Active clinical trials for "Hypertension"

The purpose of this study is to evaluate the pharmacokinetic characteristics of CKD-828(Fixed Dose Combination Tablet; Telmisartan and S-Amlodipine) in healthy volunteer.

Interventions such as Relaxation Response appear to have widespread effects on physiology. Endothelial function, changes in genomic expression, several biomarkers have been associated with chronic stress and cardiovascular dysfunction, and there is some suggestion that elicitation of the Relaxation Response may lead to improvement in-or normalization of-these factors. By studying the impact of the Relaxation Response on endothelial function, genomic expression and biomarkers among subjects with hypertension, it may be possible to better understand the biologic underpinnings of Relaxation Response-type interventions. Furthermore, with a greater understanding of the physiologic mechanisms by which the Relaxation Response works, it may be possible to better target other symptoms and conditions that can be effectively treated by such an intervention.

Despite unequivocal proof that tight control of blood pressure with antihypertensive medication can prevent hypertensive complications-including strokes, myocardial infarcts, heart failure, end-stage renal disease, and death- blood pressure remains uncontrolled in the majority of individuals with hypertension. We propose a novel patient-centered intervention that combines monetary incentives and a social psychological intervention to help patients sustain blood pressure control once incentives are no longer offered by strengthening intrinsic motivation to control blood pressure among two vulnerable populations: African Americans, who suffer disproportionately from hypertension, and Mexican Americans, who have the lowest hypertension control rates of any demographic group in the United States. If the intervention is successful, it could be adapted as a set of tools to apply in clinical practice to improve outcomes of a range of chronic diseases, by maximizing the motivation of patients to optimize their treatment.

Hypertension is a major risk factor for cardiovascular disease. Hypertension and abdominal obesity are associated with dysfunction of the main mechanisms of cardiovascular regulation, the autonomic nervous system and the vascular endothelium. Increased sympathetic activity and endothelial dysfunction are associated with increased arterial stiffness, which is an independent risk factor for the development of hypertension and other cardiovascular diseases. The recommended intervention for controlling BP in pre- and stage 1- hypertensive individuals is lifestyle modifications such as exercise, and not drug therapy.Although aerobic and resistance exercise has been shown to be beneficial for the cardiovascular system, special populations such as the elderly and obese may have physical and/or musculoskeletal limitations which may limit their participation in these exercise modalities. Stretching is a form of exercise that is widely recommended for injury prevention. Among the benefits of stretching are an increased flexibility, enhanced muscular coordination, stress relief, improved range of motion and an improved posture. Previous studies have shown stretching training to increase arterial compliance and acutely increase sympathetic nerve activity. In addition, low flexibility levels have been found to be associated with arterial stiffness. Given that stretching of skeletal muscle causes an increase in sympathetic nerve activity; repetitive stimulation of sympathetic activity induced by habitual stretching, might chronically reduce resting sympathetic activity. The reduction in sympathetic activity might result in a decrease of arterial stiffness and blood pressure. The investigators hypothesis is that 8 weeks of stretching training would reduce arterial stiffness, blood pressure and sympathetic activity in obese women. The investigators also hypothesize that the improved arterial function with stretching would be associated with increases in flexibility levels.

Many primary care patients, especially in inner-city settings, do not achieve targets for blood pressure and glycemic control. There is an urgent need to enhance treatment for those who do not reach goals within the usual clinical care system. We propose to develop a multi-component intervention grounded in the Chronic Care Model, and sustainable in resource-challenged settings. Through collaboration with home health nursing and with the use of home telemetry for feedback and intensification of therapy, we will augment usual clinical services to improve health outcomes for diabetes patients who have not been able to reach therapeutic goals. There are three specific aims. First, we will establish a feasible, practical and sustainable collaborative model between the primary care sites of our practice-based research network (NYC RING), clinical researchers at the Diabetes Research and Training Center, and The Montefiore Home Health Organization, integrating the unique expertise of each of the partners and defining the roles and responsibilities of each. Second, we will develop and refine the components of the intervention, to include training primary care providers and home health nurses to integrate the technical, psychosocial and communication processes for implementation of the intervention. Third, we will assess the feasibility of the collaborative intervention by implementing the intervention for 25 primary care patients and obtain preliminary estimates of effectiveness by comparing outcomes to 25 patients receiving usual care. Our proposal includes plans to develop feasible procedures for data collection, with qualitative and quantitative methods of assessing process and outcome measures. We will use these preliminary data to revise the intervention and prepare an R18 application to further develop and test the intervention in multiple inner-city primary care sites serving low-income diabetes patients. This proposal is for secondary prevention of diabetes complications, targeting a population known for health disparities and a high burden from this chronic disease.

In this study we will examine if the insulin-induced microvascular effects will occur after a physiological stimulus (i.e. a oral glucose tolerance test). With that the physiological importance of the insulin-induced microvascular dilatation can be elucidated. In this study we hypothesize that oral glucose intake and consequently the endogenous induced hyperinsulinemia will lead to insulin-induced microvascular dilatation in healthy normotensive subjects. Furthermore, we suggest that the insulin-mediated microvascular dilatation, resulting from this physiological induced hyperinsulinemia, will be less in hypertensive and obese subjects compared to healthy controls.

The purpose of this study is to determine if there is a difference in the ocular signs and symptoms of subjects' eyes using Xalatan® 0.005% versus Travatan Z® 0.004% based on the outcome of subject assessment and clinical assessment in patients with Ocular Hypertension or Glaucoma with mild to moderate dry eye at baseline in accordance with the Oxford Grading Scale.

The purpose of this study is to examine if the ingestion of a standard dose of sildenafil enhances the athletic performance of competitive athletes when exercising in a high pollutant environment verses a low air pollutant environment.

The study hypothesis is that body iron levels are important in determining the increase in lung blood pressure that occurs in response to low oxygen levels. The purpose of this study is to determine whether this is true at high altitude, where oxygen levels are low.

The purpose of this study is to investigate the role of endotoxins and the endotoxin mediated immune activation pathway in patients with alcoholic hepatitis. Also, to determine the effect of Liver assist (liver dialyses) intervention on these parameters in patients with severe alcoholic hepatitis.