Foodconsumer.org

 
USCards.com Bookmark Us
All Food, Diet and Health News 
 
 Misc. News
 Must-Read News
 Letter to Editor
 Featured Products
 Recalls & Alerts
 Consumer Affair
 Non-food Things
 Health Tips
 Interesting Sites
 
 Diet & Health
 Heart & Blood
 Cancer
 Body Weight
 Children & Women
 General Health
 Nutrition
 
 Food & Health
 Food Chemicals
 Biological Agents
 Cooking & Packing
 Technologies
 Agri. & Environ.
 Laws & Politics
 
 General Health
 Drug News
 Diseases
 Mental Health
 Infectious Disease
 Environment
 Lifestyle
 Government
 Other News
 
 Food Consumer
 FC News & Others
Search





Search Foodconsumer & Others


Add to Google
Add to My Yahoo
Newsfeed

foodconsumer.org news feed
Su bmit news[release]



More than 100 credit cards available at uscards.com from uscards.com, you can pick more than 100 credit cards


General Health : Lifestyle Last Updated: Apr 20, 2011 - 9:38:09 AM


Exercise cuts cancer risk – new study
By Sue Mueller
Nov 23, 2008 - 11:32:55 AM

E.mail t.his a.rticle
 P.rinter f.riendly p.age
Get n.ewsletter
 
   

Physical inactivity or lack of exercise may dramatically increase risk of breast cancer, according to a new report published in the Dec 2008 issue of Cancer Causes and Control.

 

The report by Coyle Y.M at the University of Texas Southwestern Medical Center in Dallas, TX says exercise lowers estrogen levels that if high would cause a higher risk of breast cancer.

 

Coyle suggests that estrogen induces breast cancer by increasing breast epithelial cell proliferation, the metabolism of estrogen to genotoxic metabolites and the silencing of tumor suppressor genes (TSGS) that have been implicated in breast carcinogenesis.

 

According to the author, animal studies suggest that exercise slows breast tumor growth by promoting changes in cellular proliferation and apoptosis.

 

Human studies albeit limited also suggest that exercise produces favorable changes in estrogen metabolism which in turn reduces the risk of breast epithelial cell proliferation.

 

Coyle says that exercise reduces promoter hypermethylation of TSGS in breast carcinogenesis by lowering estrogen levels.

 

Further research is needed to clarify the mechanisms that relate to exercise as a negative modulator of breast cancer risk, the author concludes.

 

Many studies have suggested that regular physical activity or exercise reduces risk of cancer.

 

One recent study involving 5,968 women led James McClain of the National Cancer Institute and colleagues confirmed previous studies that have shown people who did physical exercise regularly were at lower risk of developing cancer.

 

The study reported at a meeting of the American Association for Cancer Research also found among women who were in the upper half with regard to the amount of physical activity each week, those who slept less than seven hours per night were 47 percent more likely to develop cancer than those who slept longer.

 

One study led by Michael F Leitzmann and colleagues at the National Cancer Institute and published in the Oct. 2008 issue of Breast Cancer Research found that postmenopausal women with body mass index lower than 25 kg/m2 who engaged in vigorous exercise were 23 percent less likely to develop breast cancer.      But no such association was found in overweight and obese women.

 

The researchers followed up 32,000 women who enrolled in the Breast Cancer Detection Demonstration Project Follow-up Study to examine if there was an association between risk of breast cancer and physical exercise.

 

Another study led by Freedman DM and colleagues from National Cancer Institute and published in Oct 21, 2008 issue of Cancer Causes and Control found exercise such as walking and hiking for 10 or more hours per week rendered the greatest protection against breast cancer in women, a 43 percent reduction in the risk.





© 2004-2008 by foodconsumer.org unless otherwise specified

Top of Page




Google
 
Web foodconsumer.org

Search Consumer-friendly Health Sites












We have moved to Food Consumer . Org



disclaimer | advertising | jobs | privacy | about us | newsletter | Submit news/articles
link partners: | Buy Viagra | MarketAmerica.com |
Buy a home | Auto Insurance | Mortgage refinancing | DaytonaCPA.com | Take Your Blog to a Higher Level
© Copyright 2004 - 2008 foodconsumer.org All rights reserved

Disclaimer: What's published on this website should be considered opinions of respective writers only and foodconsumer.org which has no political agenda nor commercial ambition may or may not endorse any opinion of any writer. No accuracy is guaranteed although writers are doing their best to provide accurate information only. The information on this website should not be construed as medical advice and should not be used to replace professional services provided by qualified or licensed health care workers. The site serves only as a platform for writers and readers to share knowledge, experience, and information from the scientific community, organizations, government agencies and individuals. Foodconsumer.org encourages readers who have had medical conditions to consult with licensed health care providers - conventional and or alternative medical practitioners.