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Easy way to protect heart - sip black tea
Wednesday January 09, 2013 02:30:06 PM,
IANS
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Sydney: Quercetin, a
flavonoid abundant in black tea, has shown promise in protecting
blood vessels against oxidative damage and lowering cardiovascular
disease (CVD) risk, said researchers who based their studies on
mice.
Flavonoids are common plant pigment compounds that act as
antioxidants, enhance the effects of vitamin C, and protect
connective tissue around capillaries (blood vessels).
Natalie Ward, research fellow from the University of Western
Australia (UWA) School of Medicine, and pharmacology professorial
fellow Kevin Croft said although their preliminary study is based
on cells and isolated mouse vessels, "our findings have suggested
that quercetin is able to protect vessels against oxidant-induced
damage."
The supervisors say there is evidence to suggest that other
dietary flavonoids may reduce blood pressure as well as bring down
the development of atherosclerosis (plaque build-up in arteries),
the journal Biochemical Pharmacology reports.
"Future studies looking at the effect of flavonoids on CVD should
consider using combinations of flavonoids, as well as dietary
sources of flavonoids, rather than supplementation with pure
flavonoids," said Ward and Croft, according to an UWA statement.
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