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Israeli researchers report that the pomegranate, a fruit mainly
grown in hot dry regions, could possibly be helpful in combatting
breast cancer.
Technion-Israel
Institute of Technology researchers said their studies show that
pomegranate juice can be toxic to most estrogen-dependent breast
cancer cells, while leaving normal breast cells largely unaffected.
"Pomegranates
seem to replace the estrogen often prescribed to protect postmenopausal
women against heart disease and osteoporosis, while selectively
destroying estrogen-dependent cancer cells," said Dr. Ephraim
Lansky, who headed the studies.
In one study,
Lansky said laboratory-grown breast cancer cells were treated
for three days with pomegranate seed oil. The researchers observed
apoptosis in 37 to 56 percent of the cancer cells, depending on
the dose of oil applied.
In a second
study, both normal and cancerous breast cells were exposed to
pomegranate wine and pomegranate peel extracts, which contain
polyphenols (powerful antioxidants). The vast majority of the
normal cells remained unaffected by the two pomegranate derivatives.
But more than 75 percent of the estrogen-dependent cancer cells,
and approximately half of the non-estrogen dependent cancer cells
were destroyed by exposure to these same pomegranate products.
Dr. Lajos
Pusztai, an assistant professor who studies breast cancer at the
M.D. Anderson Cancer Center in Houston, said Lansky's study "provides
a potential new avenue to develop anti-cancer drugs from a natural
compound."
Other
Sources: Technicon-Israel
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