What makes us different? Read our Declaration of Journalistic Independence Home | About Natural News | Contact Us | Write for Natural News
Search our 25,000 free articles and special reports
green tea

Green Tea Shown to Reduce Risk of Ovarian and Colorectal Cancers

Tuesday, May 06, 2008 by: Barbara L. Minton (see all articles by this author)
| Key concepts: green tea, cancer and coffee

Want stories like this e-mailed to you? Click here for free email alerts

Email this article to a friend Printable Version
(NaturalNews) Green tea has rapidly entered the American market as a claimed cure and preventative for almost everything that ails mankind. It seems too good to be true, but now we are finding out that it is true. Recent studies reveal green tea's benefits as an antioxidant, promoter of glucose tolerance, protector of the liver and detoxification system, and benefactor of the cardiovascular system. Two recent studies show that green tea is also a powerful agent in the prevention and cure of cancers.

Studies and Results

The March, 2008 issue of Cancer Epidemiology Biomarkers and Prevention, contains a study from the Fred Hutchinson Cancer Research Center in Seattle. In a population based study in Washington state, 781 women with epithelial ovarian cancer diagnosed between 2002 and 2005, and 1,263 controls completed self-administered questionnaires detailing consumption of caffeinated and non-caffeinated coffee, teas, and colas. They also completed in-person interviews regarding reproductive and hormonal exposures.

Researchers assessed risk associated with coffee, tea, and cola drinking and with total caffeine consumption using logistic regression to calculate odds ratios and confidence intervals. Results indicate that neither caffeinated nor decaffeinated coffees were associated with ovarian cancer risk. They also observed no association of total caffeine with risk using a combined index that summed intake from coffee, tea and carbonated soft drinks.

Among teas, neither herbal/decaffeinated nor black teas were associated with risk. However, women who reported drinking green teas had a 54% reduction in risk of ovarian cancer. Associations of green tea with risk were similar when invasive and borderline cases were considered separately and when Asian women were excluded from analysis.

In the second study from Cancer Biology and Therapy, researchers from the Fourth Military Medical University in Xi’an China, reported progress in identifying the underlying mechanism by which green tea possesses therapeutic cancer effects through induction of apoptosis (programmed cell death) in colorectal cancer. Two different lines of colorectal cancer cells were treated with different concentrations of green tea, which led to repression of cell proliferation and induction of apoptosis in both cell lines.

The researchers concluded that the p-53 up-regulated modulator gene plays a critical role in green tea induced apoptosis pathways in colorectal cancer cells. Their demonstration of this effect may be useful in the therapeutic target selection for p53 deficient colorectal cancer.

Additional Implications

The results of these studies suggest that green tea may also be a factor for inducing apoptosis in breast cells and endometrial cells, thereby acting as both a preventative and a factor in the cure for these cancers.

A further implication for the first study may be drawn from its conclusion that the administration of caffeine containing coffee, tea, and colas yielded no association with risk for ovarian cancers.

About Green Tea

According to Phyllis and James Balch in their book Prescription for Nutritional Healing, green tea contains polyphenols, including phytochemicals with antioxidant, antibacterial, antiviral, and other health enhancing properties. Epigalloacatechin gallate (EGCG) is a particular type of polyphenol in green tea that has shown in tests to be able to penetrate the body’s cells and shield DNA from the potent free radical, hydrogen peroxide.

In addition to protecting against cancers, green tea lowers cholesterol levels, and reduces the clotting tendency of blood. It shows promise as a weight-loss aid that can promote the burning of fat and the regulation of insulin levels and blood sugar.

Green tea is simply the unprocessed leaves of the tea plant, unlike black tea which is fermented. During processing, much of the polyphenols of black tea are lost.

In addition to brewing and drinking green tea, there are green tea supplements available. Some of these contain the whole plant, while others contain extracts. Whole plant supplements are usually preferable because they are backed by the integrity of the whole plant. Many green tea supplements are standardized to provide a quantifiable amount of EGCG, viewed as its most beneficial component.

About the author

Barbara is a school psychologist, a published author in the area of personal finance, a breast cancer survivor using "alternative" treatments, a born existentialist, and a student of nature and all things natural.


###

Related Articles

New herbal supplement product uses green tea and cinnamon for controlling diabetes

Consumption of green tea associated with reduced mortality in Japanese adults (press release)

Green tea chemical shows protective effect against Huntington's disease

Coca-Cola jumps on green tea bandwagon, launches Enviga beverage with negative calorie claims

Green tea found to significantly reduce risk of death, heart disease

Additional Resources:

green tea
cancer
coffee

Take Action: Support NaturalNews.com

Email this article to a friend

Share this article on: NewsVine | digg | del.icio.us

Permalink to this article: http://www.NaturalNews.com/023174.html

Reprinting this article: Non-commercial OK, cite NaturalNews.com with clickable link.

Receive our Natural Health Newsletter for FREE

Subscribe now (it's free!) to win. We randomly choose a subscriber each month to send $100 in eco-home products or a RealGoods.com gift certificate (our choice). Plus, you'll receive FREE news, articles and action alerts from NaturalNews.com editors and join over 800,000 monthly readers who report extraordinary health improvements after becoming a subscriber!
  • Receive breaking news alerts on natural health solutions, renewable energy, the environment, global warming and more.
  • Receive a free instant download of our $29 Secret Sources guide that reveals top sources for little-known health and diet solutions.
Your Email Address:
Free Subscription Code:
Enter the numbers you see:
100% free of charge. Unsubscribe anytime.
Absolutely no spam. We respect your email privacy.

Recommended Special Report:

Seven Words that can Change the World
by Joseph R. Simonetta

Read this special report now...

"Seven Words That Can Change the World reveals the astonishing, simple truths that have the power to forever transform our world for the better while freeing our minds from the enslavement of limiting beliefs. This is not a text for the simple-minded; it is a guiding philosophy for the mindful, intelligent few who are wise enough to seek out -- and recognize -- the higher simplicities of truly purposeful living." - Mike Adams, the Health Ranger, editor of NaturalNews.com

More on NaturalNews.com:

Streaming Health Ranger Videos
CounterThink Cartoons
FREE Special Reports
Podcasts

Also Posted Today

The Politics of National Health Care Reform: Why no Popular Presidential Candidate can Solve Our Health Care Crisis (transcript)

Big Pharma "Doomed" if it Doesn't Change, Says Eli Lilly Chairman

The Poisoning of America's Water Supplies

Rickets on the Rise as Vitamin D Deficiency Surges Among Expectant Mothers

The Many Benefits of Coconut Oil and Coconut Butter

Beat Disease With Juice Feasting!

NEW 6-CD audio set reveals amazing new protocol for reversing cancer, diabetes, obesity, heart disease and more. Click to learn more.

Own Health Ranger Report Podcasts on Audio CD

Own the first 8 Health Ranger Report audio programs on 6 CDs. Covers weight loss, ADHD, vaccinations, processed meats, bone health and more. Click to learn more.

Featured Videos

Short clip on Aspartame
A short clip on aspartame from the documentary All Jacked Up.
Click here to view now...

Exclusive video on Aspartame
The dangers of aspartame! Exclusive interview footage from Cori Brackett of Sweet Remedy.
Click here to view now...

Exclusive Footage from All Jacked Up!
See interview footage featuring the Health Ranger in the upcoming junk food film, All Jacked Up.
Click here to view now...

Drug Ad Parody
See the Health Ranger's satire parody of Merck's cholesterol drug ad.
Click here to view now...

Free Health Reports!

Amazon Herb Company review
The pH Nutrition Guide to Acid / Alkaline Balance
Pet Food Ingredients Revealed! (shocking)
Medicine From Fish
The Water Cure
The Healing Power of Sunlight and Vitamin D

Featured CounterThink Cartoons

The Plan for the Food Supply


Processed Meat for Christmas


How the Cancer Industry Controls Women


Health Product Companies We Recommend

Read recommendations on supplement companies, health food manufacturers and personal care product makers that you can trust. Our 100% independent review list tells you who to trust and who to avoid in the natural health industry. Click to read.
This site is part of the Natural News Network © 2008 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. Truth Publishing sells no health or nutritional products and earns no money from health product manufacturers or promoters. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners.