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Curry may keep elderly minds sharp
New York -
A diet containing curry may help protect the aging brain,
according a study of elderly Asians in which increased curry
consumption was associated with better cognitive performance on
standard tests.
Curcumin,
found in the curry spice turmeric, possesses potent antioxidant and
anti-inflammatory properties.
It's known that long-term users of
anti-inflammatory drugs have a reduced risk of developing Alzheimer's
disease, although these agents can have harmful effects in the
stomach, liver and kidney, limiting their use in the elderly.
Antioxidants, such as vitamin E, have
been shown to protect neurons in lab experiments but have had limited
success in alleviating cognitive decline in patients with
mild-to-moderate dementia.
In their study, Dr. Tze-Pin Ng from
National University of Singapore and colleagues compared scores on the
Mini-Mental State Exam (MMSE) for three categories of regular curry
consumption in 1,010 nondemented Asians who were between 60 and 93
years old in 2003.
Most of the study subjects consumed
curry at least occasionally (once every 6 months), 43 percent ate
curry at least often or very often (between monthly and daily) while
16 percent said they never or rarely ate curry.
After taking into account factors
that could impact test results, they found that people who consumed
curry "occasionally" and "often or very often" had significantly
better MMSE scores than did those who "never or rarely" consumed
curry.
"Even with the low and moderate
levels of curry consumption reported by the respondents, better
cognitive performance was observed," Ng and colleagues report.]
These results, they note, provide
"the first epidemiologic evidence supporting a link between curry
consumption and cognitive performance that has been suggested by a
large volume of earlier experimental evidence."
Curry is used widely by people in
India and "interestingly," the prevalence of Alzheimer's disease among
India's elderly ranks is fourfold less than that seen in the United
States.
"In view of its efficacy and
remarkably low toxicity," curry shows promise for the prevention of
Alzheimer's disease, the researchers conclude. --
Reuters Limited
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