Regular exercise shown to help protect against breast cancer
REGULAR exercise could help prevent breast cancer. In the
this week, researchers report that girls and young women who exercise regularly between the ages of 12 and 35 are less likely to be diagnosed with breast cancer before menopause compared to those who are less active. A total of 64,777 women aged 24 to 42 were surveyed about their level of physical activity from the age of 12 to their current age. During the following six years, 550 of these women developed breast cancer. Those with high activity levels — equivalent to 3.25 hours running or 13 hours walking per week— were 23 per cent less likely to develop breast cancer than less-active women. Regular exercise between the ages of 12 and 22 had the greatest protective effect.
JournaloftheNationalCancer JNatlCancerInst 2008;doi:10.1093/jnci/djn135 (MarutiSS,etal) BREASTFEEDING isn’t only good for babies, according to a new study in the
. The authors found that
Annalsofthe women who have breastfed for more than a year have half the risk of rheumatoid arthritis compared to women who have never breastfed. Rheumatoid arthritis (RA) is a painful inflammation of the joints caused by the body’s own immune system. The study included 136 women with RA and 544 women of a similar age without the disease. Compared to women who had never breastfed (regardless of whether or not they had children), those who had breastfed for a total of 13 months or more were 54 per cent less likely to have RA. Those who had breastfed for 1-12 months were 25 per cent less likely to develop the disease. Ann Rheum Dis 2008;doi:10.1136/ard.2007.084707 (Pikwer M, et al)
LOSING teeth could be an early warning sign
of cancer, claims a new study in
. The study shows a strong link between tooth loss and increased risk of some types of cancer. The findings suggest that preserving teeth could decrease the risk of developing these diseases, and show the importance of good oral hygiene to overall health. Researchers compared tooth loss in 5240 Japanese cancer patients and 10,480 healthy controls. People with tooth loss were 136 per cent more likely to develop esophageal cancer, 68 per cent more likely to develop head and neck cancer and had a 54 per cent increased risk of lung cancer, regardless of whether or not they smoked. The risk of cancer increased proportionally to the number of teeth that had been lost. Cancer Epidemiol Biomark Prev 2008;17 (Hiraki A, et al) WOMENat high risk of breast cancer should be given an ultrasound as well as a mammogram to better detect cancer in its early stages, suggests a new study in the
. The study found that adding a single ultrasound screening test to routine mammography would pick up an extra 1.1 to 7.2 cancers per 1000 high-risk women. Ultrasound is more effective than mammography at detecting small tumours that have not yet spread to the lymph nodes — the stage at which treatment is usually most effective. Scientists studied the effectiveness of mammography plus ultrasound compared to mammography alone in detecting breast cancer in 2637 women at high risk of the disease. Mammography alone detected breast cancer in 20 women, whereas mammography plus ultrasound picked up 31. JAMA 2008;299:2151-2163 (Berg WA, et al) BREAST cancer survivors often suffer from hot flushes and sleep deprivation, but a new study in has shown that an injection into the nerves of the neck that control temperature — a stellate ganglion block’’ — could provide long-term
‘‘ relief. The pilot study involved 13 breast cancer survivors with severe hot flushes, each of whom was treated with a stellate ganglion block. For one week before the procedure and 12 weeks after, participants recorded the number and intensity of hot flushes and the number of sleep disturbances. Over the 12-week period the number of hot flushes decreased from an average of 79.4 per week to just 8.1 per week. Night awakenings also decreased, from 19.5 to 1.4 per week, and there were no negative side effects from the treatment. Lancet Oncol 2008;doi:10.1016/S1470-2045(08)701311 (Lipov EG, et al)
Want to know more? Items are referenced where possible. A reference such as 2007;35:18-25’’ means the source article was published on pages 18-25 in volume number 35 of the publication, in 2007. A doi number or website address is used for research published on a journal’s website.