Hypertension Clinical Trials

This trial will evaluate whether a particular type of circulating white blood cell, monocytes, from type 2 diabetics with high blood pressure and vitamin D deficiency vs. sufficiency will induce hormones that increase blood pressure. Read Less

The purpose of this study is to determine if intensive lowering of systolic blood pressure (SBP), using FDA approved medications (antihypertensive), reduces Alzheimer's Disease pathology (i.e., excessive brain amyloid and tau protein deposition) in older adults at high risk for memory decline or dementia. Read Less

Women Veterans are the fastest growing segment of VA users. This dramatic growth has created challenges for VA to ensure that appropriate services are available to meet women Veterans' needs, and that they will want and be able to use those services. The EMPOWER QUERI 2.0 Program is a cluster randomized type 3 hybrid implementation-effectiveness trial testing two strategies designed to support implementation and sustainment of evidence-based practices for women Veterans in at least 20 VA facilities from 4 regions. Read Less

Nitric Oxide (NO) is an important molecule that is produced naturally in the body and that helps maintain healthy blood flow. Low availability of NO contributes to many diseases while administration of NO is therapeutic. In addition to being made naturally in the body, NO can be obtained through the diet via the Nitrate-Nitrite-NO cycle. Nitrate, which is abundant in green leafy vegetables and beetroot juice, is partially converted to nitrite by oral bacteria. The nitrate and nitrite are taken up into the blood and nitrite is converted into NO. Remaining nitrate in the blood is taken back up into the mouth by salivary glands and the cycle continues. Emerging studies suggest that the Nitrate-Nitrite-NO cycle may contribute to cardiovascular health. In addition, there have been many studies where dietary nitrate is given to increase NO and treat various conditions. The current study rests on the premise that the quality of the oral microbiome plays a major role in the Nitrate-Nitrite-NO cycle and hence cardiovascular health and the efficacy of dietary nitrate interventions. Investigators have begun to identify oral bacterial species that are effective nitrite producers as well as though that are nitrite depleters (those that interfere with nitrite production from nitrate). In laboratory experiments, certain bacterial species have been shown to block nitrate to nitrite conversion by other oral bacteria. These nitrite depleting species are found in a commercially available oral probiotic designed to improve oral health. The purpose of this study is to examine if use of the probiotic negatively affects the Nitrate-Nitrite-NO cycle. Nitrate to Nitrite conversion will be assessed by measuring plasma levels of nitrite before and after consumption of nitrate-rich beetroot juice. Dietary nitrate to plasma nitrite conversion will assessed at baseline and after one week of consumption of the probiotic or a placebo (follow-up). The primary hypothesis of this study is that participants that consume the probiotic will have lower nitrate to nitrite conversion at follow-up compared to baseline and that there will be no significant change in nitrate to nitrite conversion between baseline and follow-up for participants who consume the placebo. While this study does not aim to treat any specific disease, it is intended to elucidate a basic physiological function that may be relevant to cardiovascular health and certain NO-based therapeutics. Read Less

This is a pilot, crossover trial in which the investigator will determine if retiming of one anti-hypertensive medication from morning to evening can effectuate normal blood pressure dipping patterns in children and adolescents with chronic kidney disease. Read Less

This is a double-blind randomized placebo-controlled crossover clinical trial of efficacy and safety of an FDA-approved angiotensin receptor blocker (losartan) to improve cardiopulmonary outcomes in individuals with pre-Chronic Obstructive Pulmonary Disease (COPD) due to prolonged exposure to secondhand tobacco smoke. Read Less

Hypertension and obesity are both major risk factors for cardiovascular disease (CVD), a leading cause of death for Black women in the United States. The investigators propose examining the feasibility and acceptability of the 12-week RN-CHeFRx (Real Nourishment and Cooking Healthy Food is Rx) intervention - grocery delivery, cooking classes, and nutrition education - for Black women with hypertension and obesity to improve nutritious eating habits and blood pressure control. Read Less

This is a single site, single-blinded parallel randomized control trial that investigates a multi-level intervention to improve postpartum blood pressure in women with hypertensive disorder pregnancy. The investigators will recruit women diagnosed with a hypertensive disorder of pregnancy, identified between 3rd trimester and 2 weeks post-delivery. The investigators will randomize participants to receive usual care home blood pressure monitoring for 6 weeks versus an intervention of usual care + blood pressure and weight monitoring + a doula trained in heart health. This trial will be conducted in partnership with a local community-based organization, Healthy Start Inc. Read Less

The investigators long-term goal is to better understand novel interventions to promote cardiovascular health in humans. The goal of the proposed research is to investigate whether there is sex-specificity in the effects of dietary capsaicin on mechanisms regulating nitric oxide (NO) bioavailability, its effect on key markers of cardiovascular (CV) health, including BP, macro- and microvascular function, and arterial stiffness. This knowledge will provide critical insight into the effects of dietary capsaicin on CV health and will guide future trials. Read Less

The purpose of this study in patients undergoing routine care epidural spinal cord stimulation (SCS) is to determine 1) whether SCS reduces arterial blood pressure (BP) in patients which chronic low back pain and hypertension, 2) whether higher baseline BP (i.e., hypertension) predicts reductions in pain following SCS, and finally 3) whether different SCS waveforms elicits stimulus-evoked compound action potentials (ECAPs) in spinal cord and at the cortex (electroencephalography, and magnetoenchphalography). Read Less

The UAB Cardiovascular Research Biobank (CARBON) will be a resource that contains biological materials, such as DNA samples, in addition to health and personal information on a large number of people over time. It will be set up so that it can be used in the future as a resource for researchers undertaking a wide range of medical research. Read Less

The goal of this clinical trial is to test the effects of 10 weeks of exercise on overall brain health, reduction in blood pressure, and the number of blood vessels in the back of the eyes in patients with hypertension and have a body mass index ≥ 25 kg/m2. The main question\[s\] it aims to answer are: * To test the effect of moderate vs intensive exercise on Brain Care Score outcomes. * To ascertain the differential impact of moderate vs high intensity exercise in reducing hypertension and its downstream effects. Read Less