Among 166 women being treated for breast cancer, nearly 70 percent had low blood vitamin D, with the lowest levels in those with late-stage disease and in non-Caucasian women, University of Rochester researchers reported. The average level was 27 nanograms per milliliter.
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Breast Cancer
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Lifestyle
Physical activity reduces breast cancer risk
A Polish case-control study of 858 invasive breast cancer patients and 1,085 controls found women whose jobs kept them standing or moving most of the day were 34 percent less likely to have breast cancer than mostly seated women, with a 43 percent gap among postmenopausal women.
Nutrition
National Breast Cancer Awareness Month
A partnership of medical associations and government agencies runs the October campaign, promoting conventional treatment and annual mammograms. The piece counters that the US National Toxicology Program lists diagnostic x-rays as human carcinogens, and points to diet and lifestyle instead.
Lifestyle
More women choosing to have non-cancerous breast removed
New York State data from 1995 to 2005 show prophylactic mastectomies more than doubled, with 6,275 women having the surgery and 81 percent already diagnosed with cancer in one breast. Lead author Stephen Edge says evidence that it prevents recurrence is slim.
Diet
Dietary fiber cuts breast cancer risk in older women
In an NIH-AARP study of 185,598 postmenopausal women followed for seven years, those with the highest dietary fiber intakes were 13 percent less likely to develop breast cancer. The researchers suggest fiber may act by changing how the body handles estrogen.
Lifestyle
Weight lifting benefits breast cancer survivors
In 141 breast cancer survivors with stable arm lymphedema, slowly progressive weight lifting left limb swelling unchanged but halved flare-ups, 14 percent versus 29 percent, while easing symptoms and building strength. No adverse events were tied to the lifting.
Drug
PARP blockers effective in treating hard-to-treat breast cancers
At the ASCO meeting, a study of 116 triple negative breast cancer patients found those given a PARP inhibitor with chemotherapy lived 3.5 months longer than those on chemotherapy alone. An AstraZeneca PARP inhibitor shrank tumors in 41 percent of BRCA mutation carriers.
Food
Breast cancer risk reduced by green tea, mushrooms
In a Chinese study of 1,009 breast cancer patients and 1,009 healthy women, the heaviest mushroom eaters were about two-thirds less likely to have the disease, and those eating dried mushrooms 56 percent less likely. Mushrooms and green tea together showed the strongest association.
Drug
Benefits of mammograms overestimated
Brothers James and John Keen report in BMC Medical Informatics and Decision Making that only about 5 percent of mammograms save lives, against the American Cancer Society's 15 percent, and that 2,970 women must be screened over 15 years to save one life.
Cancer
Breast cancer: What you need to know
After Christina Applegate's breast cancer was found on a routine MRI, the piece reviews prevention research foodconsumer.org has covered, including a study in which female rats fed 250 mg of kelp daily lengthened their cycle 37 percent and cut estradiol 25 percent.
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