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- Klinische proef NCT03065166
Dried Cabernet Grapes and Cardiovascular Risk Markers (RZN)
Effects of CabernayZyns (Dried Cabernet Grapes) Intake on Vascular Function and Platelet Reactivity in Postmenopausal Women
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
The initiation and progression of atherosclerotic cardiovascular disease (CVD) is multifactorial in nature, and is currently thought of as a chronic inflammatory condition. To reduce the risk of CVD and its associated health care costs in California and elsewhere, nutrition and health recommendations strongly advocate the consumption of a diet rich in fruits and vegetables. Such recommendations are based largely on epidemiological data; the mechanisms underlying the putative positive effects of plant food-rich diets are poorly defined and an area of active debate.
In addition to essential vitamins and minerals, fruits and vegetables contain a number of bioactive compounds that may be involved in vascular function. In this regard, epidemiological studies have noted a significant inverse relationship between the intake of plant foods rich in polyphenols and the risk of both all-cause mortality and CVD. For example, the "French paradox" refers to diet patterns that, despite being high in saturated fat, are associated with a relatively low cardiovascular risk, which may be due, in part, to a robust intake of polyphenols found in red wine, grapes, and other plant foods. Red wine contains an array of phytochemicals that have been proposed to improve cardiovascular health, with a great focus on polyphenols. However, grape products such as dried cabernet grapes also contain substantial amounts of polyphenols that may be vasculoprotective.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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California
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Davis, California, Verenigde Staten, 95616
- Ragle Human Nutrition Center
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Postmenopausal female: 50-70 years
- Women: lack of menses for at least one year and FSH 23-116.3 mlU/mL
- Subject is willing and able to comply with the study protocols.
- Subject is willing to participate in all study procedures
- BMI 25.0 - 40 kg/m2
- Weight ≥ 110 pounds
Exclusion Criteria:
- BMI ≥ 40 kg/m2
- Dislike or allergy for grape products and raisins
- Self-reported use of daily anticoagulation agents including aspirin, NSAIDs
- Vegan, Vegetarians, food faddists or those consuming a non-traditional diet
- Alcohol consumption > 3 drinks/week (i.e. 1 bottle of beer, 1 glass of wine, and 1 shot of hard liquor)
- Fruit consumption ≥ 2 cups/day
- Vegetable consumption ≥ 3 cups/day for females
- Fatty Fish ≥ 3 times/week
- 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
- Inability to properly place or wear the PAT probes or abnormal measurements on pre-screening PAT
- Abnormal Liver, CBC or Chemistry 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
- Currently taking prescription drugs or supplements.
- Use of multi-vitamin and mineral 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
- Screening LDL ≥ 190 mg/dl for those who have 0-1 major risk factors apart from LDL cholesterol (i.e. family history of premature coronary artery disease (male first degree relative < 55 years; CHD in female first degree relative < 65 years), cigarette smoker, HDL-C ≤ 40 mg/dL].
- Screening LDL ≥ 160 mg/dl for those who have 2 major risk factors apart from LDL cholesterol [i.e. family history of premature coronary artery disease (male first degree relative < 55 years; CHD in female first degree relative < 65 years), cigarette smoker, HDL-C ≤ 40 mg/dL].
(using NCEP calculator http://cvdrisk.nhlbi.nih.gov/calculator.asp);
- Screening LDL ≥ 130 mg/dl for those who have 2 major risk factors apart from LDL cholesterol [i.e. family history of premature coronary artery disease (male first degree relative < 55 years; CHD in female first degree relative < 65 years), cigarette smoker, HDL-C ≤ 40 mg/dL], and a Framingham 10-year Risk Score 10-20% (using NCEP calculator http://cvdrisk.nhlbi.nih.gov/calculator.asp).
- Current enrollee in a clinical research study.
The following special populations will be excluded:
- Individuals who are not yet adults (infants, children, teenagers)
- Pregnant women
- Prisoners
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: Raisin Treatment
3.2 ounces of dried Cabernet wine grapes.
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Subjects will consume 3.2oz of dried Cabernet grapes during a single intervention time point.
Subjects will consume 95g of whole wheat bagel during a single intervention time point.
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Ander: Bagel Control
One 95g whole wheat bagel.
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Subjects will consume 3.2oz of dried Cabernet grapes during a single intervention time point.
Subjects will consume 95g of whole wheat bagel during a single intervention time point.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Change in Postprandial Micro-vascular Function
Tijdsspanne: Baseline and 2-hour measures on day 0 and day 7.
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To determine whether an acute intake of dried Cabernet grapes will improve vascular function, as measured using peripheral artery tonometry (PAT).
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Baseline and 2-hour measures on day 0 and day 7.
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Platelet Aggregation
Tijdsspanne: Baseline and 2-hour measures on day 0 and day 7.
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To determine whether an acute intake of dried Cabernet grapes will alter platelet reactivity, as measured by Chrono-log platelet aggregometer device.
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Baseline and 2-hour measures on day 0 and day 7.
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Nitrate/Nitrite
Tijdsspanne: Baseline and 2-hour measures on day 0 and day 7.
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Blood analysis to determine whether an acute intake of dried Cabernet grapes will affect plasma circulating nitrate and nitrite levels.
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Baseline and 2-hour measures on day 0 and day 7.
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Baseline Complete Metabolic Panel
Tijdsspanne: Baseline measures on day 0 and day 7.
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Blood analyses will include measurements of complete blood cell count, comprehensive metabolic panel, and lipid profile.
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Baseline measures on day 0 and day 7.
|
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Postprandial Complete Metabolic Panel
Tijdsspanne: 2-hour measures on day 0 and day 7.
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Blood analyses will include measurements of complete blood cell count, comprehensive metabolic panel, and lipid profile.
|
2-hour measures on day 0 and day 7.
|
|
Body Weight
Tijdsspanne: Baseline measure on day 0 and day 7.
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Body weight will be recorded at baseline on initial visit as well as visit one week after.
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Baseline measure on day 0 and day 7.
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Blood Pressure
Tijdsspanne: Baseline measure on day 0 and day 7.
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The office blood pressure measurement will be obtained (3 measurements 5 minutes apart after a 15 minute rest).
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Baseline measure on day 0 and day 7.
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Andere studie-ID-nummers
- 944091
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
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