Another benefit of green tea

Discuss herbal therapies, vitamins and minerals, bee stings, etc. here

Another benefit of green tea

Postby NHE » Fri Oct 19, 2012 4:35 pm

Green Tea's Anti-Cancer Secrets Revealed
http://www.livescience.com/24099-green- ... crets.html

Doctors have speculated for years on the possible benefits from drinking green tea. The ancient brew has been associated with just about everything healthy, from boosting the immune system to preventing and reversing chronic diseases.

Health studies on green tea, however, have been promising but not conclusive. But now doctors have better identified, at a cellular level, how green tea might prevent the spread of breast and prostate cancers.

Chemicals in green tea called polyphenols appear to inhibit two proteins that promote tumor cell growth and migration — namely, the vascular endothelial growth factor (VEGF) and the hepatocyte growth factor (HGF).

This finding, based on an ongoing study of 40 women with a type of breast cancer that doesn't respond to hormone therapy, was presented today (Oct. 18) at the 11th Annual International Conference on Frontiers in Cancer Prevention Research in Anaheim, Calif. This same mechanism might be behind positive results seen among prostate cancer patients, also presented today by a separate team of researchers at the same conference.

Testing tea's effects

The breast cancer study was led by Katherine D. Crew, an assistant professor of medicine and epidemiology at Columbia University Medical Center in New York. Crew's team randomly administered either a placebo or varying concentrations of a green tea extract known commercially as Polyphenon E, which contains several green tea polyphenols.

Those women receiving green tea extract had significantly lower levels of the tumor growth factors at two months into the treatment. While differences between those receiving a placebo and those receiving the extract were not as significant after four and six months, this was perhaps due to patients not keeping up with the pills, Crew said.

One goal of this ongoing study is to establish an appropriate dose of the green tea extract — the study levels were equivalent to eight to 24 cups of pure green tea — and Crew remains hopeful her group can identify this optimal level for the best therapeutic effect, she told LiveScience.

"This study was too small to say for sure if green tea will prevent breast cancer, but it may move us forward in terms of understanding antitumor mechanisms," Crew said.

Green tea and prostate cancer

Crew's work builds upon a smaller study of 26 men with prostate cancer, published in 2009 by a team led by James Cardelli of the Louisiana State University Health Sciences Center in Shreveport, La. Cardelli found similar reductions in the same growth factors with Polyphenon E.

A newer study on prostate cancer, presented at today's meeting, had participants drink lots of brewed green tea, not the extract. This study, led by Susanne Henning, an adjunct professor at the David Geffen School of Medicine at the University of California Los Angeles, involved 67 men about to undergo a prostatectomy, the removal of an enlarged or cancerous prostate.

In the weeks before the procedure, these men were randomly assigned to a regimen of drinking either six cups of brewed green tea or water daily. Those who drank the green tea had significantly lower levels of prostate-specific antigen (PSA); elevated PSA is associated with prostate tumor growth.

Combined with Cardelli's 2009 study, the newer finding suggests green tea polyphenols, as consumed in copious amounts of green tea, might help control the two tumor growth factors — VEGF and HGF — to prevent full-blown prostate cancer.

Although Crew said it is still too early to recommend green tea to prevent cancer, she added that researchers are conducting several ongoing studies to explore the use of oral green tea extract in high-risk women for the primary prevention of breast cancer.

These studies used green tea in its extracted or pure form. Those hoping to reap healthful benefits of green tea should note that most tea products in the supermarket contain only small amounts of green tea and are often mixed with sugar or other flavors.

In Japan, where green tea consumption is high, prostate and breast cancer rates are about three times lower when compared with the United States, according to the World Health Organization, although differences could be attributed to other dietary factors.

The Frontiers in Cancer Prevention Research conference is hosted annually by the American Association for Cancer Research.


NHE's Edit: This article discusses drinking 6 cups of green tea per day to obtain a beneficial reduction in PSA levels. However, one doesn't have to drink 48 oz. of fluid which can be a problem for PwMS whose bladder is affected. Make your green tea using 2 or 3 tea bags per cup so you get the same quantity of tea, but less fluid. I've found that my taste buds quickly adapted to using 3 tea bags of green tea per 12 oz cup.
User avatar
NHE
Volunteer Moderator
 
Posts: 3355
Joined: Sat Nov 20, 2004 4:00 pm

Advertisement

Re: Another benefit of green tea

Postby stillfighting » Tue Oct 23, 2012 3:17 pm

I am going to make some of that right now.
Thanks for reminding me.
User avatar
stillfighting
Family Elder
 
Posts: 133
Joined: Wed Sep 15, 2010 3:00 pm

Re: Another benefit of green tea

Postby Shayk » Fri Mar 01, 2013 9:30 am

Hi all

Recently came across an open access review article about green tea that I thought may be of interest to some.

Epigallocatechin-3-gallate: a useful, effective and safe clinical approach for targeted prevention and individualised treatment of neurological diseases ?

It's fairly technical but there were a few tidbits I could understand. Info on a few small trials in people with MS are mentioned (as are the mice studies :roll: )

Take care all

Sharon
User avatar
Shayk
Family Elder
 
Posts: 779
Joined: Fri Feb 06, 2004 4:00 pm

Re: Another benefit of green tea

Postby CureOrBust » Fri Mar 01, 2013 6:03 pm

NHE wrote:Make your green tea using 2 or 3 tea bags per cup so you get the same quantity of tea, but less fluid. I've found that my taste buds quickly adapted to using 3 tea bags of green tea per 12 oz cup.
And you've also became addicted to the caffeine hit.
User avatar
CureOrBust
Family Elder
 
Posts: 2914
Joined: Wed Jul 27, 2005 3:00 pm
Location: Sydney, Australia

Re: Another benefit of green tea

Postby NHE » Sat Mar 02, 2013 12:16 am

CureOrBust wrote:
NHE wrote:Make your green tea using 2 or 3 tea bags per cup so you get the same quantity of tea, but less fluid. I've found that my taste buds quickly adapted to using 3 tea bags of green tea per 12 oz cup.
And you've also became addicted to the caffeine hit.


I drink decaf. :mrgreen:
User avatar
NHE
Volunteer Moderator
 
Posts: 3355
Joined: Sat Nov 20, 2004 4:00 pm

Re: Another benefit of green tea

Postby Liberation » Sat Mar 02, 2013 4:44 am

NHE wrote:Green Tea's Anti-Cancer Secrets Revealed
http://www.livescience.com/24099-green- ... crets.html



How about MS?
User avatar
Liberation
Family Elder
 
Posts: 336
Joined: Fri Jan 07, 2011 4:00 pm

Re: Another benefit of green tea

Postby Gogo » Sat Mar 02, 2013 5:00 am

NHE wrote:Green Tea's Anti-Cancer Secrets Revealed
http://www.livescience.com/24099-green- ... crets.html



It is good to know that we won't have prostate cancer, neither breast cancer if we drink lots of green teas, but we still have MS. :) Do you have more good news like this? :)
Gogo
Family Member
 
Posts: 77
Joined: Thu Aug 09, 2012 6:47 am

Re: Another benefit of green tea

Postby NHE » Sat Mar 02, 2013 3:50 pm

Liberation wrote:How about MS?


There have been many posts about the potential benefit of green tea in MS. That's why this post had the subject "Another benefit of green tea." For MS patients who are using green tea to reduce chronic inflammation, it might be interesting to read about some of the other benefits of green tea.
User avatar
NHE
Volunteer Moderator
 
Posts: 3355
Joined: Sat Nov 20, 2004 4:00 pm

Re: Another benefit of green tea

Postby CureOrBust » Sat Mar 02, 2013 5:32 pm

NHE wrote:I drink decaf. :mrgreen:

Have you read the process employed to decaffeinate coffee? https://en.wikipedia.org/wiki/Decaffeination I would not be surprised if it removes or damages some of the properties within the product. And if any leftovers are present from the process, it will possibly negate the benefits you would be looking for. As for regulation, have a word to all those horse meat consumers in the UK & the rest of Europe.

http://www.amazing-green-tea.com/decaffeinated-green-tea.html
A 2003 study conducted by the UCLA Center for Human Nutrition found that decaffeinated tea contains only a third of the catechins found in regular tea. Regular tea contains 21 to 103 milligrams of catechins per gram. Decaf contains only 5 to 50 milligrams.
User avatar
CureOrBust
Family Elder
 
Posts: 2914
Joined: Wed Jul 27, 2005 3:00 pm
Location: Sydney, Australia


Return to Natural Approach

 


  • Related topics
    Replies
    Views
    Last post

Who is online

Users browsing this forum: No registered users


Contact us | Terms of Service