Tamoxifen alone may adequately control breast cancer, avoiding side effects
Older women treated with tamoxifen after removal of early-stage breast cancer by lumpectomy may safely be able to avoid radiation therapy and its unpleasant side effects. In the Sept. 2 New England Journal of Medicine, investigators from several major cancer research groups report that adding radiation to post-surgical tamoxifen treatment of women age 70 or older does not improve survival, has minimal impact on the risk of local tumor recurrence and does not prevent the need for eventual mastectomy. “If a patient does not need to have radiation therapy, her quality of life can improve significantly,” says Kevin Hughes, MD, of the Massachusetts General Hospital (MGH) Cancer Center, who led the study. “By showing that radiation therapy has very little impact on outcome for these patients, we can help each woman and her physician decide on the right treatment.”
Many breast cancers depend on the hormone estrogen to grow. So tamoxifen, which blocks the interaction between estrogen and its receptor protein, is used to treatment tumors that have that protein on the surface of their cells. Most older breast cancer patients have receptor-positive tumors and receive tamoxifen, a medication that has few side effects.
Sue McGreevey | EurekAlert!
25.07.2017 | Vanderbilt University
Flexible proximity sensor creates smart surfaces
25.07.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers
Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...
Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.
At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...
3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects
A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
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