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Community Information Starts
Grapes -
Could eating grapes help fight high blood pressure
related to a salty diet? And could grapes calm other
factors that are also related to heart diseases such as
heart failure? A new University of Michigan
Cardiovascular Centre study suggests so.
The new study, published in the October issue of the Journal
of Gerontology: Biological Sciences, gives tantalizing clues
to the potential of grapes in reducing cardiovascular risk.
The effect is thought to be due to the high level of
phytochemicals - naturally occurring antioxidants - that
grapes contain.
The study was performed in laboratory rats. The researchers
noted while these study results are extremely encouraging,
more research needs to be done.
"Though it's true that your mom told you to eat all
your fruits and your vegetables, and that we are
learning a lot about what fruits, including grapes, can do
in this particular model of hypertension and heart
failure, we would not directly tell patients to throw all
their pills away and just eat grapes," says Bolling.
In the meantime, Bolling says, people who want to lower
their blood pressure, reduce the risk of heart failure,
or help their weakened hearts retain as much pumping power
as possible should follow tried-and-true advice: Cut
down on the amount of salt you get through your food and
drink.
"There is, as we now know, a great variability, perhaps
genetic even, in sensitivity to salt and causing
hypertension," he says. "Some people are very sensitive to
salt intake, some are only moderately so, and there are
perhaps some people who are salt resistant. But in general
we say stay away from excess salt."
He notes that the popular DASH diet, which is low in
salt and high in fruits and vegetables, has been
proven to reduce mild high blood pressure without
medication. The dose of whole table grape powder that was
consumed in the study was roughly equivalent to a person
eating nine human-sized servings of grapes a day. Currently,
five to nine servings of fruits and vegetables are
recommended as part of the DASH diet.
Reference: Journal of
Gerontology: Biological Sciences, 2008, Vol. 63A, No. 10,
October 2008
Sleep - People with even minimally symptomatic
obstructive sleep apnea (OSA) may be at increased risk for
cardiovascular disease because of impaired endothelial
function and increased arterial stiffness, according to a
study from the Oxford Centre for Respiratory Medicine.
"It was previously known that people with OSA severe enough
to affect their daytime alertness and manifest in other ways
are at increased risk of cardiovascular disease, but this
finding suggests that many more people—some of whom may be
completely unaware that they even have OSA—are at risk than
previously thought," said lead author of the study, Malcolm
Kohler, M.D.
Over 50% of
People With High Blood Pressure Unaware They Have
Condition
More than half of people diagnosed with high blood pressure
do not have it under control and many more go undiagnosed,
according to research carried out at the University of
Warwick.
Professor Franco Cappuccio from Warwick Medical School at
the University of Warwick led the only UK team to
participate in a European study examining awareness,
treatment and control of high blood pressure, or
hypertension. Hypertension is an important cause of serious
diseases such as heart attacks and strokes.
The IMMIDIET study is
published in the Journal of Hypertension. 12 Nov 08
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