Mood Clinical Trial - Effects on Cognitive Functions & Mood of Food

Status Completed

Clinical Trial Summary

The purpose of this study is to investigate effects of a selected food product rich in polyphenol on cognitive performance and mood.

Clinical Trial Description

The metabolic syndrome (MetS) includes a cluster of dysfunctions that identifies subjects at risk of developing type-2 diabetes and cardiovascular disease (CVD). A key feature appears to be chronic increased inflammation and activation of the innate system. Consequently, increased low-grade inflammation has been connected to adverse effects on insulin sensitivity, glucose- and lipid metabolism, and blood pressure, and circulating markers of inflammation such as IL-6. A growing body of evidence also link low-grade inflammation to poorer cognitive functioning. Type 2 diabetes, MetS, and glucose intolerance are increasingly being associated with impaired cognition.

Dietary patterns which promote sub-clinical inflammation are increasingly being considered predictive of future risk of CVD and type-2 diabetes. Epidemiological data shows that a high consumption of vegetables and fruits is associated with a lowered risk of cancer and cardiovascular disease, which may be due to the high concentrations of polyphenols or other anti-oxidants that are found in such foods.

In the presently described project it is hypothesized that four weeks daily consumption of a product specific high in flavanols can improve metabolic risk variables and cognitive functions in healthy subjects.

The purpose is therefore to investigate effects of flavanols on cognitive functions and cardiometabolic risk, and to investigate relations between cardiometabolic risk markers and cognitive performance. The test product is a commonly used food product, known to be specifically rich in flavanols. The effects of the test product is compared with effects of a control product that is based on a similar food product but is lacking flavanols.

Test parameters:

Cognitive tests: Working memory tests (an oral test), selection attention test (measure also reaction time, a computerized test ), and stroop test (a computerized test.

Mood is determined for 6 different mood sensations using VAS scales.

Bio markers in blood: glucose regulation (glucose, insulin), markers of inflammation and oxidative stress (IL-6, MDA, oxLDL), blood lipids (total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides), vascular function (P-Selectin, PAI-1, NO), gut hormones involved in metabolism and satiety (PYY, GLP-1) gut hormon involved in mucosa integrity (GLP-2), markers of brain function (BDNF, neurotensin).

Blood pressure. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02243956
Study type	Interventional
Source	Lund University
Contact
Status	Completed
Phase	N/A
Start date	January 2014
Completion date	March 2015

View Details

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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.

Effects on Cognitive Functions and Mood of Food Products Rich in Polyphenols

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms