Breastfeeding reduces risk of breast cancer for women who delay childbirth

Los Angeles, Calif. April 16, 2007Breastfeeding can offset the increased risk of invasive breast cancer for women who had their first full-term pregnancy after the age of 25, a study led by researchers at the University of Southern California (USC) suggests.

The findings of the study were presented at a news conference on Monday, April 16 at the 2007 annual meeting of the American Association for Cancer Research held in Los Angeles.

"Breastfeeding may have a protective effect that negates the increased risk of breast cancer associated with late pregnancies," says Giske Ursin, M.D., Ph.D, associate professor of preventive medicine at the Keck School of Medicine of the University of Southern California. "As more women may choose to delay pregnancy until after 25, it is important to note that breastfeeding provides protection against both estrogen and progesterone receptor positive and negative tumors."

While having a first full-term pregnancy before the age of 25 and having many children protect against the type of breast cancers that express estrogen and progesterone receptors, these factors do not protect against the rarer tumors that do not have these receptors. Breastfeeding, however, appears to protect against both types of breast tumors, Ursin says.

Researchers analyzed data for women aged 55 and olderincluding 995 invasive breast cancer patientswho participated in the Women's Contraceptive and Reproductive Experiences (CARE) Study. The women varied by their age at first birth, their breastfeeding history and hormone receptor status.

Previous results from the Women's CARE Study have shown that early age at first pregnancy (younger than 25) and having many children (defined as four or more) are associated with a lower risk of breast cancer, Ursin says. Researchers sought to gain a better understanding of the associations between reproductive factors and breast cancer risk in women with a late age at first bi

Contact: Meghan Lewit
University of Southern California

Page: 1 2

Related medicine news :

1. Breastfeeding duration rates for infants born in an inner-city WHO/UNICEF Baby-Friendly hospital
2. Breastfeeding and good fats help new moms fight depression
3. Breastfeeding overcomes a genetic tendency toward ear infections, scientists discover
4. Breastfeeding may protect against gluten intolerance (coeliac disease)
5. Breastfeeding as good for childrens blood pressure as exercise and salt restriction
6. Nonhormonal drug reduces hot flashes in men treated for prostate cancer
7. Circumcision reduces HIV infection risk
8. Retinol lotion reduces the fine wrinkles from natural aging of skin
9. Improving communication with families of dying patients reduces stress, anxiety and depression
10. New study: Pycnogenol reduces heart failure
11. Drinking farm milk reduces childhood asthma and allergies but raw consumption remains unsafe

Post Your Comments:

(Date:12/1/2015)... ... December 01, 2015 , ... Califia Farms , ... that its iconic bottle has won top honors in Beverage World Magazine’s Global Packaging ... also announced that it has been selected as a 2015 U.S.A. Taste Champion in ...
(Date:12/1/2015)... ... 2015 , ... December 1, 2015 -- InstantLabs is adding ... product line of food safety and seafood fraud prevention tools. , The new ... InstantLabs to offer fast, reliable species identification for the four most popular salmon. ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... have been lifted as IMAGE Information Systems launches MED-TAB™ -- the world’s first ... Annual Meeting from November 29 to December 4, 2015. , MED-TAB is ...
(Date:12/1/2015)... ... December 01, 2015 , ... For the millions of ... Hollister Incorporated has launched the VaPro Plus Pocket™ touch free hydrophilic intermittent catheter. ... touch free catheter portfolio,” said Michael Gresavage, Vice President North America. "We designed ...
(Date:12/1/2015)... ... December 01, 2015 , ... McLean, VA., December 1, 2015 ... price per sprint agile development contract to support the National Geospatial-Intelligence Agency's (NGA) ... provides software engineering, infrastructure, as well as operations and sustainment support to the ...
Breaking Medicine News(10 mins):
(Date:12/1/2015)...  Athletic apparel company Tommie Copper , ... $1.35 million to settle Federal Trade Commission charges ... clothing would relieve severe and chronic pain and ... Tommie Copper,s proposed settlement with ... founder and chairman Thomas Kallish to ...
(Date:12/1/2015)... , 1 de diciembre de 2015 /PRNewswire/ ... para cuchillas de precisión, develó hoy un ... identidad de marca. El nuevo logo destaca ... y la ingeniería de productos con cuchillas ... http://photos.prnewswire.com/prnh/20151130/291694LOGO ...
(Date:12/1/2015)... PUNE, India , December 1, 2015 ... to a new market research report "Nucleic Acid Labeling ... Techniques (PCR, Nick Translation, Random Primer, In Vitro Transcription, ... to 2020", published by MarketsandMarkets, The global market is ... USD 1,271.8 Million in 2015, growing at a CAGR ...
Breaking Medicine Technology:
Cached News: