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#89c - 9/08/08
Will EGCG of green tea help inhibit breast cancer cell growth?
#89b - 9/08/08
Will mate tea protect unsaturated fatty acids from oxidation?
#89a - 9/08/08
Will oolong tea contain as much EGCG as green tea?
#88c - 9/01/08
Is green tea protective against cardiovascular disease?
#88b - 9/01/08
Will green tea manufactured from mature leaves contain more EGCG than tea manufactured from young leaves? How much EGCG is in partially fermented tea?
#88a - 9/01/08
Will green tea reduce LDL oxidability and improve vascular function in women?
#87c - 8/25/08
Will aluminum migrate into the tea marketed in aluminum cans?
#87b - 8/25/08
Can green tea reduce free iron-caused oxidative stress in the circulating blood?
#87a - 8/25/08
Will ECg of green tea reduce atherosclerosis-related foam cell formation?
#86c - 8/18/08
Is green tea more protective against cardiovascular disease in women than in men?
#86b - 8/18/08
Will tea improve attention task performance better than coffee?
#86a - 8/18/08
Will tea reduce the incidence of diabetes?
#85b - 8/11/08
Is tea protective against age-associated cognitive dysfunction in humans?
#85a - 8/11/08
Are tea polyphenols protective against acrylamide?
#84b - 8/04/08
Is topically applied green tea extract protective against UV light skin damage?
#84a - 8/04/08
Is caffeine protective to the fetus through the placenta?
#83b - 7/28/08
Is green tea EGCG protective against endometriosis?
#83a - 7/28/08
Is EGCG of green tea protective against pulmonary fibrosis?
#82c - 7/21/08
Will tea reduce folic acid bioavailability?
#82b - 7/21/08
Will green tea polyphenols, Vitamin E and Vitamin C work synertistically as antioxidants?
#82a - 7/21/08
Are green tea polyphenols protective against radiation damage?
#81c - 7/14/08
Will Pu-erh tea help lower blood cholesterol levels?
#81b - 7/14/08
Will green tea catechins make chemotherapeutic agents more effective?
#81a - 7/14/08
Is green tea EGCG an effective prostate cancer inhibitor?
#80c - 7/07/08
Is green tea effective against bone loss?
#80b - 7/07/08
Will green tea foster endothelial cell (artery lining) health?
#80a - 7/07/08
Is green tea ointment effective against anogenital warts?
#79b - 6/30/08
Is green tea EGCG prophylactic for Alzheimer's disease?
#79a - 6/30/08
Will green tea reduce obesity?
#78b - 6/23/08
Is green tea protective against lung cancer?
#78a - 6/23/08
Will green tea lower blood cholesterol levels?
#77c - 6/16/08
Can we easily moniter pesticide residues in tea before marketing?
#77b - 6/16/08
Is black tea an effective anti-arthritis agent?
#77a - 6/16/08
Will certain foods including grapes facilitate EGCG absorption?
#76N - 6/9/08
Is theanine a brain cell protective agent?
#76 - 6/9/08
Will theanine protect the brain from environmental toxins?
#75N - 6/2/08
Are black tea theaflavins protective against breast cancer?
#75 - 6/2/08
Green tea and soy: will they combine to lower cholesterol levels?
#74N - 5/26/08
Will green tea EGCG protect against Alzheimer's disease?
#74 - 5/26/08
What fungi are needed to manufacture Puer tea?
#73N - 5/19/08
Will theanine both suppress appetite and improve memory?
#73 - 5/19/08
Are green tea polyphenols cytostatic agents?
#72 - 5/12/08
Will mate tea reduce lung inflammation and oxidation in cigarette smokers?
#71N - 5/5/08
Will both drinking tea and cigarette smoking deter Parkinson's disease?
#71 - 5/5/08
Will green tea EGCG deter lung cancer metastasis?
#70N - 4/28/08
Will EGCG deter breast cancer by inducing antioxidant enzymes in breast cells?
#70 - 4/28/08
Will both cinnamon and green tea help regulate immune and inflammation function?
#69 - 4/21/08
Will green tea help prevent ovarian cancer?
#68F - 4/17/08
Will black tea paired with vegetables and fruits protect the diabetic from hypertension?
#68N - 4/14/08
Will Vitamin C counterbalance the iron-restricting effects of tea?
#68 - 4/14/08
Will tea help fight worm infections?
#67N - 4/7/08
Will drinking green tea reduce mouth odors?
#67 - 4/7/08
Will green tea reduce oxidative stress related to benzene toxicity?
#66N - 3/31/08
Will green tea reduce alcohol-induced liver toxicity?
#66 - 3/31/08
Will black tea induce cancer protective phase II enzymes?
#65F - 3/24/08
Is caffeine both a stimulant and a prooxidant?
#65N - 3/24/08
If arsenic and cadmium are in the soil will they be in our tea?
#65 - 3/24/08
Will green tea catechins improve levels of fatness, blood pressure and cholesterol in children?
#64F - 3/19/08
Will green tea catechins help prevent Alzheimer's disease?
#64N - 3/17/08
Do loose leaf brewed teas contain less fluoride and aluminum than brewed bagged teas?
#64 - 3/17/08
Will oolong tea help lower blood pressure?
#63N - 3/10/08
Do green tea polyphenols serve as cell regulatory molecules?
#63 - 3/10/08
Will green tea inhibit Hepatitis B infection?
#62 - 3/3/08
Are unhealthful metallic elements present in tea?
#61N - 2/25/08
Are pesticides in tea?
#61 - 2/25/08
How does theanine work in the brain?
#60 - 2/18/08
Does caffeine consumption increase the risk of glaucoma?
#59N - 2/11/08
Will L-theanine of tea help fight colds and flu?
#59 - 2/11/08
Will black tea theaflavins sometimes reduce oxidatative stress and at other times induce oxidative stress?
#58N - 2/4/08
Will green tea EGCG help reduce cardiac and skeletal damage in acidic conditions?
#58 - 2/4/08
Will green tea strictinin stimulate immune system activity?
#57N - 1/28/08
Will black tea enhance the effectiveness of certain antibiotics?
#57 - 1/28/08
Is green tea extract effective against genital warts?
#56 - 1/21/08
Can drinking excessive amounts of instant tea cause fluorosis?
#55 - 1/14/08
Will green tea improve insulin sensitivity in obesity?
#54 - 1/7/08
Will tea reduce iron availability for red blood cell formation?
#53 - 12/31/07
Will EGCG of green tea inhibit breast cancer growth?
#52 - 12/24/07
Will drinking tea reduce carotid artery plaque in women?
#51 - 12/17/07
Is yerba mate an effective health tea?
#50 - 12/10/07
Is green tea EGCG protective against cervical cancer when combined with retinoic acid?
#49 - 12/3/07
Is black tea protective against colorectal cancer?
#48 - 11/26/07
How does the combined theanine and caffeine of tea affect cognition?
#47 - 11/19/07
Will green tea EGCG facilitate prostate cancer cell death?
#46 - 11/12/07
What happens to green tea polyphenols in our bodies?
#45 - 11/5/07
Is EGCG protective against parkinson's disease?
#44 - 10/29/07
Will green tea catechins promote insulin secretion in diabetics?
#43 - 10/22/07
Will EGCG of green tea improve islet transplants for diabetics?
#42 - 10/15/07
Will Theogallin and L-theanine alter electrical activity in the brain?
#41 - 10/08/07
Is EGCG an effective treatment for her2-positive breast cancer?
#40 - 10/01/07
Will both green and black teas inhibit prostate cancer cell growth?
#39 - 9/24/07
Can green tea advance pathogenic bacterial growth in our intestines?
#38 - 9/17/07
Can black tea help prevent weight gain?
#37 - 9/10/07
Can green tea help lower our blood sugar levels?
#36 - 9/3/07
Can green tea serve as a cell regulatory as well as an antioxidizing agent?
#35 - 8/27/07
Can oolong tea serve as a cell regulatory as well as an antioxidizing agent?
#34 - 8/20/07
Will steeping methods determine the amount of catechins and caffeine in your teacup?
#33 - 8/13/07
How does yellow tea compare to other camellia sinensis teas?
#32 - 8/6/07
Can we differentiate between white, green, oolong, black and pu-erh teas based on their amino acid content?
#31 - 7/30/07
Is rooibos tea as effective an antimutagenic agent as green tea?
#30 - 7/23/07
Is green tea simply an antioxidant or can it also regulate genetic expression?
#29 - 7/16/07
Will green tea help protect us from absorption of environmental pollutants into our bloodstreams?
#28 - 7/9/07
Will green tea promote a healthier balance between blood HDL/LDL cholesterol?
#27 - 7/2/07
Are green tea polyphenols cardioprotective? If so, how?
#26 - 6/25/07
Will EGCG help protect cells from becoming cancerous?
#25 - 6/18/07
What do we know about the potential anticarcinogenic qualities of EGCG?
#24 - 6/11/07
Will infusion time or adding milk alter the health benefits of black tea?
#23 - 6/4/07
Will mate tea benefit Parkinson's patients?
#22 - 5/28/07
Will green tea help neutralize troublesome free iron ions in the circulating blood?
#21 - 5/21/07
Will black tea theaflavins trigger apoptosis in prostate cancer cells?
#20 - 5/14/07
Will green tea polyphenols sometimes function as pro-oxidants?
#19 - 5/7/07
Will the flavonoids of tea help prevent ovarian cancer?
#18 - 4/30/07
Will green tea help prevent bone loss?
#17 - 4/23/07
Will caffeine reduce the risk of Parkinson's disease?
#16 - 4/16/07
Are black tea polyphenols protective against breast cancer?
#15 - 4/9/07
Can quantum physics help explain how green tea catechins work as antioxidants?
#14 - 4/2/07
Will mate tea cause bladder cancer?
#13 - 3/26/07
Will green tea help prevent stroke?
#12 - 3/19/07
Are green and black teas both anticarcinogenic?
#11 - 3/12/07
Will theanine alter alpha wave activity?
#10 - 3/5/07
Will green tea help ward off brain senescence?
#9 - 2/ 26/07
Will rooibos tea promote bronchodilation?
#8 - 2/19/07
Will green tea serve as an antiinflammatory agent?
#7 - 2/12/07
Will green tea help coax cancer cells to self-destruct?
#6 - 2/5/07
Will rooibos tea help stimulate antibody production?
#5 - 1/29/07
Will milk added to black tea reduce its effectiveness as a cardioprotective agent?
#4 - 1/22/07
Will green tea help slow collagen breakdown in the body?
#3 - 1/15/07
Will green tea help reduce oxidative stress?
#2 - 1/8/07
Will black tea help reduce cardiac arrhythmias after a heart attack?
#1 - 1/1/07
Will green tea help prevent gastric ulcer?



6-30-2008 Dr. Paul's Tea & Health Update #79b
IS GREEN TEA EGCG PROPHYLACTIC FOR ALZHEIMER'S DISEASE?

   Numerous studies suggest that beta-amyloid deposits in the brain are directly related to cognitive impairment associated with Alzheimer's disease. Hypothetically, any agent reducing beta-amyloid (amyloid beta, Abeta) deposits would be prophylactic for Alzheimer's disease.
   Note: "Tau" is a neuron protein important for the assembly and stability of neuronal microtubules. It changes to an abnormal form and becomes a key component of neurofibrillary tangles and beta-amyloid deposits associated with Alzheimer's disease.
   Note: "transgenic mice" contain additional DNA genetic material in every cell. Genes are added artificially in order to form a model for a human disease such as Alzheimer's disease.

Green tea epigallocatechin-3-gallate (EGCG) reduces beta-amyloid mediated cognitive impairment and modulates tau pathology in Alzheimer transgenic mice.
Brain Res. 2008 Jun 12;1214:177-87. Rezai-Zadeh K, et.al.
Click Here for PubMed Abstract of Study

   The study found that that EGCG administered orally in drinking water (50 mg/kg) reduces Abeta deposit formation in this animal model. The investigators conclude:

   "Taken together, these data further the notion of EGCG dietary supplementation as a potentially safe and effective prophylaxis for Alzheimer's disease."
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