Chemicals in Green Tea Boost Product... 
Tony Isaacs
17 y
8,770
† Cross †
from Medical News Today 08-11-2007
http://www.medicalnewstoday.com/articles/79414.php?nfid=22293
See the note at the end of this article - DQ
Chemicals in Green Tea Boost Production Of Detox Enzymes, Rendering Cancerous Chemicals Harmless
Concentrated chemicals derived from green tea dramatically boosted production of a group of key detoxification enzymes in people with low levels of these beneficial proteins, according to researchers at Arizona Cancer Center.
These findings, published in the August issue of Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research, suggest that a green tea concentrate might help some people strengthen their metabolic defense against toxins capable of causing cancer.
In a study of 42 people, the concentrate composed of chemicals known as green tea catechins in amounts equal to that found in 8-16 cups of green tea boosted production of the enzymes, which belong to the glutathione S-transferase (GST) family, by as much as 80 percent in some participants.
GST enzymes are believed to be crucial to the body's defense against cancer-causing chemicals and other toxins, according to the study's lead investigator, H.-H. Sherry Chow, Ph.D., a research associate professor at the University of Arizona. They modify the cancer-causing molecules that would otherwise damage cellular DNA, thus rendering them inert.
"They actually convert known carcinogens to non-toxic chemicals, and studies have shown a correlation between deficient expression of these enzymes and increased risk of developing some cancers," Chow said.
"Expression of this enzyme varies dramatically in people due to genetic variation and environmental factors," Chow added. "Green tea catechins somehow increase gene expression of these enzymes, which can be an advantage to people with low levels to start with."
Green tea has long been of interest to researchers given studies that have shown populations in which it is often consumed, such as the Chinese and Japanese, generally have lower rates of cancer. To find out if green tea can protect against cancer, the NCI has sponsored a number of rigorous scientific studies testing capsules of the extract, Polyphenon E, that have been prepared in Japan to meet exact specifications. These pills contain epigallocatechin gallate (EGCG), a catechin known for its potent antioxidant activity, and are currently being tested against a variety of cancers in clinical trials.
This study was designed to see if green tea catechin concentrate had any effect on the levels of GST enzymes in healthy individuals research that could explain the tea's anti-cancer properties. Healthy volunteers were asked to abstain from consuming any tea or tea-related products for four weeks. At the end of this "washout period," blood was drawn and baseline GST enzyme levels were determined for each participant. Then, the volunteers were asked to take four Polyphenon E capsules, for a total of 800 milligrams of EGCG, each morning on an empty stomach for four weeks and to abstain from drinking tea or eating many cruciferous vegetables, which contain other beneficial chemicals. Another blood sample was taken after four weeks, and GST activity was determined.
Researchers found that use of Polyphenon E enhanced GST activity when data from all participants were included for analysis. But it had its most significant effect in volunteers whose baseline blood measurements showed low GST activity an 80 percent increase compared to baseline GST activity. Activity did not change in volunteers with medium GST expression, or in those with the highest levels, GST seemed to decrease slightly although researchers believe that decline was due to random variation.
"This is the first clinical study to show proof that chemicals in green tea can increase detoxification enzymes in humans," Chow said. "There may be other mechanism in play by which green tea may protect against cancer development, but this is a good place to start."
The NCI supported the study and researchers from NCI also participated in conducting the study.
Note: As pointed out by Aharleygyrl, regular green tea and other teas may have dangerous concentrations of flouride and aluminum. Perhaps a good source of safe green and black tea extracts would be this one from a link on Mercola.com
Body Ecology Diet's Green and Black Tea Extracts
Thanks Aharleygyrl!
DQ
---------------------------------
The mission of the American Association for Cancer Research is to prevent and cure cancer. Founded in 1907, AACR is the world's oldest and largest professional organization dedicated to advancing cancer research. The membership includes nearly 26,000 basic, translational, and clinical researchers; health care professionals; and cancer survivors and advocates in the United States and more than 70 other countries. AACR marshals the full spectrum of expertise from the cancer community to accelerate progress in the prevention, diagnosis and treatment of cancer through high-quality scientific and educational programs. It funds innovative, meritorious research grants. The AACR Annual Meeting attracts more than 17,000 participants who share the latest discoveries and developments in the field. Special Conferences throughout the year present novel data across a wide variety of topics in cancer research, treatment, and patient care. AACR publishes five major peer-reviewed journals: Cancer Research; Clinical Cancer Research; Molecular Cancer Therapeutics; Molecular Cancer Research; and Cancer Epidemiology, Biomarkers & Prevention. Its most recent publication, CR, is a magazine for cancer survivors, patient advocates, their families, physicians, and scientists. It provides a forum for sharing essential, evidence-based information and perspectives on progress in cancer research, survivorship, and advocacy.
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Philadelphia, PA 19106
United States
http://www.aacr.org
- No thanks, I have enough fluoride an... Aharleygyrl
17 y
6,457
MoreThis is a reply to # 939,612
Drinking tea can cause hypothyroidism, brittle bones and more...
http://curezone.com/blogs/m.asp?f=1184&i=26
Fluoride and aluminum in teas and tea-based beverages
http://curezone.com/blogs/m.asp?f=1184&i=142
- Thanks! Misleading headline Tony Isaacs
17 y
5,921
MoreThis is a reply to # 939,633Thanks - the headline supplied with the article is misleading. It SHOULD read "Chemicals in Green Tea" instead of "Green Tea". I will fix it and also put a disclaimer in.
I note that Mercola has some good non-floride caffeine free green and black tea extract link:
Body Ecology Diet's Green and Black Tea Extracts
Flouride and aluminum are indeed a bad duo!
DQ
- Re: Thanks! Misleading headline Johny Apple Bomb
17 y
5,708
More
- Re: Thanks! Misleading headline Tony Isaacs
17 y
5,872
This is a reply to # 939,733I don't know - it surely looks like there is a problem with flouride levels from the links in Aharleygyrl's post. Possibly aluminum too, or perhaps it is the combination of the two. My understanding is that aluminum is the most common mineral found in plants, but that the plant derived form may not be so bad.
I am wondering what to do with my two new packages of green tea and black tea!
DQ
- Re: The teas I like traderdrew
17 y
5,952
This is a reply to # 939,820I like organic silver needle white tea and certain forms of red tea. Silver needle doesn't have much taste to it so I add a small amount of another flavored white tea to it. I am able to do this because I use loose leaf tea. Organic silver needle has less fluoride and less caffeine. I would think it has less aluminum in it also because silver needle is picked from the new growth of the tree.
I belive it was Finallyfaith who posted that the fluorine in tea is organic and not to worry about it. I still have a problem resolving that. No offense to finallyfaith.
I self muscle test a lot of teas. Some test toxic to my system and some of them do not. Some green tea tests toxic to me and other batches of green tea do not.
- Re: The teas I like traderdrew
17 y
5,952
- Lipton Tea Aharleygyrl
17 y
7,871
This is a reply to # 939,733
I read a long time ago that dyes are added to tea and they don't have to list it on the label. Although some green teas, such as Lipton, do list blue no. 1 on their bottled teas. Plus, Lipton uses bleached tea bags, which leeches the chemical dioxin, a known carcinogen, into your tea. And, they also have aluminum staples.
COMMONLY USED ADULTERANTS IN TEA
TEA LEAVES - inferior quality tea leaves
- used tea leaves, coloured dried and mixed.
- Leaves other than tea leaves
- iron filings
- outer coat of black dals like urad whole, powdered and added
» Used tea leaves are colored, dried and mixed with fresh tea leaves
-Wet a sample of leaves, rub on bltting paper. Colour on blotting paper indicates adulteration.
»Iron filling in tea leaves
-Pass a magnet through the tea leaves. The iron fillings will cling to the magnet.
» Artificial dye in tea leaves
-Put tea leaves on moistened blotting paper.
Artificially coloured leaves will impart colour to blotting paper.http://business.fortunecity.com/fribourg/279/food.html
- Re: Thanks! Misleading headline Tony Isaacs
17 y
5,872
- Re: Thanks! Misleading headline Aharleygyrl
17 y
5,894
This is a reply to # 939,694thanks for that link, i am going to buy some. yerba mate has less fluoride than tea, but still has some. i believe it was .06 whatever per cup. they used to list it on their website but they do not anymore. i don't think they want people knowing ti has fluoride at all, and that is wrong.
- Yerba Mate Tony Isaacs
17 y
6,418
This is a reply to # 939,844You don't have to sell me on Yerba Mate - I think it is an immune boosting, disease fighting and anti-oxidizing wonder!
Yerba Mate - South America's Health Drink
Here is a good site I found with lots of varieties:
http://www.yerbamate.com
DQ
- Yerba Mate Fluoride Content Aharleygyrl
17 y
7,491
This is a reply to # 939,928
By making an 8 oz cup of tea with one of our 3 gram tea bags, you get .032 milligrams of flouride, about 25% of the flouride found in green tea.
that is from the company:
- Re: ?? - Yerba Mate Fluoride Content rabbitears
17 y
6,762
This is a reply to # 940,911Hi A!
Silly question, but where did you see that -- what page? (I like EcoTeas but I've always used the bulk.)
This is from the tea bag page:
http://www.worldpantry.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=435392&p...
Packed with antioxidants, rich in B vitamins and minerals, yerba maté is nature's original energy tonic. This box of 24 individually wrapped tea bags makes it easy and convenient to elevate your energy, increase your metabolism, and enhance your mood.
Discover why EcoTeas Unsmoked Yerba Maté is becoming the favorite choice of mate fans from coast to coast. We source our organic yerba mate from a small family farm in northeastern Argentina. Our farmers have developed a unique smoke-free drying process to achieve a smooth, clean flavor. They employ sustainable farming techniques to ensure a biologically-rich, economically-productive future for their family and their community.
Preparation
Hot:
First, moisten the tea bag with cool water. Steep in hot water (never boiling) water for 3-5 minutes. Remove tea bag and enjoy.
Iced:
Steep directly in cold water for 10+ minutes. Add ice, citrus and/or a sweetener.
Ingredients
100% Organic Yerba Maté Leaf (Ilex Paraguariensis- Re: ?? - Yerba Mate Fluoride Content Larryb
17 y
8,945
This is a reply to # 941,589I drink Yerba Mate every morning instead of coffee and have tried most brands. From what I've seen, Mate really needs to be smoked. The Ecco Tea is short on flavor and way to jacked up on the stimulant side giving me headaches. Of all I've tried, the Nativa brand is the best all round. Best for its effect, best tasting, clean, and reasonably priced. I have nothing to do with the company except as a customer but have sampled Mate from all over the world.
I was excited when I found out about the Eco brand and its alleged purity. But I guess there's a reason they've been smoking Mate for generations. The Eco Teas were really a disappointment. I have two bags of the stuff still in my pantry from 2 years ago. - Re: ?? - Yerba Mate Fluoride Content Aharleygyrl
17 y
7,418
This is a reply to # 941,589
it used to be listed on this site, can't remember the amount it said. it seemed it had like 1/3 the amount as tea: http://www.guayaki.com/index.php?p=faq, but they don't have it anymore. for that info, i contacted the company. www.EcoTeas.com
Torrie
- Re: ?? - Yerba Mate Fluoride Content Larryb
17 y
8,945
- Re: ?? - Yerba Mate Fluoride Content rabbitears
17 y
6,762
- Yerba Mate Fluoride Content Aharleygyrl
17 y
7,491
- Yerba Mate Tony Isaacs
17 y
6,418
- Re: Thanks! Misleading headline Johny Apple Bomb
17 y
5,708
- Thanks! Misleading headline Tony Isaacs
17 y
5,921
- No thanks, I have enough fluoride an... Aharleygyrl
17 y
6,457
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