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Grape Juice May Boost Memory
In Elderly According to New Study
More Important News About How Antioxidants and
Phytochemicals Support Cognitive and Mental Function
Daily consumption of Concord grape juice may enhance memory
in older people with mild impairment in the brain function, says a
new study conducted by scientists from the University of Cincinnati
Academic Health Center
Improved verbal learning and enhanced verbal and spatial recall
were observed following a 12 week randomised, placebo-controlled,
double-blind trial with Concord grape juice.
The researchers from the University of Cincinnati Academic Health
Center, and the USDA Human Nutrition Research Center on Aging
and Tufts University report their findings in the British Journal of
Nutrition.
The researchers are careful to note that results from their small study,
only 12 older adults with memory decline but not dementia were
studied. It should “establish a basis for more comprehensive
investigations to evaluate potential benefit and assess mechanisms
of action.”
Concord grape juice is a rich source of polyphenols, potent
antioxidants that act to “mop up” harmful reactive oxygen species
that have been identified as key to the aging process. Previous
research has linked polyphenols, such as catechins, epicatechins,
and anthocyanins to protecting against various cancers and heart
disease.
A previous study by Tufts researchers reported that Concord grape
juice appeared to reverse the course of neuronal and behavioural
aging in laboratory mice (Nutrition, 2006, Vol. 22, pp. 295-302).
The new study reports similar findings in aging humans.
“We observed significant improvement in a measure of verbal
learning and non-significant enhancement of verbal and spatial
recall,” reported the team of scientists.
“These preliminary findings suggest that supplementation with
Concord grape juice may enhance cognitive function for older
adults with early memory decline,” they concluded.
Source: British Journal of Nutrition
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