Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Concord grape juice improved memory and neuro-motor skills in animal study

19.12.2003


Grape juice joins blueberries as possible anti-aging ’brain food’



Consuming Concord grape juice significantly improved laboratory animals’ short-term memory in a water maze test as well as their neuro-motor skills in certain of the coordination, balance and strength tests, according to preliminary research presented at the 1st International Conference on Polyphenols and Health recently held in Vichy, France.

"In the study we subjected 45 senescent rats-meaning they were mature animals approaching the end of their expected life spans-to a range of tests and challenges that are commonly accepted methods of measuring changes in short-term memory and neuro-motor skills," says James A. Joseph, Ph.D., Chief, Neurosciences Laboratory, USDA Human Nutrition Research Center on Aging and lead researcher in the study. "Concord grape juice appeared to reduce or reverse the loss of sensitivity of muscarinic receptors, thus enhancing cognitive and some motor skills in the test animals. In many of the tests we saw significant improvements or trends toward improvement."


The memory test was the Morris water maze, an age-sensitive challenge that requires animals to use spatial learning to find a platform submerged 2 cm below the surface of a pool of water. Rats fed a 10% solution of Concord grape juice found the platform in roughly 20% less time than the control group. Other tests measured the animals’ ability to balance on a horizontal stationary rod; a rotating, slowly accelerating rod; and various sized planks, and their ability to hold onto a suspended wire and an inclined wire screen. Some of those tests saw improvements in either or both of the group consuming a 10% solution of Concord grape juice and the group consuming a 50% solution.

"The Concord grape juice findings are not surprising," explains Joseph. "We have seen similar effects in the work we’ve done in blueberries."

The researchers point to several factors as potential mechanisms of action, including increased dopamine production and a potent overall antioxidant effect. According to previously published USDA studies, Concord grape juice has the highest total antioxidants of any fruits, vegetables or juices tested.

"As our population ages, we are continually looking for ways to maintain our mental and physical skills," notes Joseph. "While these laboratory animal studies are certainly preliminary and much more work needs to be done, we know that consuming high levels of natural dietary antioxidants is a good thing from a number of perspectives. And it appears that drinking Concord grape juice has the potential to help retard the mental and physical declines of aging."


The study was funded by the USDA Agricultural Research Service, the Michigan Department of Agriculture and a grant from Welch Foods, Inc.

Julie McQuain | EurekAlert!

More articles from Studies and Analyses:

nachricht Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>