LONDON, May 11, 2010 /PRNewswire/ -- The subject of extensive studies across the world, Resveratrol is proving to be a major talking point in the scientific community. And as evidence comes to light of the continuing beneficial effects of this compound, a further study by the University of Northumbria in the UK has confirmed what many scientists already believe to be the case - that Resveratrol could have a significant impact on the cognitive processes of the human brain.
The double-blind, peer-reviewed study was recently published in the American Journal of Clinical Nutrition and concludes that a relatively small dose of the compound can modulate cerebral blood flow variables and actually increase blood flow during task performance. In the study, 22 healthy adults received either a placebo or two doses (measured at 250mg and 500mg) of trans-Resveratrol in counterbalanced order on separate days. After a 45-minute resting absorption period, they then carried out a selection of cognitive tasks designed to activate the frontal cortex of the brain for 36 minutes. The levels of cerebral blood flow and hemodynamics were measured and indexed, calculating the concentration changes in oxygenated and deoxygenated haemoglobin present in the frontal cortex throughout the post-treatment period through the use of near-infrared spectroscopy.
The results were remarkable. The study showed that subjects taking the
trans-Resveratrol supplement demonstrated an increase in cerebral blood flow
during the task performances. The increase in deoxyhaemoglobin after both
doses suggested that there was substantially enhanced oxygen extraction
throughout the process. While cognitive function was not affected, the
results do open the doors for further investigation as to the longer
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