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

Fighting Heartburn and Gerd Naturally – And Safely!

Vital Molecule Increases Cellular Energy and Improves Cognitive Function

Natural Bladder Control, Go Less and Live More

Top Vitamin and Mineral Deficiencies — Are You at Risk?

Trimming the spare tire: Canola oil may cut belly fat

How Pomegranate May Protect Against Cancer

Omega Fix for Obesity: How the Right Fats Fight Fat

Curcumin Reverses the Cellular Damage of Chronic Stress

Probiotics improve cognition in Alzheimer's patients

The Onion: Cancer Fighter and Food Preserver

 
Print Page
Email Article

Estrogen found as link between obesity and breast cancer in postmenopausal women

  [ 64 votes ]   [ Discuss This Article ]
www.ProHealth.com • August 20, 2003


PHILADELPHIA (August 13, 2003) – Researchers have known that obesity is associated with an increased risk of breast cancer in postmenopausal women, but a new study now explains why. According to research published in the August 20, 2003, issue of the Journal of the National Cancer Institute obesity increases the risk of breast cancer in postmenopausal women by increasing the amount of estrogens in the blood. High levels of estrogen definitively have been linked as a causative factor for breast cancer.

The finding was reported by the Endogenous Hormones and Breast Cancer Collaborative Group. Joanne F. Dorgan, M.P.H, Ph.D., an epidemiologist at Fox Chase Cancer Center, is the lead investigator of one of eight cohorts included in the analysis.

"We've known that postmenopausal women who are overweight have an increased risk of breast cancer, and the risk also is higher in women who have higher levels of estrogens in their blood," said Dorgan. "Our results suggest that obesity increases breast cancer risk in postmenopausal women by increasing serum concentrations of estrogens."

For the study, researchers analyzed the blood donated by women in eight cohorts in the United States, Europe and Asia. All the women were cancer-free and were not using hormone replacement therapy when the blood was collected. The women were followed for two to 12 years and 624 women developed breast cancer. Hormones in their blood were compared with the hormones from 1,640 cancer-free women who were the same age when blood was donated as the women who developed breast cancer. Obesity was measured by body mass index (BMI), a measure of weight that is adjusted for height.

Most of the established risk factors for breast cancer are either fixed (family history and genotype) or not amenable to modification (age at menarche, number of and ages at pregnancy, age at menopause).

"This is an example of a risk factor that a woman can control," Dorgan said. "The effect of obesity on breast cancer risk is important because the prevalence of obesity is high and increasing." According to Dorgan, the estimated prevalence of obesity in U.S. women aged 60 to 74 increased from 29 percent between 1988 and 1994 to 40 percent in 1999-2000.

"Obesity is a risk factor for other diseases such as heart disease and diabetes," Dorgan added. "Women need to know that breast cancer has been added to that ominous list."


###
The Endogenous Hormones and Breast Cancer Collaborative Group is international consortium that includes epidemiologists from the United States, England, Italy, and Japan. The group conducts research on the relationship of endogenous hormones to breast cancer development. For the current analysis, researchers from eight of the nine cohorts pooled their data so they could evaluate whether higher serum estrogens in heavier women explains the relationship of obesity with breast cancer risk in postmenopausal women.

The nine cohorts and the principal investigators who make up the Endogenous Hormones and Breast Cancer Collaborative Group include the Columbia, Mo., cohort (JF Dorgan); the Guernsey, UK, cohort (TJ Key); Nurses' Health Study cohort (SE Hankinson); New York University Women's Health Study cohort (PG Toniolo); the ORDET, Italy, cohort (F Berrino); the Rancho Bernardo cohort (E Barrett-Connor); the RERF, Japan, cohort (M Kabuto); the SOF cohort (JA Cauley); and the Washington County, Md., cohort (KJ Helzlsouer).

Fox Chase Cancer Center, one of the nation's first comprehensive cancer centers designated by the National Cancer Institute in 1974, conducts basic and clinical research; programs of prevention, detection and treatment of cancer; and community outreach. For more information about Fox Chase activities, visit the Center's web site at http://www.fccc.edu or call 1-888-FOX CHASE.



Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ Ultra EPA  - Fish Oil Optimized Curcumin Longvida®


Article Comments



Be the first to comment on this article!

Post a Comment


 
Natural Pain Relief Supplements

Featured Products

FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health

Natural Remedies

Nutrients to Combat the Modern Stress Epidemic Nutrients to Combat the Modern Stress Epidemic
Undenatured Type II Collagen - Chicken Soup for Your Joints Undenatured Type II Collagen - Chicken Soup for Your Joints
Priming Your Immune System for Cold & Flu Season Priming Your Immune System for Cold & Flu Season
Coping When Colds or Flu Catch Up with You Coping When Colds or Flu Catch Up with You
Everything You Always Wanted to Know About Sleep But Were Too Tired to Ask Everything You Always Wanted to Know About Sleep But Were Too Tired to Ask

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

© 2016 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map