Seed implants have become a widely-accepted treatment option for early stage prostate cancer because it is very effective at curing the cancer, is minimally invasive and often spares patients from side effects of other treatments, such as impotence and incontinence. The seeds, similar in size to a grain of rice, contain a radiation dose that, once implanted, delivers concentrated radiation to the prostate, sparing surrounding organs and tissue.
Doctors in this study evaluated the long-term results of permanent seed implants in men with early stage prostate cancer. Nearly 2,700 men were studied at 11 institutions in the United States over eight years. The radioactive seeds were administered with the aid of ultrasound-guided techniques to accurately place the seeds in the prostate gland. The patients received the seed implants as the sole treatment for prostate cancer with no additional chemotherapy or radiation therapy.
"This study is exciting because it shows that brachytherapy alone without additional surgery, radiation or drugs can be effective at curing early-stage prostate cancer," said Michael J. Zelefsky, M.D., lead author of the study and Chief of Brachytherapy Services at Memorial Sloan-Kettering Cancer Center in New York. "These results also confirm other findings that the quality of the seed implant is a critical ingredient for achieving a better outcome."
Beth Bukata | EurekAlert!
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
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Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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