View clinical trials related to Cardiovascular Diseases.
Filter by:The investigators will randomize abdominally obese men and women at increased health risk to one of the following 4 conditions: 1) No-exercise, wait list controls (C), 2) Low volume, low intensity exercise (LVLI), 3) High volume, low intensity exercise (HVLI), 4) Low volume, high intensity exercise (LVHI). The primary aim of the trial is to determine the effects of varying exercise dose (energy expenditure, kcal) or intensity (relative to VO2max (cardiorespiratory fitness)) on waist circumference and glucose tolerance. The investigators will test the following hypotheses: 1) That the reduction in waist circumference and improvement in glucose tolerance in response to all treatments will be greater than controls. 2) That reduction in waist circumference and improvement in glucose tolerance in HVLI and LVHI will be greater than LVLI. 3) That hypotheses 1 and 2 are true independent of gender.
1. Assessing the perception of Canadian Primary Care Physicians towards global cardiovascular risk assessment. 2. Correlating physician perceptions to actual practice data, gathered via a retrospective chart audit. 3. Evaluating the impact of a prospective educational and peer-practice pattern intervention on future assessment o cardiovascular risk and 4. Assessing the role of carotid atherosclerosis assessment(Carotid IMT and plaque) as an adjunct to global risk prediction.
Project Overview: Poor hypertension control has dire consequences for the African-American population who suffer greater death and disability from heart disease, stroke, and renal failure than whites. To reduce these health disparities it is critical to promote of a healthy lifestyle in regard to diet, exercise, adherence to medications, as well as other behaviors. However, physicians usually fail to address lifestyle behaviors in the context of the harried patient visit. Therefore, the investigators hypothesized that the investigators could reduce cardiovascular risk by providing additional support to persons with poorly controlled hypertension through phone calls from trained peer patients and visits to an office support staff member. Study Design: A single-blind, randomized, controlled trial in 280 African-American primary care patients aged 40-75 with poorly controlled hypertension (HTN). The intervention group receives a practice-based team intervention that combines peer coach with office staff (i.e., medical assistant or licensed practice nurse) visits to address lifestyle challenges. Both intervention and control groups receive informational materials and healthy soul food recipes from the American Heart Association. The 6 month intervention alternates monthly phone calls from peer coaches about lifestyle behavioral changes with office-based visits with the support staff member during which patients review and discuss low literacy slide shows about healthy behaviors as well as examine their personal cardiovascular risk profile.
The objective of this study is to measure the energy value of pistachios in the human diet and study molecular mechanisms that may help explain the beneficial health effects of pistachios.
The objectives of this study are to : 1) determine if vaccenic acid (trans-11-octadecenoic, a naturally occurring trans fatty acid isomer from ruminant animal products) raises LDL cholesterol in a quantitatively comparable manner as mixed trans fatty acid isomers from partially hydrogenated vegetable oils at 3% of energy intake, 2) determine if cis-9, trans-11 conjugated linoleic acid (a naturally occurring polyunsaturated fatty acid from ruminant animal products) raises LDL cholesterol compared to a control diet, and 3) demonstrate that mixed trans fatty acid isomers from partially hydrogenated vegetable oil raises LDL cholesterol compared to a low trans fatty acid diet.
The purpose of this study is to validate the Nonin Near-infrared spectroscopy (NIRS) device to measure regional oxygen saturation in a cohort of children with cardiovascular disease undergoing cardiac catheterization.
The purpose of this study is to evaluate the acute, postprandial effects and mechanism of action of various walnut components (separated nut skins, de-fatted nut meat, nut oil) versus whole walnuts on oxidative stress, inflammation and measures of platelet and endothelial function in healthy adults with moderately elevated cholesterol levels.
Diacylglycerol (DAG) is a molecule that consists of two fatty acid chains bound by ester links to a glycerol molecule, in the form of 1,2 and 1,3 structural isomers. Approximately 10% of the edible oils on today's market are comprised from DAG. DAG oil has a similar taste, appearance, and fatty acid composition as conventional triacylglycerol oil (TAG; consists of 3 fatty acids chains bound to a glycerol molecule), yet recent studies suggest that due to its different chemical structure, DAG oil may induce cardiovascular (CV) benefits. Specifically, human studies in the United States (US) and Japan have shown that long-term consumption of a diet containing DAG oil enhances loss of body weight and body fat compared with TAG oil of similar fatty acid composition. In postprandial studies, serum triglycerides (TG) and remnant like particle cholesterol concentrations, have shown to be lower following ingestion of DAG-enriched oil compared to conventional dietary oil (e.g., soybean, corn), or TAG oil. Therefore, DAG oil appears to be effective for preventing postprandial hyperlipidemia, which is a risk factor for arteriosclerosis. The hypothesis that the investigators propose in this pilot study is that intake of DAG oil, compared to TAG oil will result in a lower LDL-C, and lower LDL-C/HDL-C ratio, as well as a reduction in TG levels. Given the significance of such findings, if confirmed, the investigators will evaluate other important clinical biomarkers for chronic disease (CV Disease, type 2 diabetes, metabolic syndrome), such as insulin sensitivity and inflammation [as determined by C-reactive protein (CRP), interleukin (IL)-1, IL-6 & tumor necrosis factor-alpha (TNF-α)], which also may be beneficially affected by consumption of the palm DAG oil. During the pilot study, the investigators will reserve serum/plasma samples so that these additional assays may be run upon approval of the modification.
The study is designed to assess the effects of a heart-healthy diet that includes lean beef as the primary source of high quality protein on risk factors for cardiovascular disease.
The primary working hypothesis is that consuming processed tomatoes frequently/daily will favorably improve endothelium and platelet function disease-risk biomarker profiles in adult men and women compared to consuming no or relatively low amounts of processed tomatoes.