Active clinical trials for "Hypertension"

Flavonoids are polyphenolic compound mainly found in fruits and vegetables with numerous beneficial health effects as protection against cardiovascular diseases by an antihypertensive effect. The intestinal microbiota plays a key role in the metabolization of these compounds, so that differences in the composition and activity of the microbiota between individuals can generate different metabotypes. Flavonoids are found mainly in their conjugated form linked to the monosaccharide rhamnose and need to be metabolized by the intestinal bacteria, releasing the rhamnose, to be absorbed and, thus, bioactive. The bacterial enzyme responsible of rhamnose hydrolysis is α-L-rhamnosidase, whose activity can vary considerably depending on the composition of the microbiota. In fact, a great interindividual variability has been observed in the ability to absorb flavonoids, which allows to classify individuals according to the corresponding metabotype. In a previous project, the investigators confirmed the interindividual differences in the bioavailability of hesperidin and narirutin, two flavonoids naturally present in orange juice. However, the role of the intestinal microbiota in the metabolism of hesperidin and narirutin needs to be elucidated. On this basis, the following hypothesis is presented: individuals with arterial hypertension can be classified into 3 different metabotypes that are the result of the ability to absorb hesperidin and narirutin, determined by the urinary excretion of their respective metabolites, and these metabotypes are associated with different microbiota enterotypes and with different fecal α-L-rhamnosidase activity.

This study will measure the effect of a novel pharmacy practice model on pediatric patients with hypertension. In North Louisiana, many patients have to travel to see subspecialists for treatment for hypertension and elevated blood pressure, which has many costs including direct medical costs, direct nonmedical costs, and indirect costs like missed time from work, school, or social obligations. Also, many patients who have to travel to get to their appointments have a high rate of missed appointments, which can be bad for overall health. This study will use a pharmacist to perform collaborative drug therapy management with pediatric cardiologists to manage therapy for patients with hypertension or elevated blood pressure. Patients will monitor blood pressure at home and follow up with the pharmacist by telecommunications. Pharmacist drug therapy management and telemedicine have been studied separately, but this is the first study with pharmacist drug therapy management by telemedicine for pediatric patients. If this model is successful, it could be replicated in other rural areas to improve patient care and reduce healthcare costs.

The purpose of this study was to determine the effectiveness of using a custom-designed mobile application to improve blood pressure (BP) and promote adherence to antihypertensive medication regimens. This was a prospective, multicenter, randomized controlled trial. Patients were randomized to an intervention or control group for three months. Antihypertensive medication refill history was assessed three months before, during and three months after the study period. Continuous outcome measures investigated were systolic/diastolic BP and medication refill history, using the cumulative medication gap (CMG) score.

The objective of the study is to evaluate the safety of renal denervation using the iRF System and to understand any potential improvement in hypertension.

A large segment of our patient population is diagnosed with hypertensive disorders of pregnancy, including gestational hypertension and pre-eclampsia. New guidelines from the American College of Obstetricians and Gynecologists recommend postpartum monitoring of blood pressures via blood pressure checks on day 3 postpartum and between days 7-10 postpartum. Our purpose is to compare the effectiveness of using a Bluetooth-enabled home blood pressure monitoring platform to the standard postpartum office-based blood pressure monitoring in performing the recommended postpartum follow-up for patients with hypertensive disorders of pregnancy.

The purpose of this study is to examine if chronic paracetamol dosing increases blood pressure in patients with known high blood pressure.

Stroke is the third leading cause of death in the United States. Of those who are affected by stroke, a third becomes permanently disabled. Risk factors for stroke include, but are not limited to, advancing age, physical inactivity, arterial stiffness, and most commonly, high blood pressure. Stroke is a major form of a much boarder problem, cardiovascular disease (CVD). CVD is considered the primary cause of death in the US. Interestingly, increased arterial stiffness of elastic arteries (carotid and aorta) has been shown to be strongly correlated to CVD and stroke. Increased arterial stiffness is considered an independent risk for the development of CVD and stroke. Hence, arterial stiffness has been suggested as a potential therapeutic target for CVD and more specifically stroke. Recently, whole-body vibration (WBV) exercise has been proposed as a new and effective method to improve muscle mass and muscle strength in younger and older individuals. It is known that systemic arterial stiffness decreased 40 min after a single WBV session in healthy men. In our laboratory, we have shown that leg arterial stiffness decreases after a session of WBV. Taken together, this data seems to suggest WBV may be used as a viable way to decrease arterial stiffness. Special populations, such as post-stroke patients, may be unwilling or unable to perform WBV exercise so an inactive form of exercise (vibration) therapy is needed. Passive vibration (PV), allows patients to lie in an inactive, supine position, with their legs placed onto the vibration plate. This exposes the lower limbs to continuous vibration without performing voluntary muscle contraction. PV has been shown to increase skin blood flow on the vibrated extremity through vasodilation in healthy individuals and type 2 diabetics. Previous work in our laboratory has demonstrated that a 10-min session of PV on the legs decreases augmentation index (AIx) , a marker of pressure wave reflection, as well as leg and systemic PWV through decreases in local peripheral resistance in young men. However, the effects of PV on arterial function in post-stroke patients are unknown. It is hypothesized that post-stroke patients will demonstrate a decrease in leg PWV and central AIx. However, greater responses are expected with the lower vibration frequency.

Many studies have studied the effect and safety of renal denervation. However, it remains unknown what the exact mechanism behind renal denervation is. It can be hypothesized that a difference in renal blood flow occurs after treatment. In the light of this ignorance, current study will investigate whether renal denervation leads to a difference in renal blood flow after treatment with renal denervation.

The purpose of this study is to evaluate the effects of green tea on body weight, waist circumference, metabolic profile, inflammation, blood pressure and endothelial function in obese pre-hypertensive women.

The purpose of this study is to learn more about the safety and dosing of sildenafil in infants.