View clinical trials related to Cardiovascular Diseases.
Filter by:Chronic kidney disease (CKD) and end-stage renal disease are highly prevalent in Taiwan. Cardiovascular disease (CVD) is the most common cause of death in children with CKD. Nitric oxide (NO) deficiency links CKD and CVD. Asymmetric dimethylarginine (ADMA), a NO synthase inhibitor, its level is increased in kidney disease and cardiovascular disease and serves as a methylation biomarker. In addition to ADMA, uremic environment, hyperhomocysteinemia (Hcy) and oxidative stress may affect DNA methylation. S-adenosylmethionine (SAM) is an important human methyl donor. S-adenosylhomocysteine (SAH) is demethylated product. Methylenetetrahydrofolate reductase (MTHFR), a folate metabolism enzyme can regulate methylation pathway. The investigators intend to examine whether ADMA, SAM/SAH ratio, Hcy, and MTHFR gene methylation can serve as biosignature to predict CVD in children with CKD children.
1. Research background - High blood pressure is one of the most important risk factors to cardiovascular diseases (CVDs). Reducing population blood pressure can control CVD incidence and lower mortality effectively. Much research has proven that adjusting for Na and K intake level can reduce blood pressure. According to the China Salt Substitute Study, the systolic blood pressure of intervention group which used salt substitute is 5.4 mmHg lower than that of control group. Life expectancy in Tibet is 67 years old. It is estimated that the use of salt substitute among population in Tibet can reduce total mortality in Tibet by 20%. China Salt Substitute Study in Tibet (CSSS-Tibet), found that salt substitute is effective in lowering both systolic and diastolic blood pressure and offers a simple, low-cost approach for hypertension control among Tibetans in China (unpublished results). However, the study focused on hypertensive patients, the effectiveness of hypertension control by providing free salt substitute to the entire population remains unknown, and a large-scale trial is needed. 2. Objectives - Primary objective is to observe the effect of providing salt substitute on population blood pressure in Tibet. Secondary objective is to observe the effect of such intervention on population mortality, cardiovascular mortality and life expectancy. In addition, the data collected from high-risk population (sub-group) in the study will be used in China Salt Substitute and Stroke Study (SSaSS). Also, serum cholesterol and random blood glucose of people over 60 in Tibet will be collected. 3. Method - The study is a open, cluster-randomized, controlled trial. - 30 villages with 15 to 35 households each and a distance of at least five kilometers in between will be selected from Damxung county and Maizhokunggar county. The two counties have an average altitude of over 4000 meters in Tibet Autonomous Region. - All selected villages will be randomly assigned to intervention group or control group on a 1:1 ratio. - All household in the selected villages will be recruited if they meet the eligibility criteria. Approximately 4,500 participants will be enrolled - Intervention group receives free salt substitute. Control group will continue to buy their own normal salt. Both group will receive the same health education on salt reduction. 4. Outcome - Primary outcome is blood pressure. Secondary outcomes include total mortality, cardiovascular disease mortality, life expectancy, serum cholesterol level of people over 60, and random blood glucose level of people over 60.
The overall approach to the study is to assess the feasibility of recruiting African Americans to participate in several health-promoting programs and to compare health outcomes among the three interventions.
Background: - Heart disease is the leading cause of death in the United States. Eating fruits and vegetables with chemicals called flavonoids may protect against heart disease and improve blood flow to the heart. They are found in blackcurrant berries. Oils found in fish and mussels called omega-3 fats have also been shown to protect the heart. Researchers want to know if blackcurrant extract and omega-3 fats can improve blood flow, which may increase blood to the heart. They also want to learn about the health of blood vessels and how the heart works. Objective: - To learn if blackcurrant extract and omega-3 fats will improve blood flow and make the heart beat stronger. Eligibility: - Healthy adults 55 to 75 years old. Design: - Participants will be screened with medical history, physical exam, and blood tests. - Visit 1 will take 6 7 hours. - Participants will have physical exam and blood and urine tests. - A small device like a microphone will be placed on their arm to take pictures of blood vessels. A blood pressure cuff will be tightened on their arm and more pictures will be taken. - Blood pressure cuffs will be placed on their arms and legs. They will be tightened at the same time and blood pressure will be measured. - Participants will answer questions about their eating and exercise. - Every 8 weeks, participants switch from taking blackcurrant and/or omega-3 tablets to a placebo to no tablets. <TAB> - Every 8 weeks, they will have another shorter clinic visit that will repeat most of visit 1.
This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group study in overweight and obese subjects with cardiovascular (CV) disease and/or multiple CV risk factors.
The purpose of this study is to evaluate the quality and prognostic ability of low dose 99mTc-tetrofosmin Myocardial Perfusion SPECT Imaging.
This research focuses on health needs, constructed meanings of health, and meaningful health promotion tactics among women who are heart disease patients. Women with heart disease are considered as a highly vulnerable group for cardiovascular disease-related deaths in Singapore. Because the culture-centered approach has previously demonstrated that community-driven participatory processes of the Culture-Centered Approach (CCA) foster positive changes in health outcomes, this project highlights involvement of community members in developing effective health promotion regarding heart health. Rather than relying solely on interventions created by outside experts, The investigators aim to engage in Heart Health promotion that is meaningful through the involvement of these community members in processes of change. Thus, the investigators seek to engage these women who are heart disease patients in developing a heart health intervention that is beneficial to them. Through in-depth interviews, focus groups, the formation of advisory boards, and community-wide dialogue workshops led by these women, the investigators seek to identify specific heart health promoting strategies and tactics that are meaningful to the lived experiences of the women. As part of the overall solution, this project will work alongside the Women's Heart Health Clinic to create training materials and disseminate findings based on our analysis. Methodology: As far as the methodology, the investigators are using the Culture-Centered Approach (CCA) as well as using biomedical measures for evaluation. First, an advisory board will be formed to inform each step of our methodology and data analysis. First, the investigators will randomize one group of patients into the control group and one group into the experimental group. The investigators will conduct baseline measures for both groups. For the control group, the investigators will measure biomedical data at 3 times (3 months, 6 months, and 12 months). For the experimental group, the investigators will create advisory board that will consist of approx. 4 physicians and 6 patients. In-depth interviews will be conducted with women who have experienced CVD and who live in Singapore. Each interview will last a maximum of 90 minutes. Interviewees will be asked questions about how they understand health, their health experiences, and the obstacles they face in accessing health care in Singapore. Data from the interviews will be analyzed with the advisory board and will be used to guide discussion for the focus groups of women in the experimental group. Focus group sessions, each lasting a maximum of 90 minutes, will be conducted with the patients in the experimental group. In each session, the participants will collectively develop potential solutions for the issues that emerged during the earlier interviews.During the one-year period of study, a participant in the experimental group can participate in one or many of the one-on-one interviews, focus groups, or other activities planned based on the feedback of the participants. Based on the information given in the interviews, advisory board meetings, and focus groups, an intervention will be designed and carried out for the experimental group. This group will also be evaluated at 3 time points (3 months, 6 months, and 12 months) in addition to baseline.
Pomegranate has gained widespread popularity since the health effects of the whole fruit, as well as its juices and extracts, have been studied in relation to a variety of chronic conditions such as hypertension, diabetes, obesity, cancer and cardiovascular disease. The fruit consists of peel, seeds and berries or arils. The peel is rich in minerals and compounds such as polyphenols, but is not an edible part of the plant. In order to harness the benefits of all parts of the fruit, the whole fruit can be crushed and powdered and then easily consumed as pomegranate extract capsules. Pomegranate has been shown to be effective at reducing cardiovascular disease risk factors, particularly with respect to decreasing blood pressure and increasing insulin sensitivity. Dietary polyphenols may also suppress body fat growth. Recently, positive effects on fat reduction have been shown using pomegranate and its extracts. In animal models it has been shown for both extract and leaf that there were significant decrease in food consumption and body weight, inhibiting the development of obesity. In the few human studies, there appeared to be a trend towards a reduction in waist circumference and fat mass, plus a halt in body weight increase, for both juice and seed oil. This parallel, double blinded, randomised, placebo controlled trial aims to confirm previous results concerning the effect of whole pomegranate fruit on biochemical and physiological markers using a new pomegranate extract and to conduct original work to explore its effect on body weight, measurements and fat mass. Any similar interventions have not been double blinded or used pomegranate in extract form. Changes in physiological and biochemical markers will also be investigated. The study hypothesis is that pomegranate extract will reduce BMI and body weight, fat mass, body measurements and blood pressure.
Objectives: To develop and validate a mobile tool for use in Smartphone supports as a first step, and to evaluate the effect of adding this new tool of information and communication technologies (ICT), to a standardized intervention to increase adherence to nutritional recommendations of the Mediterranean diet and increase physical activity as primary endpoint. Analyze adherence and intervention results from a gender perspective. Methodology: Multicenter, randomized double-blind, clinical trial with two parallel group, aimed at assessing the effects of adding an TIC tool, developed for the Smartphone application (intervention), in support of behavioral and educational recommendations (control) in the increased physical activity and adaptation to the Mediterranean dietary pattern. Population: 1215 included subjects younger than 70 years from the project EVIDENT who agree to participate. Measurement and interventions: Physical activity will be assessed with the accelerometer and the 7-PAR day and adaptation to the Mediterranean diet with a questionnaire of adherence and a food frequency survey. It will also assess vascular structure and function, central blood pressure, Augmentation index, pulse rate and of carotid intima-media thickness. The counsel to adaptation the Mediterranean diet (based on the project PREDIMED) and exercise (based on PEPAF project), will be common to both groups. The intervention group will be added training and use of an application on a Smartphone designed to promote healthy eating and increased physical activity.
Clinical study that aims to evaluate a new strategy using the SYNTAX II Score calculator in the functional assessment of patients with new coronary 3-vessel-disease who undergo percutaneous coronary intervention (PCI)