Coconut Sugar Lowers Blood Pressure and Arterial Stiffness in Middle-aged and Older Adults
Study Details
Study Description
Brief Summary
The goal of this intervention is to determine the efficacy of coconut sap powder (CSP) to lower arterial stiffness and blood pressure in middle-aged and older adults. Participants will be randomized to the CSP arm or Placebo arm of the study. Primary endpoints include: aortic stiffness assessed by carotid-femoral pulse wave velocity, resting brachial and (non-invasive) carotid blood pressure, and carotid stiffness (e.g. Beta stiffness index, Carotid compliance, Elastic modulus, Distensibility).
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Placebo Comparator: Placebo Capsules containing aspartame (1.5 g/day) were taken orally once daily for 8 weeks. |
Dietary Supplement: Placebo
Capsules containing aspartame (1.5 g/day) were taken orally once daily for 8 weeks.
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Experimental: Coconut Sap Powder Capsules containing coconut sap powder (CSP; 1.5 g/day) were taken orally once daily for 8 weeks. |
Dietary Supplement: Coconut Sap Powder (CSP)
CSP was given once daily (1.5 g/day) for 8 weeks.
Other Names:
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Outcome Measures
Primary Outcome Measures
- Change in aortic stiffness [Baseline and 8 weeks]
Carotid-femoral pulse wave velocity (meters/second)
- Change in systolic and diastolic brachial blood pressure [Baseline and 8 weeks]
Manual sphygmomanometer (mmHg)
- Change in carotid systolic and diastolic blood pressure [Baseline and 8 weeks]
Applanation tonometry of carotid artery (mmHg)
- Change in carotid artery stiffness - beta stiffness index [Baseline and 8 weeks]
Carotid artery Beta stiffness index (AU)
- Change in carotid artery stiffness - carotid compliance [Baseline and 8 weeks]
Carotid artery carotid compliance (mmHg/mm^2)
- Change in carotid artery stiffness - elastic modulus [Baseline and 8 weeks]
Carotid artery elastic modulus (kilopascals, kPa)
- Change in carotid artery stiffness - Young's modulus [Baseline and 8 weeks]
Carotid artery Young's modulus (kilopascals, kPa)
- Change in carotid artery stiffness - distensibility [Baseline and 8 weeks]
Carotid artery distensibility (10^-3/kilopascals)
Secondary Outcome Measures
- Change in inflammatory biomarker - interleukin 6 [Baseline and 8 weeks]
Biomarker: Interleukin 6 pg/mL
- Change in inflammatory biomarker - interleukin 10 [Baseline and 8 weeks]
Biomarker: Interleukin 10 pg/mL
- Change in inflammatory biomarker - interleukin 1 beta [Baseline and 8 weeks]
Biomarker: Interleukin 1 beta pg/mL
- Change in inflammatory biomarker - tumor necrosis factor alpha [Baseline and 8 weeks]
Biomarker: Tumor necrosis factor alpha pg/mL
- Change in inflammatory biomarker - monocyte chemoattractant protein 1 [Baseline and 8 weeks]
Biomarker: Monocyte chemoattractant protein 1 pg/mL
- Change in inflammatory biomarker - high sensitivity C-reactive protein [Baseline and 8 weeks]
Biomarker: High sensitivity C-reactive protein mg/mL
- Change in oxidative stress biomarkers - superoxide dismutase [Baseline and 8 weeks]
Biomarker: Superoxide dismutase U/mL
- Change in oxidative stress biomarkers - Catalase [Baseline and 8 weeks]
Biomarker: Catalase U/mL
- Change in oxidative stress biomarkers - Oxidized low density lipoprotein [Baseline and 8 weeks]
Biomarker: Oxidized Low density lipoprotein mU/L
Eligibility Criteria
Criteria
Inclusion Criteria:
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Body mass index 18-35 kg/m2
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Brachial blood pressure <140/90
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Nonsmoker
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No known clinical disease, or suggestive signs or symptoms of clinical disease
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Free of alcohol or drug dependence
Exclusion Criteria:
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taking any anti-hypertensive, lipid lowering or other cardiovascular altering medications
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Known allergies to coconut or tree nuts (i.e., cashews, almonds, or pistachios)
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Engaging in vigorous intensity exercise
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Ball State University | Muncie | Indiana | United States | 47306 |
Sponsors and Collaborators
- Ball State University
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- COCOZEN