight, blood pressure every other day, blood sample at the end of each session. Baseline measures included bone mass, self-assessment of pubertal development, a physical examination and diet history.
The investigators will test the hypothesis that markers of vascular endothelial dysfunction will be exaggerated acutely with an extreme high sodium diet compared to an extreme low-sodium diet. The investigators will compare patients with postural orthostatic tachycardia (POTS) to healthy control subjects.
This study will examine the effects of low sodium meal plan on seated blood pressure in older adults from a community-based, congregate senior living facility.
We plan to assess the accuracy of a new means of estimating urine sodium excretion. We will compare the chloride to creatinine ratio obtained by titrator sticks with urine sodium measured by a standard laboratory. If found to approximate sodium excretion, the titrator sticks could provide a convenient means for doctors and patients to monitor their salt intake.
The purpose of the proposed study is to identify the mechanisms responsible for the weight gain associated with Depakote treatment, and to identify methods to prevent and treat weight gain in people taking Depakote. Both sides of the energy balance equation will be measured in a sample of healthy lean and overweight adults. Energy intake will be measured in the Pennington Center's Eating Laboratory, and total daily energy expenditure (TEE) and posture allocation will be measured with the IDEEA™. Questionnaires that assess food cravings and eating attitudes and behaviors will be used to determine if a behavioral phenotype is associated with weight gain in response to Depakote treatment. It is hypothesized that Depakote treatment will result in increased food intake. It is also hypothesized that the time spent engaging in sedentary behavior will increase in response to Depakote treatment. Time spent engaging in, and the energy expended during, physical activity is expected to decrease significantly. Therefore, it is hypothesized that TEE is expected to decrease significantly. The results will be used to identify specific behavioral targets to prevent weight gain during treatment with Depakote. Potential targets include interventions to modify food intake and physical activity. The degree to which each behavior (food intake or physical activity) will be targeted is dependent on the results of this study. For instance, if the majority of the weight gain associated with Depakote treatment is due to changes in food intake, stronger dietary interventions will be suggested. Additionally, changes in endocrine factors (hormones and peptides) will be evaluated during the study to determine if Depakote is associated with an altered endocrine response that affects satiety, food intake, or energy expenditure. If an altered endocrine response is found, these results will be used to identify adjunctive medications or compounds to correct the endocrine response and reduce weight gain. Genomic studies will also be possible, since gene sequencing and gene expression can be analyzed from archived buffy coat samples.
Food Intake Study: This will be a 4-week randomized controlled intervention study with a vegetable intake questionnaire, daily food intake, and seasoning usage measurement to test the acceptability of different seasoning ingredients and vegetable intake in healthy adults. Participants will be randomly assigned to one of three groups (a) vegetables prepared with 50% NaCl and 50% MSG (50/50MSG Mix); (b) vegetables prepared with 70% NaCl and 30% MSG (70/30 MSG Mix); (c) vegetables prepared with NaCl (table salt). Sensory Evaluation Study: A sensory evaluation utilizing all seasoning methods from the intervention will be conducted at a Texas Tech University culinary education lab. In a Texas Tech University culinary education lab, 2-4 vegetables will be cooked and seasoned with either 50/50MSG Mix, 70/30 MSG Mix, or NaCl for taste testing. Then, using a standardized form, participants will rate their acceptability and preference of each vegetable, including sensory characteristics such as appearance, color, odor, texture, and flavor.
Gut microbiota has a role in cardiovascular disease and recent findings in rodents show dietary salt can negatively alter gut microbiota composition. High salt intake is a risk factor for cardiovascular disease. Americans consume dietary salt in excess of Dietary Guidelines and American Heart Association recommendations. The objective of this project is to investigate the influence of high dietary salt consumption on the gut microbiota composition in men and women.
The purpose of this work is to investigate the influence of dietary salt intake on immune function in multiple sclerosis (MS) subjects and healthy controls. This study primarily tests the hypothesis that higher dietary salt intake will be associated with a higher frequency of pathogenic Th17 cells and impaired function of protective regulatory T cells. If a relationship between dietary salt intake and immune function is observed, this study will also test: a) whether this relationship is unique to MS subjects or whether it is also present in healthy controls, and b) whether healthier immune function can be restored by restricting dietary salt intake.
The purpose of this study is to look at the effects of high- and low-salt diets on blood vessel function in healthy subjects.
The overall goal of this study is to evaluate the association between sodium and TH17 cells in human subjects. The subjects will have levels of TH-17 and various hormones measured on low salt diet, low salt diet with intravenous normal saline, and high salt diet.