Current Radiation News and Events

Current Radiation News and Events, Radiation News Articles.
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Space travel can adversely impact energy production in a cell
Studies of both mice and humans who have traveled into space reveal that critical parts of a cell's energy production machinery, the mitochondria, can be made dysfunctional due to changes in gravity, radiation exposure and other factors. These findings are part of an extensive research effort across many scientific disciplines to look at the health effects of travel into space. (2020-11-25)

Scientists propose to make a laser scalpel with a 'curved' blade
Scientists from Tomsk Polytechnic University and Saratov State University teamed up with colleagues from Taiwan and proposed to make a laser 'blade' for a medical scalpel with a specified curved shape using a photonic 'hook'. (2020-11-20)

Cichlid fishes from African Lake Tanganyika shed light on how organismal diversity arises
Lake Tanganyika in Africa is a true hotspot of organismal diversity. Approximately 240 species of cichlid fishes have evolved in this lake in less than 10 million years. A research team from the University of Basel has investigated this phenomenon of ''explosive speciation'' and provides new insights into the origins of biological diversity, as they report in the journal Nature. (2020-11-18)

UV light may be a greater risk for melanoma than suspected
Studies conducted in yeast show that exposure to ultraviolet light (UV) induces new types of DNA damage that may cause the deadliest form of skin cancer, malignant melanoma. While melanoma has been associated with UV light, this study directly links UV exposure to the atypical mutations known to spread the disease. The results also indicate that UV light can induce a more diverse spectrum of mutations than previously suspected. (2020-11-17)

Diagnostic imaging may increase risk of testicular cancer
Early and repeated exposures to diagnostic imaging, such as X-rays and CT scans, may increase the risk of testicular cancer. (2020-11-11)

Is proton therapy the silver bullet for children with brain cancer?
How safe is proton therapy for children with brain cancer compared to the conventional x-ray radiation delivered post-surgery? (2020-11-11)

3D printed stents that treat inflammation
POSTECH Professor Dong-Woo Cho's research team develops bioink-loaded esophageal stents for treating radiation esophagitis. (2020-11-10)

Perspectives of tumor treatment: Researchers investigate combination of carbon ion and immunotherapy
It is still a glance into the future: The combination of carbon ion and immune therapy could become an effective tool in the fight against cancer. Promising results for the potential benefit of this treatment combination have now been published in the journal ''International Journal of Radiation Oncology, Biology, Physics'' of the American Society for Therapeutic Radiation Oncology. The authors are an international team, led by the Biophysics Department at the GSI Helmholtzzentrum für Schwerionenforschung. (2020-11-09)

Tunable THz radiation from 3D topological insulator
Wu's research group has been investigating a three-dimensional topological insulator of bismuth telluride (Bi2Te3) as a promising basis for an effective THz system. They recently systematically investigated THz radiation from Bi2Te3 nanofilms driven by femtosecond laser pulses. (2020-11-02)

A versatile photodetector assisted by photovoltaic and bolometric effects
A versatile photodetector based on MoTe2/VO2 heterostructure integrates photovoltaic and bolometric effects. The photodetector can realize three different functional modes including p-n junction, bolometer and Schottky junction, satisfying the demand of ultrasensitive and ultrabroad spectrum response, showing great potential in advanced photodetector. (2020-11-01)

Microbes in the gut could be protective against hazardous radiation exposure
A study by scientists at UNC Lineberger Comprehensive Cancer Center and colleagues showed that mice exposed to potentially lethal levels of total body radiation were protected from radiation damage if they had specific types of bacteria in their gut. They demonstrated that the bacteria mitigated radiation exposure and enhanced the recovery of blood cell production as well as repair of the gastrointestinal tract. (2020-10-30)

Sexual health often overlooked in cancer survivorship care, especially for female patients
A new study points to a need for oncologists to ask their patients about sexual health after chemotherapy, radiation and other cancer treatments. In a survey of nearly 400 cancer survivors, 87% said they experienced sexual side effects, but most also said their oncologist had not formally asked about them. Female patients were especially unlikely to be asked about sexual dysfunction. Findings will be presented at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-30)

Towards next-generation molecule-based magnets
Magnets are to be found everywhere in our daily lives, whether in satellites, telephones or on fridge doors. However, they are made up of heavy inorganic materials whose component elements are, in some cases, of limited availability. Now, researchers from the CNRS, the University of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble) have developed a new lightweight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties. (2020-10-29)

Direct observation of a single electron's butterfly-shaped distribution in titanium oxide
A research team led by Nagoya University has observed the smeared-out spatial distribution of a single valence electron at the centre of a titanium oxide molecule, using synchrotron X-ray diffraction and a new Fourier synthesis method also developed by the team. The method can determine the orbital states in materials regardless of their physical properties and without the need for difficult experiments or analytical techniques. The work was published recently in Physical Review Research. (2020-10-28)

Validation of ERCC1/2 signature as radiosensitivity biomarker for tumor & normal tissues in NSCLC
A genetic analysis of non-small cell lung cancer (NSCLC) patients on the phase III NRG Oncology RTOG 0617 clinical trial assessing radiation dose discovered that high dose radiation therapy is associated with shorter survival times among patients with a radiation-sensitive genotype in DNA repair pathway. These findings were presented at the virtual edition of the American Society for Radiation Oncology's (ASTRO) Annual Meeting in October 2020. (2020-10-28)

Cancer treatment without side effects?
Treating cancer without debilitating side effects has long been the holy grail of oncologists, and researchers at the University of California, Irvine and Switzerland's Lausanne University Hospital may have found it. (2020-10-27)

Penn Study supports use of radiation before CAR therapy for multiple myeloma
Administering radiation therapy to multiple myeloma patients waiting for CAR T cells to be manufactured was found to be safe and undisruptive to CAR T therapy. (2020-10-26)

MFS Is a strong surrogate endpoint for OS for men receiving salvage RT for recurrent prostate cancer
An analysis of the phase III NRG Oncology clinical trial RTOG 9601 on men receiving salvage radiotherapy (SRT) following prostatectomy for recurrent prostate cancer indicated that, while biochemical failure (BF) was not a strong surrogate endpoint to determine overall survival (OS), metastasis-free survival (MFS) was in this patient population. (2020-10-26)

Group trial bolsters case for stereotactic radiation for tumors that travel to the lungs
A new study, conducted across 13 medical centers in Australia and New Zealand, strengthens the case for radiation therapy as a treatment for cancer that has begun to spread throughout the body. Findings of the SAFRON II trial (NCT01965223) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

Treating spinal mets with fewer, higher doses of radiation reduces pain more effectively
A new study shows using fewer and higher doses of high-precision radiation therapy is a more effective approach for treating painful spinal tumors than conventional radiation therapy. Findings from the Canadian phase II/III trial (NCT02512965) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

Radiosurgery reduces cognitive decline without compromising survival for pts with 4+ brain mets
Results of a new randomized phase III trial suggest that stereotactic radiosurgery (SRS) should replace whole brain radiation therapy (WBRT) as the standard of care for patients with four or more brain metastases. Results from the clinical trial (NCT01592968) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

Adding advanced PET scans to radiation plans for prostate cancer increases FFS rates
Adding the advanced PET radiotracer fluciclovine to conventional imaging to help guide radiation treatments for recurrent prostate cancer can improve disease-free survival rates, a new study finds. Findings from the randomized phase II/III EMPIRE-1 trial (NCT01666808) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

Effectiveness of gemcitabine & daily RT for bladder preservation in muscle-invasive bladder cancer
Bladder preservation with trimodality therapy can be a safe and effective alternative to cystectomy for selected patients with muscle-invasive bladder cancer. The phase II NRG Oncology NRG-RTOG 0712 trial evaluated two regimens. One was the prior RTOG standard using 5-flourouracil and cisplatin with twice daily radiation (FCT), and the other a regimen of gemcitabine and daily radiation (GD) which had demonstrated efficacy in single institution clinical trials. (2020-10-26)

Photon IMRT treatment group displays no significant survival difference between arms
A preliminary analysis of photon therapy treatment group 1 from the phase II NRG Oncology clinical trial NRG-BN001 indicates that there is no statistically significant overall survival (OS) or toxicity differences between dose-intensification radiation therapy (DI-RT) using intensity-modulated radiation therapy (IMRT) and standard-dose radiation therapy (SD-RT) with temozolomide treatments for patients with newly diagnosed glioblastoma (GBM). (2020-10-26)

ASTRO: Proton therapy for lung cancer may help reduce risk of heart diseases
Treating lung cancer patients with proton therapy may help reduce the risk of radiation-induced heart diseases. (2020-10-23)

ASTRO highlights Winship study showing increased failure-free survival in prostate cancer
The EMPIRE-1 trial is the first randomized trial of men with prostate cancer with recurring cancer to show that treatment based on advanced molecular imaging can improve disease-free survival rates. (2020-10-23)

ASTRO issues clinical guideline on radiation therapy for rectal cancer
A new clinical guideline from the American Society for Radiation Oncology (ASTRO) provides guidance for physicians who use radiation therapy to treat patients with locally advanced rectal cancer. Recommendations outline indications and best practices for pelvic radiation treatments, as well as the integration of radiation with chemotherapy and surgery for stage II-III disease. The guideline, which replaces ASTRO's 2016 guidance for rectal cancer, is published in Practical Radiation Oncology. (2020-10-21)

Radiation oncology research and clinical trials to be featured at ASTRO's Annual Meeting
The American Society for Radiation Oncology (ASTRO) announced today the press program for its 2020 Annual Meeting, which will feature studies on cancer treatment advances and discussions of topical issues including COVID-19. Researchers will present their findings via live webcasts on October 26 and 27. Register for press access at www.astro.org/annnualmeetingpress. (2020-10-14)

A new protein discovered that repairs DNA
Our cells have DNA repair systems to defend themselves against this sort of damage. One of these systems is based on a protein, photolysis, which uses blue light to repair DNA damage before it leads to mutations. (2020-10-14)

Graphene detector reveals THz light's polarization
Physicists have created a broadband detector of terahertz radiation based on graphene. The device has potential for applications in communication and next-generation information transmission systems, security and medical equipment. (2020-10-08)

The propagation of admixture-derived evolutionary potential
Adaptive radiation - the rapid evolution of many new species from a single ancestor - is a major focus in evolutionary biology. Adaptive radiations often show remarkable repeatability where lineages have undergone multiple episodes of adaptive radiation in distant places and at various points in time - implying their extraordinary evolutionary potential. (2020-10-07)

New research explores how super flares affect planets' habitability
New research from the University of North Carolina at Chapel Hill will help astrobiologists understand how much radiation planets experience during super flares and whether life could exist on worlds beyond our solar system. (2020-10-07)

On the trail of causes of radiation events during space flight
Scientists have made significant progress in understanding the sources of radiation events that could impact human space-flight operations. Relativistic Electron Precipitation (REP) events are instances when high energy electrons move through areas of space at significant fractions of the speed of light. These REP events may pose challenges to human spaceflight, specifically during extravehicular activity (EVA). (2020-10-05)

New tools improve care for cancers that spread to the brain
The UVA team says its findings will help doctors and patients make better-informed treatment decisions, enhance the care of brain metastases, and enable hospitals to improve the coordination and effectiveness of their interdisciplinary treatment programs. (2020-10-05)

Tunable free-electron X-ray radiation from van der Waals materials
The suggested apparatus produces controlled radiation with a narrow spectrum that can be tuned with high resolution, at a relatively low energy investment. The findings are likely to lead to breakthroughs in a variety of fields, including the analysis of chemicals and biological materials, medical imaging, X-ray equipment for security screening, and other uses of accurate X-ray sources (2020-10-01)

Sensor with 100,000 times higher sensitivity could bolster thermal imaging
Army-funded research developed a new microwave radiation sensor with 100,000 times higher sensitivity than currently available commercial sensors. Researchers said better detection of microwave radiation will enable improved thermal imaging, electronic warfare, radio communications and radar. (2020-10-01)

Molecules responsible for radio-resistant glioblastoma identified
Scientists have identified key molecules that mediate radioresistance in glioblastoma multiforme; these molecules are a potential target for the treatment of this brain cancer. (2020-09-30)

Not all patients are offered the same effective breast cancer treatment
Socioeconomic status and race could play a role in treatment decisions, according to new research. (2020-09-30)

High-fibre diet, low level inflammation: sidestepping the effects of radiation
Loved or hated, the humble oat could be the new superfood for cancer patients as international research shows a diet rich in fibre could significantly reduce radiation-induced gut inflammation. (2020-09-29)

What membrane can do in dealing with radiation
USTC recently found that polymethylmethacrylate (PMMA) and polyvinyl chloride (PVC) can release acidic substance under γ radiation, whose amount is proportional to the radiation intensity. (2020-09-27)

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