Postprandial Effects of Walnut Components Versus Whole Walnuts on

Status Completed

Clinical Trial Summary

The purpose of this study is to evaluate the acute, postprandial effects and mechanism of action of various walnut components (separated nut skins, de-fatted nut meat, nut oil) versus whole walnuts on oxidative stress, inflammation and measures of platelet and endothelial function in healthy adults with moderately elevated cholesterol levels.

Clinical Trial Description

Walnuts contain high contents of polyunsaturated fatty acids (PUFA), particularly linoleic acid and linolenic acid. The high PUFA content has been suggested to reduce CVD risk through decreasing total and LDL-cholesterol concentrations, and increasing HDL-C concentrations. In addition, walnuts are rich in substances such as ellagic acid (a polyphenol), antioxidants, vitamin E, fiber, essential fatty acids, flavanoids, and phenolic acids. Polyphenolic compounds are believed to have multiple biological effects influencing oxidative stress, platelet function, inflammation, and cancer initiation and propagation. There is interest in identifying foods with these and other favorable compounds to test their efficacy in real world settings to further understand their role in the human diet. Despite positive benefits found in consumption of the walnuts, it is not known which specific component of the walnut (i.e., whole walnut, walnut skin, defatted walnut, or walnut oil) is most beneficial to health. The investigators hypothesize that maximum improvements in oxidative stress, inflammatory markers, platelet and endothelial function will be observed following consumption of the whole nut versus isolated walnut components, thereby leading to a recommendation to consume walnuts. In addition, results from the research proposed will provide new information about the antioxidant, inflammatory, platelet activity and endothelial effects of the different walnut components and the synergistic effects these components have in the postprandial state. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00938340
Study type	Interventional
Source	Penn State University
Contact
Status	Completed
Phase	N/A
Start date	August 2007
Completion date	May 2009

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT02122198` - Vascular Mechanisms for the Effects of Loss of Ovarian Hormone Function on Cognition in Women	N/A
Completed	`NCT02502812` - Bioequivalence Study of Clopidogrel 75 mg in Two Tablet Formulations Relative to Reference Tablet in Healthy Subjects	Phase 1
Recruiting	`NCT04216342` - Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Fx-5A in Healthy Volunteers	Phase 1
Completed	`NCT03654313` - Single and Multiple Ascending Doses of MEDI6570 in Subjects With Type 2 Diabetes Mellitus	Phase 1
Completed	`NCT03646656` - Heart Health Buddies: Peer Support to Decrease CVD Risk	N/A
Completed	`NCT02081066` - Identification of CETP as a Marker of Atherosclerosis	N/A
Completed	`NCT02147626` - Heart Health 4 Moms Trial to Reduce CVD Risk After Preeclampsia	N/A
Not yet recruiting	`NCT06405880` - Pharmacist Case Finding and Intervention for Vascular Prevention Trial	N/A
Recruiting	`NCT03095261` - Incentives in Cardiac Rehabilitation	N/A
Not yet recruiting	`NCT02578355` - National Plaque Registry and Database	N/A
Completed	`NCT02868710` - Individual Variability to Aerobic Exercise Training	N/A
Completed	`NCT02998918` - Effects of Short-term Curcumin and Multi-polyphenol Supplementation on the Anti-inflammatory Properties of HDL	N/A
Completed	`NCT02711878` - Healing Hearts and Mending Minds in Older Adults Living With HIV	N/A
Completed	`NCT02589769` - Effects of Reduction in Saturated Fat on Cholesterol and Lipoproteins in Lean and Obese Persons	N/A
Recruiting	`NCT02885792` - Coronary Artery Disease in Patients Suffering From Schizophrenia	N/A
Completed	`NCT02640859` - Investigation of Metabolic Risk in Korean Adults
Completed	`NCT02652975` - Anticancer Treatment of Breast Cancer Related to Cardiotoxicity and Dysfunctional Endothelium	N/A
Completed	`NCT02272946` - Effect of IL--1β Inhibition on Inflammation and Cardiovascular Risk	Phase 2
Completed	`NCT02657382` - Mental Stress Ischemia: Biofeedback Study	N/A
Recruiting	`NCT02265250` - Pilot Study-Magnetic Resonance Imaging for Global Atherosclerosis Risk Assessment

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Postprandial Effects of Walnut Components Versus Whole Walnuts on Cardiovascular Disease (CVD) Risk Reduction

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms