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:9/19/2017)... ... September 19, 2017 , ... ... a board-certified veterinary oncologist, has agreed to serve as strategic adviser to ... Dr. Tripp is founder of the Bridge Animal Referral Center (BARC) in ...
(Date:9/19/2017)... TX (PRWEB) , ... September 19, 2017 , ... ... the United States, named Dr. Howard Ng, as the new Medical Director of its ... be the new facility Medical Director of our Pflugerville- FM 685 location,” said Dr. ...
(Date:9/19/2017)... , ... September 19, 2017 , ... Ron Norman, CEO ... today the importance of making a distinct rather than generic impression in the job ... to look through a stack of resumes knows that the first impression they give ...
(Date:9/19/2017)... ... September 19, 2017 , ... When it comes to household safety, there are ... on how to keep babies and toddlers safe, and there's no better time for ... Great Time to Check Labels, Brands that sell all kinds of common consumer products ...
(Date:9/19/2017)... ... September 19, 2017 , ... ... app offering. The new app provides a modern design with a more streamlined ... experience. , The fred’s Pharmacy mobile app includes hundreds of digital coupons that ...
Breaking Medicine News(10 mins):
(Date:9/7/2017)... STOCKHOLM , Sept. 7, 2017 NuvoAir ... Air Smart Spirometer, announced today a partnership with Novartis Pharma ... partnership solidifies NuvoAir,s position as the leading mobile spirometry platform ... respiratory patients. ... spirometry test ...
(Date:9/6/2017)... 2017  Medical professionals are expected to ... treating their patients. Medical simulations offer clinicians ... patients. Simulation provides a safe method for ... procedures, refine techniques and build confidence, without ... technology, such as augmented reality, will now ...
(Date:9/5/2017)... , Sept. 5, 2017 Sapheneia and Scannerside ... solution. Scannerside DoseCheck is a third-party Vendor neutral CT ... scanners and allows compliance with current MITA standards. ... XR 29 DoseCheck solution is specifically designed to provide ... of potential radiation doses over a predefined threshold. Scannerside ...
Breaking Medicine Technology: