The Impact of Acute Trans-resveratrol Administration on Whole Body Metabolism During Cognitive Demand.
1 other identifier
interventional
27
0 countries
N/A
Brief Summary
Background: Increased cerebral vaso-dilation during cognitive demand is hypothesised to improve cognitive performance due to an improved micronutrient status. Despite previous research demonstrating that oral resveratrol can modulate cerebral haemodynamics, this has not translated into expected improvements to cognitive performance in young, healthy populations. As the brain is the most metabolic organ in the body, even subtle changes to fuel utilization and overall energy expenditure are detectable during cognitive demand. The measurement of both overall energy expenditure and fuel utilization may provide further insight to the effects of resveratrol and whether oral supplementation of this polyphenol can provide clear, cognitive benefits in a young, healthy sample. Objectives: The current study investigated the metabolic consequences of resveratrol on whole body metabolism and fuel oxidisation during cognitive performance. Methods: This repeated measures, double blind, placebo controlled, balanced design required participants (N=24 for metabolic activity \& N=26 for cognitive outcomes) to complete a serial subtraction demand battery at baseline, 45 minutes, 2 and 3 hours following 500 mg, 250 mg trans-resveratrol or inert placebo, on three separate occasions whilst connected to an on-line gas analysis system.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started May 2015
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 7, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 18, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
December 18, 2015
CompletedFirst Submitted
Initial submission to the registry
April 9, 2018
CompletedFirst Posted
Study publicly available on registry
June 6, 2018
CompletedJune 6, 2018
June 1, 2018
8 months
April 9, 2018
June 4, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Cognitive performance
Participants completed three Serial subtraction tasks (Serial 3, 7 \& 17). Outcomes measured from all three of these tasks were the number correct entries and number of errors. The addition of the two outcomes can also provide a 'total' number of responses entered.
1 Hour
Whole body metabolism
Whole body energy expenditure was measured via indirect calorimetry and was reported in calories burned per minute (Kcal / min).
1 Hour
Fuel Oxidisation
Fuel oxidation was measured via indirect calorimetry and examined the rate of carbohydrate and fat oxidisation (both in grams per minute (g / min)).
1 Hour
Secondary Outcomes (1)
Pulmonary gases
1 Hour
Study Arms (3)
500 mg Resveratrol
EXPERIMENTAL250 mg Resveratrol
EXPERIMENTALPlacebo
PLACEBO COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Participants who were able to give informed consent.
You may not qualify if:
- Those who took hormonal contraception (e.g. the pill, coil, implant, etc.) were still allowed to participate in the current study.
- Participants who smoke.
- Participants below the age of 18 years or above 35 years at the time of giving consent to in role in the current study.
- Participants with Body Mass Index outside the range of 18-35 kg/m2.
- Participants with blood pressure greater than 140/90 HH/mg.
- Participants with a history of neurological, vascular or psychiatric illness (excluding depressive illness and anxiety).
- Participants with a current diagnosis of depression and / or anxiety.
- Participants with learning difficulties: dyslexia, dyscalculia or colour blindness.
- Participants with a visual impairment that cannot be corrected with glasses or contact lenses.
- Participants with frequent migraines that require medication (more than or equal to 1 per month).
- Participants with disorders of the blood.
- Participants with a heart disorder.
- Participants with diabetes.
- Participants with a respiratory disorder that requires regular medication (Note: asthma sufferers who only take their medication occasionally/as required were eligible for this study).
- Participants currently taking any prescription medications.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
April 9, 2018
First Posted
June 6, 2018
Study Start
May 7, 2015
Primary Completion
December 18, 2015
Study Completion
December 18, 2015
Last Updated
June 6, 2018
Record last verified: 2018-06