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-> In the News
Tefila
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Tue, Sep 20 2005, 11:12 pm
Chemical in green tea may fight Alzheimer’s
Compound appears to decrease production of brain-clogging plaques
• Green tea's hot
Updated: 6:49 p.m. ET Sept. 20, 2005
WASHINGTON - An ingredient in green tea that researchers think might fight cancer may also protect the brain from the memory-destroying Alzheimer’s disease, a study released Tuesday said.
Scientists injected mice with an antioxidant from green tea called epigallocatechin-3-gallate (EGCG) and said it decreased production of beta-amyloid, a protein that forms the plaques that clog the brains of Alzheimer’s victims.
Several months of injections reduced plaque formation by as much as 54 percent, researchers from the University of South Florida wrote in the Journal of Neuroscience. The mice had been genetically programmed to develop an Alzheimer’s-like disease.
Alzheimer’s is a progressive disorder that causes memory loss and afflicts an estimated 4.5 million people in the United States and millions more globally.
Drinking ordinary green tea may not lead to the same plaque reduction seen in the study because other ingredients in the beverage appear to block EGCG’s benefits, said Dr. Jun Tan, the study’s senior author and director of the neuroimmunology laboratory at the Silver Child Development Center in the University of South Florida’s psychiatry department.
Supplement pills containing EGCG might help, he said. Scientists are also trying to develop a tea with a high concentration of EGCG that could offer health benefits.
Other studies have shown EGCG may prevent certain cancers and could block the spread of the HIV virus that causes AIDS.
Humans would probably need 1,500 to 1,600 milligrams per day of EGCG to get the amount that helped mice in the Alzheimer’s study, Tan said.
Researchers have tested the safety of those doses in people and found no major side effects, he said.
The next step for researchers is to test an oral form of EGCG in mice and see if it protects the animals’ memory, he said. “If those studies show clear cognitive benefits, we believe (human) trials of EGCG to treat Alzheimer’s disease would be warranted,” Tan said.
The study was funded by the University of South Florida College of Medicine Faculty Start-Up Funds, the Johnnie B. Byrd Sr. Alzheimer’s Center & Research Institute, the National Institute of Neurological Disorders and Stroke and the Alzheimer’s Association.
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JEWISHMAMA
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Wed, Sep 21 2005, 6:38 am
thank you as I have recently heard that green tea speeds up the metabolism and have started drinking it.
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Rivka
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Wed, Sep 21 2005, 6:40 pm
Has it worked?? I used to drink green tea and it did nothing for my metabollism...infact my metabollism is probably better now than when I drank it.
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Tefila
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Wed, Feb 14 2007, 9:42 pm
I hope this is true b/c I am soncuming green tea like it's going out of style
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Ozmom
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Wed, Feb 14 2007, 10:14 pm
who knows, maybe its also the caffeine
I once read an article in the readers digest that caffeine is good to prevent alzheimers and parkinsons
but then again I never know what to believe from the readers digest
I'm still trying to get myself OFF caffein though.
green tea is supposed to be good for a variety of things but speaking of alzheimers, I also read an article that studies show that more patients with alzheimers spent a certain percentage of their time watching TV between a certain age bracket and fewer patients did more reading at that age bracket.
in other words, reading helped to strengthen against alzheimers in the future, and TV probably didn't do much to help.
this does not mean to say that every patient with alzheimers was a TV watcher.
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queen
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Thu, Feb 15 2007, 7:18 pm
I've heard you must drink 16 cups of green tea a day to get the benefits from it.
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Tefila
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Sun, Feb 18 2007, 12:54 am
Queen my dear, really where did u hear that from
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