Wild Blueberries and Cardiovascular Health in Middle-aged/Older Men and Postmenopausal Women (NCT04530916)
Antihypertensive and Vascular-Protective Effects of Wild Blueberries in Middle-Aged/Older Men and Postmenopausal Women.
🩺 Plain-English Summary (8th-Grade Level)
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality worldwide. Aging is the primary risk factor for CVD, in large part due to adverse modifications to the arteries. These modifications include vascular endothelial dysfunction and arterial stiffness. Vascular endothelial dysfunction is an initiating step in atherosclerosis, and is primarily caused by reduced nitric oxide (NO) bioavailability secondary to excessive superoxide-driven oxidative stress and inflammation. Endothelial dysfunction leads to arterial stiffness and the development of hypertension (HTN) which further increases CVD. Greater than 2/3 of the US population has elevated blood pressure or stage 1-HTN. As such, interventions that improve vascular endothelial dysfunction by increasing NO bioavailability and mitigating excessive oxidative stress and inflammation are needed. Blueberries are rich in bioactive compounds including flavonoids, phenolic acids, and pterostilbene. These compounds and their metabolites have been shown to attenuate oxidative stress and inflammation. The primary goal of this study is to assess the efficacy of blueberries to improve reduce blood pressure and improve vascular endothelial dysfunction and arterial stiffness in middle-aged/older men with elevated blood pressure or stage 1-HTN.
Who can join: Review the eligibility criteria below.
Location: Food and Nutrition Clinical Research Laboratory — Fort Collins, Colorado
Age range: 45 Years to 70 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Food and Nutrition Clinical Research Laboratory — Fort Collins, Colorado
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Hypertension
- Implementing a Home Blood Pressure Monitoring Program in Primary Care — New York, New York
- SPYRAL AFFIRM Global Study of RDN With the Symplicity Spyral RDN System in Subjects With Uncontrolled HTN — Birmingham, Alabama
- Stress and Blood Pressure Management for Caregivers — Columbus, Ohio
- Caveolin-1 and Vascular Dysfunction — Boston, Massachusetts
- The RADIANCE II Pivotal Study: A Study of the ReCor Medical Paradise System in Stage II Hypertension — Birmingham, Alabama
- Skills-Based Educational Strategies for Reduction of Vascular Events in Orange County — Irvine, California
Explore by condition: All Hypertension clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.