Navigation Links
Many breast cancer patients take high doses of antioxidants despite possible consequences
Date:6/7/2009

A new study finds that many women with breast cancer take antioxidant supplements while undergoing cancer treatment, even though the consequences of doing so are unknown. Published in the July 15, 2009 issue of CANCER, a peer-reviewed journal of the American Cancer Society, the study indicates that additional research should be undertaken to determine the effects of antioxidant supplementation on the health and survival of breast cancer patients.

Antioxidant supplements include vitamin C, vitamin E, beta-carotene, and selenium. They are found in individual supplements as well as in many multivitamins. Many breast cancer patients believe that antioxidant supplements will protect them from the side effects of breast cancer treatment, help prevent breast cancer recurrence, and improve their overall health. However, the actual effects of taking antioxidants during cancer treatment are poorly understood and the findings to date are mixed. Some physicians believe antioxidants may in fact interfere with radiation and some types of chemotherapy, which often attacks tumor cells by generating reactive oxygen species (ROS), very small molecules that play a role in cell development.

Researchers led by Heather Greenlee, ND, PhD, Assistant Professor of Epidemiology and Medical Oncology (in Medicine) at Columbia University Mailman School of Public Health in New York, investigated the prevalence of antioxidant use in women with breast cancer who participated in the population-based Long Island Breast Cancer Study Project (LIBCSP). LIBCSP, which included more than 1,500 breast cancer patients, began as a federally mandated study that investigated whether breast cancer risk was associated with environmental exposures among women in Nassau and Suffolk counties in New York State. Dr. Greenlee's study is based on the 764 patients who completed a follow-up interview and provided information on antioxidant supplement use.

Among the 764 patients studied, 663 women (86.8 percent) reported receiving chemotherapy, radiation, or hormone therapy for breast cancer. Of these 663 women, six in ten (60.5 percent) reported using antioxidants during breast cancer treatment, which included chemotherapy, radiation, and tamoxifen (anti-estrogen) therapy.

About seven in ten antioxidant users (69.3 percent) used high doses, defined as higher than the dose contained in a Centrum multivitamin. Women who took high doses of antioxidants during treatment were more likely to be using tamoxifen and to have a history of eating more fruits and vegetables, using herbal products, and engaging in mind-body practices.

"Given the common use of antioxidant supplements during breast cancer treatment, often at high doses and in conjunction with other complementary therapies, future research should address the effects of antioxidant supplementation on breast cancer outcomes," including whether antioxidants affect treatment toxicities, treatment efficacy, cancer recurrence, and survival, say the authors.


'/>"/>

Contact: David Sampson
david.sampson@cancer.org
American Cancer Society
Source:Eurekalert

Related medicine news :

1. Survival differences by race most apparent in advanced stages of breast cancer
2. MRI finds breast cancer before it becomes dangerous
3. Pathway links inflammation, angiogenesis and breast cancer
4. Drop in breast cancer incidence linked to hormone use, not mammograms
5. Breast cancer prevention practices vary across Canada
6. Eating junk food whilst pregnant and breastfeeding may lead to obese offspring
7. Acrylamide Wont Raise Breast Cancer Risk
8. New link between estrogen and breast cancer
9. Hypnosis Eases Pain of Breast Cancer Surgery
10. Discovery suggests location of genes for breast density, a strong risk factor for breast cancer
11. Longaberger Expands Horizon of Hope Campaign to Build Support for American Cancer Societys Breast Cancer Initiatives
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... WILMINGTON, Del. (PRWEB) , ... October 12, 2017 ... ... technology and advisory services for healthcare compliance program management, will showcase a range ... and National Association for Assisted Living (NCAL) Convention and Expo to be held ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the demand of today’s consumer and regulatory authorities worldwide. From Children’s to Adults ... tested to meet the highest standard. , These products are also: Gluten ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... in post-acute health care, have expanded their existing home health joint venture through ... AccentCare has been operating a joint venture home health company with Asante, delivering ...
(Date:10/12/2017)... ... October 12, 2017 , ... HMP , a leader in healthcare ... Folio Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during ... , The annual award competition recognizes editorial and design excellence across a range of ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... of Michigan’s 2017 Best and Brightest in Wellness® by Best and Brightest. OnSite ... program on Friday, Oct. 20 from 7:30 a.m. to 2 p.m. at the ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... Hill-Rom Holdings, Inc. (NYSE: HRC), will host ... webcast on Friday, November 3, 2017, beginning at 7:00 ... approximately 8:30 a.m. (CDT) / 9:30 a.m. (EDT). ... performance and guidance for 2018, Hill-Rom executives will also ... performance, and long-range financial outlook through 2020. ...
(Date:9/25/2017)... 2017  EpiVax, Inc., a leader in the ... today announced the launch of EpiVax Oncology Inc., ... therapeutic cancer vaccines. EpiVax has provided $500,000 in ... enabling technologies to the new precision immunotherapy venture. ... Oncology as Chief Executive Officer. Gad brings over ...
(Date:9/19/2017)... , Sept. 19, 2017   ZirMed Inc ., a ... today announced that it has been ranked #1 by its ... Book™ Rankings 2017 User Survey. ZirMed was recognized as ... large hospitals and medical centers over 200 beds and holds ... healthcare technology user survey history. ...
Breaking Medicine Technology: