View clinical trials related to Atherosclerosis.
Filter by:This study is to find out the significance of gut-microbiota in acute stroke patients, including their neurological, radiological outcomes as well as their stroke mechanisms.
The purpose of this research study is to see the effect of taking Aged Garlic Extract (AGE) on the progression of coronary plaque, a condition called atherosclerosis, in people diagnosed with Diabetes.
Atherosclerosis - the main cause of cardiovascular diseases - starts already in childhood. The Tyrolean Early Vascular Ageing-study aims to improve the vascular health of Tyrolean adolescents by a multi-layer intervention program.
The prevailing view in telomere epidemiology is that leukocyte telomere length (LTL) is associated with atherosclerotic cardiovascular disease (ACVD) since it serves as a biomarker of the cumulative burden of inflammation and oxidative stress during adult life. However, our recent results indicate that telomere length (TL) is mainly determined before adulthood, by TL at birth and TL attrition during growth. They also demonstrate that short telomeres precede the clinical manifestation of atherosclerosis. The investigators therefore hypothesize that LT is not a simple marker, but a major determinant of arterial aging. Two mechanistic hypotheses may explain an active role of short telomeres in accelerated arterial aging and development of ACVD. The first is that a short TL at the leukocyte level reflects a short TL in endothelial progenitor cells (EPC). Cell replicative capacity being TL-dependent, short telomeres in the EPC would therefore be responsible for diminished replication capacity and vascular repair potential, thereby increasing the vulnerability for developing age-related arterial diseases. The second hypothesis is that a short LTL reflects short TL in arterial wall cells, leading to an increase in the number of senescent vascular cells. Senescent cells are known to alter their secretion pattern, a phenomenon called senescence-associated secretory phenotype (SASP), and thus contribute to tissue injury by promoting inflammation and tissue remodeling leading to lesion progression. These assumptions cannot be tested by LTL measurements alone. The investigators propose, therefore, a model that makes it possible to examine different elements of TL dynamics in different tissues and cell types: leukocytes, circulating EPCs, in situ EPCs and arterial resident cells (mainly smooth muscle cells) in patients with or without atherosclerosis. Our model is based on the following observations: - TL is synchronized (equivalent) across somatic tissues/cells of the newborn: an individual with short telomeres (relative to his pairs) in one tissue should also have short telomeres (relative to his pairs) in other tissues. - TL in EPCs (both circulating and in situ) determines the cell proliferative ability and therefore capacity for vessels repair during aging. - TL in the cells of the arterial wall determines the number of senescent cells that therefore contribute to tissue injury through their change of phenotype. The general aim of the present project is to examine the mechanistic links between arterial aging and TL in these different cell types.
The hypothesis of this study is that neural regulations of the atherosclerotic plaque, identified in the murine model of atherosclerosis, could also exist in human pathology. The dysregulation status of the autonomic nervous system is typical of several cardiovascular diseases, but the role it exerts in the modulation of important mechanisms at the basis of the atherosclerotic process progression has not been investigated yet. The main aim of this study will be to investigate, in the atherosclerotic plaque, the alterations of inflammatory and immune processes, the neural modulations and the presence of dysregulations of the autophagic process. The investigators will also associate the potential presence of neural modulations of the plaque to its stability/instability, from a clinical-translational point of view. Finally, the investigators aim at providing a solid basis for the development of novel therapeutic strategies, which could reduce the elevated health and welfare costs for the clinical management of cardiovascular pathologies such as atherosclerosis.
The Learning Registry is a retrospective, exempt study. Researchers form the Duke Clinical Research Institute (DCRI) will utilize de-identified data managed by Cerner for population health analytics as part of a ongoing registry of patients with atherosclerotic cardiovascular disease. Cerner is an electronic health record company utilized by a large number of health systems in the United States. As part of their services to the health systems that they work with, they have created platform for population health management called HealtheIntent. HealtheIntent uses individual data from patients at a health system collected through the EMR as well as other data streams in the health system (i.e. cost data), aggregates the data, and stores it on an Amazon Web Services cloud, accessible to both Cerner and the health systems, to perform large scale population health analytics. These data may be linked as well by Cerner to the National Death Index or other data sources depending on the individual relationship with the sites. For this retrospective study, the Study Start Date is the date contracts were executed; Primary Completion Date is the date the final dataset is available for analysis and manuscript development; Study Completion Date is the date the study is completed. Enrollment is the number of patient charts reviewed.
The objective of this study is to use a randomized, controlled trial to test the effectiveness of using gamification, financial incentives, or both to increase physical activity among patients with elevated risk for atherosclerotic cardiovascular disease (ASCVD). ASCVD is the leading cause of morbidity and mortality in the United States. Regular physical activity has been shown to reduce the risk of ASCVD, but less than 50% of US adults achieve enough physical activity to obtain these benefits.
The purpose of this study is to determine if evolocumab added to regular statin therapy improves vein graft patency after coronary artery bypass graft (CABG) surgery.
The purpose of this study is to test if a patient can be directly connected to a quality assurance (QA) database, traditionally known as a registry. Patient-reported outcomes (PRO) data will be entered into the database directly from a patient's mobile phone from their index procedure for 12 months. The investigators hope this study to be a "proof of concept" for such a distributed registry and evaluate 1) consistency of data acquisition, 2) engagement of patients, 3) overall value of patient-reported outcomes to enhance long term follow up.
The proposed study will investigate the clinical use of the ISCDX test that may differentiate between diverse stroke etiologies as listed below: Aim 1: Differentiate between cardioembolic and large artery atherosclerotic ischemic strokes, when hemorrhagic stroke is ruled out, as defined by TOAST classification of subtypes of acute ischemic stroke. Aim 2: In cases of ischemic strokes of unknown or "cryptogenic" etiology, determine the ability of biomarker blood tests to predict etiology between cardioembolic and large artery atherosclerotic.