For patients with rectal cancer, receiving radiation therapy and chemotherapy before surgery to shrink the tumor so it can be more easily removed helps keep the cancer from coming back, according to a study presented October 17, 2005, at the American Society for Therapeutic Radiology and Oncologys 47th Annual Meeting in Denver .
Beginning in 1992, doctors in France enrolled 733 patients suffering from rectal cancer into the study. The patients were split into two groups – the first received radiation alone for five weeks before undergoing surgery to remove the cancer. The second group received chemotherapy in addition to five weeks of radiation therapy prior to surgery.
"The standard treatment for rectal cancer has been radiation therapy alone before surgery, but this is the first randomized study to prove that adding chemotherapy to the treatment helps patients beat their cancer," said Pascale Romestaing, M.D., co-author of the study and a radiation oncologist at CHU Lyon Sud in Lyon, France.
Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena
Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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