Navigation Links
Greater Breast Density May Raise Cancer Risk
Date:7/27/2011

WEDNESDAY, July 27 (HealthDay News) -- Greater breast density is associated with an increased risk of breast cancer and certain aggressive tumor traits, new research says.

In the study, published in the July 27 online edition of the Journal of the National Cancer Institute, researchers used mammography to compare breast density in 1,042 postmenopausal women with breast cancer and a control group of 1,794 postmenopausal women without breast cancer.

Breast density on mammograms is determined by the proportions of fat, connective tissue and epithelial tissue in the breast. Previous research has shown that women with higher amounts of epithelial and stromal tissue have more density and higher risk of breast cancer. But it hasn't been clear whether breast density is associated with specific tumor characteristics and tumor type.

As expected, this new study found that breast cancer risk rose progressively with increasing breast density. The researchers also found that the link between density and breast cancer was stronger for larger tumors than for smaller tumors, for high-grade tumors compared to low-grade tumors, for estrogen receptor-negative tumors than for estrogen receptor-positive tumors, and for ductal carcinoma in situ (DCIS) tumors than for invasive tumors.

There was no association between breast density and other markers of tumor aggressiveness, including nodal involvement and HER2 status, the study authors noted in a journal news release.

"Our results suggest that breast density influences the risk of breast cancer subtypes by potentially different mechanisms," wrote Rulla M. Tamimi, of Harvard Medical School and Brigham and Women's Hospital in Boston, and colleagues.

"Further studies are warranted to explain underlying biological processes and elucidate the possible pathways from high breast density to the specific subtypes of breast carcinoma," the authors added.

More information

The American Cancer Society has more about breast cancer.

-- Robert Preidt

SOURCE: Journal of the National Cancer Institute, news release, July 27, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Akron Institute of Herzing University Launches Its First Bachelors Degree Programs to Prepare Students for Even Greater Success in Business, Health Care and IT
2. Chronic Migraines Take a Greater Toll
3. Overweight middle-aged adults at greater risk for cognitive decline in later life
4. Lumension Enhances Compliance and IT Risk Management Solution for Greater IT GRC Efficiency
5. Marathoners Face Greater Risk of Artery Stiffness
6. Marathoners Face Greater Risk of Artery Problems
7. Progress In Access To Safe Drinking-Water; Sanitation Needs Greater Efforts
8. Greater Wichita EDC Launches New Custom Designed GIS Database
9. Community acquired MRSA infection rates are 6 times greater in HIV patients
10. Cleveland Cavalier Darnell Jackson teams with Big Brothers Big Sisters of Greater Cleveland to Issue “Mentoring Challenge”
11. O'Lyn Roofing Contractors, Inc. Brings Professional and Eco-Friendly Roof Cleaning Services to Greater Boston MA Area Just in Time for Spring
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Greater Breast Density May Raise Cancer Risk
(Date:10/13/2017)... , ... October 13, 2017 , ... The Visiting Nurse ... Market. Featuring a collection of specialty vendors and unique items from across the nation, ... quality-focused health and wellness services offered by the VNA. The boutique will be ...
(Date:10/13/2017)... , ... October 13, 2017 , ... ... and Agile Software Development, has been awarded a contract by the Center for ... Agreement (BPA) aims to accelerate the enterprise use of Agile methodologies in a ...
(Date:10/12/2017)... ... , ... Planet Fitness, one of the largest and fastest growing franchisors and ... flagship location in Covington, LA at 401 N. U.S. Highway 190, in January of ... Depot in the Holiday Square shopping center. Its location allows it to serve both ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information about the technology: , ... to enable prevention of a major side effect of chemotherapy in children. Cisplatin ... patients. For cisplatin, hearing loss is FDA listed on-label as a dose limiting ...
(Date:10/12/2017)... RAPIDS, Mich. (PRWEB) , ... October 12, 2017 ... ... Wellness, has been named one of Michigan’s 2017 Best and Brightest in Wellness® ... and Brightest in Wellness® awards program on Friday, Oct. 20 from 7:30 a.m. ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... EXTON, Pa. , Oct. 12, 2017 ... global leader in innovative solutions for injectable drug administration, ... results before the market opens on Thursday, October 26, ... discuss the results and business expectations at 9:00 a.m. ... 877-930-8295 (U.S.) or 253-336-8738 (International). The conference ID is ...
(Date:10/11/2017)... Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today provided an update ... Puerto Rico , where the company manufactures ... Following a comprehensive onsite assessment, the ... temporary loss of power and minimal water damage due ... have resumed, and the company expects to return to ...
(Date:10/5/2017)... Oct. 5, 2017  In response to the ... and Maxillofacial Surgeons (AAOMS) released prescribing recommendations that ... be used as a first-line therapy to manage ... Recognizing the value and ... Paper "Opioid Prescribing: Acute and Postoperative Pain Management" ...
Breaking Medicine Technology: