ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

15 Health Benefits of Chia Seeds, According to Science

Tangerine Oil: A Citrusy Essential Oil With Well-Rounded Uses

Magnesium Deficiency Raises Your Risk of Many Chronic Ailments

Resveratrol supplementation improves arterial stiffness in type 2 diabetics

CoQ10's Potential Capabilities for Your Health

How Can Melatonin Benefit You?

Testosterone replacement therapy associated with improved urinary, sexual function

Cloves: Boost Your Immune System the Sweet and Spicy Way

8 Chia Seed Recipes

The Many Potential Health Benefits of Curcumin

 
Print Page
Email Article

Key Questions Direct Next Steps in Diet-Cancer Research

  [ 184 votes ]   [ Discuss This Article ]
www.ProHealth.com • November 10, 2003


Source: American Institute for Cancer Research; Newsletter 81, Fall 2003

Before scientists can use human trials to study how certain foods influence the cancer process, they must first know some basic things about those foods. This research answers essential questions so scientists can take the next step — designing human trials.

At the heart of every scientific study lies a hypothesis, a single question that must be answered. In the diet-cancer field these questions can be narrowly focused (“Do polyphenols found in green tea inhibit the signal transduction pathways of human cancer cells in vivo?”) or broad in scope (“Does drinking green tea lower cancer risk?”).

These questions are not unrelated: an answer to the first can contribute to answering the second in a clearly defined way. That’s why scientists funded by AICR are studying so many different foods (and food components) in laboratories. They’re experimenting to see how cancer cells react when exposed to different potentially cancer-fighting foods, at different amounts and at different times. Getting these answers allows scientists to design human trials that build on previous studies. Let’s look at one example.

Green Tea Inhibits Tumors in Mice

C.S. Yang, Ph.D., at Rutgers University, is an authority on tea consumption and cancer. He is conducting studies that show that polyphenols - natural substances found in green tea - may prevent the formation of cancer tumors.

Green tea polyphenols are believed to fight against cancer in several ways. For example, they seem to make it more difficult for a cancer cell to respond to growth signals. Thus it slows cancer cell growth. Polyphenols may not be the only chemicals in tea providing cancer prevention benefits, Dr. Yang notes. Dr. Allan H. Cooney’s lab, also at Rutgers, is studying skin cancer. It has found that green tea’s caffeine, rather than its polyphenols, is mainly responsible for the inhibition of tumor formation.

The many previous studies that have compared the green tea consumption of a given country or region to the cancer rates among its population have shown conflicting results, Dr. Yang says. This may indicate that tea is not strong enough to overcome the risk-raising influence of other factors.

“The current method of assessing tea consumption is inadequate,” he says.

Dr. Yang’s lab is developing biomarkers for tea consumption and studying the bioavailability of tea constituents. Bioavailability refers to how well a substance is absorbed into the blood and distributed to different organ tissue. Because polyphenols are not well absorbed and easily eliminated from the blood, green tea seems potentially more useful in preventing oral, stomach and colon cancer than cancer of an internal organ such as the liver, Dr. Yang says.

Dr. Yang’s work on the bioavailability and anti-cancer potential of green tea polyphenols allows researchers to design human trials to find out: How much green tea should human subjects drink to get the most cancer-fighting benefit? Can the tea be used in a way that makes its polyphenols more bioavailable? When should it be consumed, and how long do the effects last?



Post a Comment

Featured Products From the ProHealth Store
Energy NADH™ 12.5mg FibroSleep™ Ultra EPA  - Fish Oil


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength

Natural Remedies

Block Acid Reflux to Prevent Esophageal Problems! Block Acid Reflux to Prevent Esophageal Problems!
Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10 Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10
The Genetic Mutation That May Compromise Your Health - And What to Do About It The Genetic Mutation That May Compromise Your Health - And What to Do About It
Safely Burn Away Body Fat Safely Burn Away Body Fat
The Brain Boosting and Fatigue Fighting B-12 The Brain Boosting and Fatigue Fighting B-12

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map