Navigation Links
Drinking May Raise Breast Cancer Risk
Date:4/13/2008

Effect was especially strong for estrogen-sensitive tumor types, study found

SUNDAY, April 13 (HealthDay News) -- Alcohol, consumed even in small amounts, increases the risk of breast cancer and particularly estrogen-receptor and progesterone-receptor positive breast cancer, a new study shows.

The findings, expected to be presented Sunday at the annual meeting of the American Association for Cancer Research, in San Diego, are followed by a second study that found an association between breast cancer risk and two genes involved in alcohol metabolism.

Previous data has suggested that consuming alcohol ups the risk of breast cancer, although the precise mechanisms have not been clarified.

In some forms of breast cancer, malignant cells have receptors that render them sensitive to hormones such as estrogen. The first study aimed to see if the hormone receptor status of the tumor influenced the relationship between alcohol consumption and breast cancer risk.

In the study, a team led by Dr. Jasmine Lew of the U.S. National Cancer Institute followed more than 184,000 postmenopausal women for an average of seven years.

Those who had less than one drink a day had a 7 percent increased risk of breast cancer compared to teetotalers, the team reported. Women who drank one to two drinks a day had a 32 percent increased risk, and those who had three or more glasses of alcohol a day had up to a 51 percent increased risk.

But the risk was seen mostly in those 70 percent of tumors classified as estrogen receptor- and progesterone receptor-positive. Researchers suspect that alcohol may have an effect on breast cancer via an effect on estrogen.

The risk was similar whether women consumed primarily beer, wine or spirits, the NCI team noted.

The second study dug deeper into other possible mechanism by which alcohol consumption increases breast cancer risk.

"For years, we've known that there's an association between alcohol drinking and breast cancer risk, but nobody knows yet what the underlying biological mechanisms are," said Dr. Catalin Marian, lead author of the study and a research instructor in oncology at the Lombardi Comprehensive Cancer Center at Georgetown University in Washington, D.C. "The logical step was to begin analyzing the alcohol metabolizing genes."

And indeed, two of these genes -- ADH1B and ADH1C -- were associated with a two-fold increase in breast cancer risk.

But the study does not prove a definite cause-and-effect link. "This is an association," Marian said. "This type of study is good for generating hypotheses. It's not a definite conclusion. It needs to be replicated by other studies to say for sure that what we found is there."

Another researcher urged caution in interpreting the results of both studies.

"These studies are too early for use in a clinical setting or to advance a public health message," said Dr. Peter Shields, co-author of the genetics study and deputy director of the Lombardi Comprehensive Cancer Center.

However, he added that the findings "really do advance science, and, with proper replication in other studies, then they may be highly clinically significant."

More information

There's more on breast cancer at the U.S. National Cancer Institute.



SOURCES: Catalin Marian, M.D., Ph.D., research instructor, oncology department, cancer genetics and epidemiology division, and Peter Shields, M.D., deputy director, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, D.C.; presentations, April 13, 2008, annual meeting, American Association for Cancer Research, San Diego


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fast Lube Centers Play Key Role in Keeping Drinking Water Safe
2. Its Spring Break: How Much Does Heavy Drinking Affect Your Body?
3. Water Advocates Calls for More Drinking Water and Sanitation Projects
4. Waters Offers U.S. Water Authorities Complimentary Drinking Water Testing for the Presence of Pharmaceuticals
5. Free online scientific journal on drinking water
6. Drinking Water Association Discusses Pharmaceuticals in Water
7. Statement from American Water Works Association on Associated Press Story on Pharmaceuticals in Drinking Water
8. New study sheds light on excessive drinking among the elderly
9. Is your drinking water safe?
10. NHS Choices Launches Tool to Assess Drinking Behaviour
11. Vestergaard Frandsen to Launch High Tech Filter to Provide Clean and Safe Drinking Water to People in Developing Nations
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Drinking May Raise Breast Cancer Risk
(Date:2/12/2016)... ... February 12, 2016 , ... According to an article ... account for a significant portion of hernia repairs throughout the United States. Commenting on ... Hernia Center notes that this trend has not only been expected, but it seems ...
(Date:2/12/2016)... ... 12, 2016 , ... The law firm of Morrow, Morrow, Ryan & Bassett ... of these scholarships is to encourage applicants to pursue a degree in their field ... two parishes. , “We have available jobs in St. Landry and Evangeline Parishes ...
(Date:2/12/2016)... ... February 12, 2016 , ... The Lymphoma Research Foundation (LRF) ... and serving the lymphoma community through a comprehensive series of education programs, outreach ... community at its 10th anniversary Fashion Luncheon on Monday, February 8, 2016. The ...
(Date:2/12/2016)... ... February 12, 2016 , ... ... — 1:30 p.m. – 3:00 p.m. EST, http://www.fdanews.com/fixeddosecombination ... cycle of pharmaceutical products, garnering increased attention from all stakeholders in the development ...
(Date:2/12/2016)... ... 12, 2016 , ... As a former television executive, owner Tal Rabinowitz knows ... time to decompress, Rabinowitz found herself drawn to a casual meditation class while working ... her life, implementing a 20-minute-per-day meditation practice with her team. After her tenure at ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... -- Eli Lilly and Company (NYSE: LLY ) today announced ... vitamin regimen patent would not presently be infringed by Actavis ... , Italy and Spain ... dextrose solution.  --> --> ... held that Lilly,s patent would be indirectly infringed by Actavis ...
(Date:2/12/2016)... , Feb. 12, 2016  Apellis ... completed a $47.1 million Series D preferred ... Asset Management, Hillhouse Capital Group and venBio ... Venture Investments, AJU IB Investment, and Epidarex ... used to further advance clinical trials in ...
(Date:2/11/2016)... 2016 The primary goal of this research ... on the usage of liquid biopsy. Key information the ... - Timeframe of liquid biopsy adoption amidst future users ... organization type - Sample inflow to conduct liquid biopsy ... serum, and so on. - Correlation analysis of sample ...
Breaking Medicine Technology: