Vascular Dilation Clinical Trial
Official title:
The Influence of Daily Strawberry Intake on Vascular Health in Elderly Men
Verified date | May 2023 |
Source | University of California, Davis |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The overall objective of this proposed trial is to examine the vascular protective effects provided by the daily consumption of 39g of freeze dried strawberry powder (FDSP) for four weeks. The study population will be older men (60-80 years of age).
Status | Terminated |
Enrollment | 4 |
Est. completion date | December 31, 2022 |
Est. primary completion date | December 31, 2022 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 60 Years to 80 Years |
Eligibility | Inclusion Criteria: - Subject is willing and able to comply with the study protocols. - Subject is willing to participate in all study procedures - BMI 25.0 - 35 kg/m2 Exclusion Criteria: - BMI = 35 kg/m2 - Visit 1 Reactive Hyperemia Index (RHI; EndoPAT 2000) = 2.8 - Dislike or allergy strawberries - Self-reported use of daily anticoagulation agents including aspirin, NSAIDs - Prescription medications other than on a 6 month self-reported stable dose of medications for lipid lowering and/or hypertension. - Vegan, Vegetarians, food faddists or those consuming a non-traditional diet - Fruit consumption = 3 cups/day - Regular consumption of strawberries (2-3 servings/week) - Vegetable consumption = 4 cups/day - Coffee/tea = 3 cups/day - Dark chocolate = 3 oz/day - Self-reported restriction of physical activity due to a chronic health condition - Self-reported chronic/routine high intensity exercise - Self-reported diabetes - Blood pressure = 140/90 mm Hg - Self-reported renal or liver disease - Self-reported heart disease, which includes cardiovascular events and stroke - Peripheral artery disease Raynaud's syndrome or disease - Inability to properly place or wear the PAT probes or abnormal measurements on pre- screening PAT - Abnormal Metabolic or CBC panels (laboratory values outside the reference range) if determined to be clinically significant by the study physician. - Self-reported cancer within past 5 years - Self-reported malabsorption - Supplement use other than a general formula of vitamins and minerals that meet the RDA - Not willing to stop any supplement use, including herbal, plant or botanical, fish oil, oil supplements a month prior to study enrollment. - Indications of substance or alcohol abuse within the last 3 years - Cannabis use - Current enrollee in a clinical research study. |
Country | Name | City | State |
---|---|---|---|
United States | University of California, Davis; Department of Nutrition | Davis | California |
Lead Sponsor | Collaborator |
---|---|
University of California, Davis |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | blood pressure | systolic and diastolic blood pressure | 4 weeks | |
Other | plasma lipids | clinical lipid panel | 4 weeks | |
Primary | Framingham Reactive Hyperemia Index (fRHI) | fRHI as a measure of microvascular function will be measured by peripheral arterial tonometry (PAT). | 4 weeks | |
Secondary | platelet aggregation | optimal platelet aggregometry using collagen and adp as agonist | 4 weeks | |
Secondary | Th17 cytokines | TH17 Luminex panel: Interleukin (IL)-1b, IL-4, IL-6, IL-10, IL-17a, IL-21, IL-22, IL-23, IL-31, IL-33, IFNgamma, TNFalpha, IL-17f. | 4 weeks | |
Secondary | insulin like growth factor (IGF) and binding proteins (IGFBP) | Luminex panel: IGF-1, -2 and IGFBP 1-7 | 4 weeks | |
Secondary | Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase | soluble form marker of oxidative stress | 4 weeks | |
Secondary | total nitrate and nitrite | plasma total nitrate and nitrite | 4 weeks |
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