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Old 10-08-2007, 12:25 PM
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Default Tea May Promote Bone Density


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Devine and co-workers report that total bone mineral density (BMD) was 2.8 per cent higher in tea drinkers, compared to non-tea drinkers. Over the course of four years, the researchers add that tea drinkers lost an average of 1.6 per cent of their total hip BMD, while non-tea drinkers lost significantly more (4.0 per cent).

...

"Tea-derived flavonoids and lignans may be important in maintaining BMD, particularly in older women, who have low concentrations of endogenous oestrogen," wrote Devine. "A recent review suggests that flavonoids from green tea may be associated with increases in BMD via a potent stimulatory effect on osteoblast function."

"A major tea flavonoid, (-)-epigallocatechin-3-gallate, has been shown to increase the expressions of osteogenic genes, elevate bone marker activity, and augment mineralization in a murine bone marrow mesenchymal stem cell line.

"These findings suggest a stimulatory effect of the compound as a possible mechanism for the associated higher BMD seen in tea drinkers," she said.
http://www.nutraingredients.com/news...s-osteoporosis
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