An article published in the May, 2012 issue of the International Journal of Radiation Oncology•Biology•Physics reveals that supplementing with beta-carotene, an antioxidant nutrient that acts as a precursor to vitamin A, is safe for prostate cancer patients undergoing radiation therapy.
Because radiation therapy works via pro-oxidant effects to damage cancerous tumors, a concern has been raised regarding the concomitant use of antioxidant nutrients such as vitamins C and E, selenium and beta-carotene, as they might prove to be protective to cancerous tissue. The current investigation analyzed data from 383 participants in the Physician's Health Study who underwent radiation therapy for prostate cancer. The subjects were randomized to receive 50 milligrams beta-carotene on alternate days or a placebo from 1982 to 2003.
Over a median follow-up of 10.5 years the risk of lethal prostate cancer, defined as prostate cancer death or bone metastases, was similar between those who received the placebo and subjects who received beta-carotene. "The use of supplemental antioxidant beta-carotene during radiation therapy was not associated with an increased risk of prostate cancer death or metastases," the authors concluded. "This study suggests a lack of harm from supplemental beta-carotene during radiation therapy for prostate cancer."
"This study shows that antioxidant supplementation with beta-carotene during radiation therapy does not appear to detract from the benefit of radiation therapy," commented lead author Danielle Margalit, MD, MPH, who is a radiation oncologist at Boston's Dana-Farber Cancer Institute in Boston. "It also suggests that patients may continue to eat a well-balanced diet that contains foods with natural sources of antioxidants at the recommended daily amount."
Stop reinforcing ADHD behavior
Hosted by Michael A. Smith, M.D.
Thursday, October 24 at 3 p.m.
Want to hear some Healthy Talk? Tune in to Dr. Michael Smith's talk show on Thursday, October 24, at 3 p.m. on www.RadioMD.com. You'll learn about a remarkable new book … Parenting Your Child with ADHD, written by Craig B. Wiener, Ed.D. … an Assistant Professor in Family Medicine and Community Health at the University of Massachusetts Medical School and Clinical Director of Mental Health Services at Family Health Center of Worcester.
Dr. Mike and Dr. Wiener will discuss Attention Deficit Hyperactivity Disorder (ADHD) behaviors that become all too frequent due to inadvertent parental reinforcement. You'll learn how to stop reinforcing those behaviors and develop your child's self-reliance and co-operation.
Dr. Wiener has written two other books for professionals on this subject … and now introduces this powerful drug-free approach for stymied parents.
If you or someone you know has a child who has been diagnosed with ADHD, you really don't want to miss this episode of Healthy Talk.