Articles tagged with Radiation
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A new study finds that high-dose radiation therapy can lengthen progression-free survival for people with advanced lung cancer when systemic therapy has not fully halted tumor growth or spread. Stereotactic body radiation therapy (SBRT) shows promise in treating oligoprogressive, metastatic lung and breast cancer.
Researchers at H. Lee Moffitt Cancer Center & Research Institute use computer modeling to study the relationship between tumor-immune environment and radiation response. They discover that tumor cells will either escape immune predation or be eradicated based on the numbers of immune effector and suppressor cells present. The model hel...
Researchers identified ALRs as key genetic factors influencing treatment response to radiation and chemotherapy. Cells deficient in ALRs are more resistant to radiation and chemotherapy, while those with higher ALR levels are more sensitive.
Pediatric oncologist Adam Green and his team have discovered genetic mutations that may predict the development of these secondary tumors, allowing for early detection and alternative treatments. They are also exploring FDA-approved chemotherapy drugs as potential treatments.
A Dartmouth research team has been selected to present their abstract on a new advancement in Cherenkov imaging at the ASTRO Annual Meeting. The work, which involves designing a color-sensitive camera to image Cherenkov emission from patients, allows for more accurate quantification of radiation delivery and safe treatment.
Researchers found that buttes on Mars can block about 20% of radiation from the sky, reducing the dose by a significant amount. However, this effect is limited by albedo radiation, which increases when the terrain reflects and emits radiation backwards.
Researchers from Cleveland Clinic have published results showing that Temporally Feathered Radiation Therapy (TFRT) is a safe and feasible approach to reduce toxicity in radiation treatment. The technique optimizes radiation delivery time to improve normal tissue recovery, potentially improving patient quality of life.
Researchers at Oak Ridge National Laboratory are advancing various technologies to minimize oil leaks, enable 3D printing in space, and increase fuel efficiency from ethanol. They have developed a quantum sensing system to detect pipeline leaks more quickly, built a thermal protection shield for a capsule launched into space, and creat...
A new clinical guideline from ASTRO provides guidance on the use of radiation therapy to treat adult patients with soft tissue sarcoma, recommending optimal radiation dosing and techniques. The guideline also addresses the role of radiation therapy for retroperitoneal sarcomas.
A study by Environmental Working Group (EWG) recommends stringent health-based exposure standards for radiofrequency radiation emitted from wireless devices. EWG suggests that children's exposure should be 200 to 400 lower than the whole-body exposure limit set by the FCC in 1996.
A WVU researcher led a task group to develop guidelines for reducing data transfer errors in radiation therapy. The measures aim to safeguard against medical errors in treatments that over half of all cancer patients receive.
Researchers developed a novel treatment using stereotactic ablative radiation (SABR) to deliver high doses of radiation to tumor vein extensions. The approach has shown promise in reducing metastases and improving patient outcomes.
Researchers discover that children with average risk medulloblastoma can receive a smaller volume of radiation boost without reducing survival rates. However, reducing the dose of radiation given to the whole brain and spine over six weeks had a negative impact on survival.
A study by Princess Margaret researchers found that AI-generated radiation treatments were deemed clinically acceptable for patients in most cases, with 89% of ML-treatments preferred over human-generated ones. However, physician preferences changed when actual treatment was at stake, reducing the use of ML-generated treatments to 61%....
Researchers at University College London have pioneered a single-dose radiotherapy approach for breast cancer treatment that is as effective as traditional radiotherapy and avoids potential damage to nearby organs. The treatment, TARGIT-IORT, has been shown to reduce the risk of fatal cardiovascular disease and other cancers in patients.
A review of virtual reality training programs found that they can elicit empathetic behavior in medical radiation technologists, improving patient-centered care. The study suggests VR may be an effective tool for learning care recipients' perspectives and controlling biases in future research.
A new study led by UT Southwestern scientists shows that an experimental drug, avasopasem manganese (AVA), enhances radiation's capacity to kill tumors while protecting healthy tissue from collateral damage. The findings could provide a much-needed boost to radiation treatments used against various tumor types.
A recent Baycrest-Sunnybrook pilot study found that low-dose radiation therapy showed remarkable improvements in behavior and cognition within days in individuals living with severe Alzheimer's. The treatment used a CT scanner to deliver low doses of radiation, stimulating the body's natural protection systems to work harder.
The review highlights focused, high-dose radiation's potential to destroy small tumors with minimal impact on surrounding normal tissue. Researchers aim to tailor radiotherapy to optimize benefits and minimize risks through advanced techniques like stereotactic body radiation therapy and radiosurgery.
Researchers developed a link discovery method using terahertz radiation, enabling the detection of non-line-of-sight (NLOS) paths in wireless communications. The study reveals that transmitters with strong angular dispersion can exploit NLOS links to provide faster connectivity.
Researchers at Massachusetts General Hospital develop a new radiation technique that carefully targets tumors while sparing surrounding tissues, reducing inflammation and preserving swallowing function. The study shows promising results in patients with localized lung cancer, with none developing severe esophagitis despite high-dose ra...
Researchers found that regulatory T cells are silencing T cells in cold tumors, leading to reduced immune response. Using medication to deactivate Tregs and radiation treatment can help boost immune response.
Researchers are developing new conditioning therapies with fewer side effects, targeting specific proteins on hematopoietic stem cells to make room for healthy ones. This could lead to more patients being able to safely undergo stem cell treatments, reducing complications and improving outcomes.
Researchers have developed a novel method to detect and manipulate the terahertz optoacoustic signal of water, enabling sensitive detection of solutes like ions with an order of magnitude greater sensitivity than traditional spectroscopy. This breakthrough allows for nondestructive analysis of aqueous solutions and tissues, opening up ...
Researchers aim to create diamond windows that can withstand high levels of radiation, a crucial step towards building safer fusion reactors. The University of Tartu's three-year project involves partnerships with German and Latvian institutions to develop materials and technologies necessary for the DEMO reactor.
A phase 2 clinical trial found that brentuximab vedotin achieved excellent outcomes in high-risk pediatric Hodgkin lymphoma patients, with a three-year survival rate of 99% and reduced radiation exposure. The targeted therapy also minimized side effects, particularly neuropathy.
Researchers have created the first in-vitro patient-derived 3D organoid models of nasopharyngeal cancer, enabling them to predict optimal radiation treatment doses. These models mimic the hypoxic radioresistant sub-volumes of recurrent NPC and have shown that radiation dose escalation can improve treatment outcomes.
Researchers found that fat grafting procedures can reduce pain and improve skin health in patients with radiation-induced skin injury, leading to better outcomes and improved quality of life. However, more research is needed to confirm the benefits and address potential risks.
Scientists from Lancaster and Manchester Universities have received a £1.49 million grant to research the use of robots for nuclear decontamination. The ALACANDRA project aims to improve the interpretation of robot-derived information from complex, cluttered spaces contaminated with dispersed radioactivity.
Researchers discovered that ferulic acid primed stem cells can repair bone damage caused by radiation. The study found that FA enhances the bone repair effects of skeletal stem cells by activating specific pathways, making it a potential novel strategy in treating irradiated bone injury.
Researchers investigated the use of lithium chloride to promote restoration of oral mucosa integrity and taste function after radiation. The study found that LiCl alleviated weight loss and tongue ulceration while promoting epithelial cell proliferation and inhibiting transition in tongue mucosa.
Using numerical modeling of cough droplets' diffusion produced by coughs, researchers in Italy explore deactivating COVID-19 virus particles via UV-C light. They found that 1 meter of social distancing is not completely safe to avoid virus transmission, while 2 meters can reduce the risk by about 50%.
Researchers at PNNL develop new detection method for ultra-trace elements like uranium and thorium, allowing for precise measurement in valuable metals like gold. The technique enables detection limits as low as 10 parts per trillion in gold, revolutionizing the semiconductor industry and sensitive particle detection.
A new study using AI to examine the fossil record found that mass extinctions rarely create productive periods of species evolution, or 'radiations,' contrary to traditional ideas. Instead, the study suggests that many remarkable times of evolutionary radiation occurred when life entered new environments.
Researchers found that women with low levels of senescence-associated secreted phenotypes (SASPs) had higher survival rates than those with high levels. Brachytherapy greatly improved survival in patients with high SASP levels, but had little impact on those with low levels.
Researchers studied the effects of long-duration space flight on telomere length and DNA damage in a group of 10 astronauts, finding evidence of oxidative stress and individual differences in responses. The study suggests that telomeres may be affected by chronic oxidative stress during spaceflight.
Researchers found that space travel can make cellular mitochondria dysfunctional due to changes in gravity, radiation exposure, and other factors. This has significant implications for future space travel and medical science on Earth.
A new study has identified two types of bacteria that can provide protection against radiation exposure by increasing production of propionate and tryptophan. These metabolites were found in leukemia patients undergoing radiotherapy, suggesting a potential alternative to expensive and potentially harmful treatments.
The study found that patients with a radio-sensitive genotype have better survival with standard radiation therapy, while those with the resistant genotype fare better with high dose radiotherapy. High dose radiotherapy is associated with shorter survival times among patients with the sensitive genotype.
A survey of nearly 400 cancer survivors found that 87% experienced sexual side effects, but most were not formally asked by their oncologist. Female patients were particularly unlikely to be discussed with. Researchers recommend using a standard questionnaire to initiate conversations and improve patient experience.
A phase II trial shows similar safety and efficacy with single- and multiple-fraction treatment for patients with limited oligometastases. The study found comparable survival rates, local control rates, and disease-free survival rates between the two treatment groups.
A randomized phase III trial found that image-guided intensity modulated radiation therapy (IMRT) improves long-term toxicity-free survival and reduces gastrointestinal side effects in women with cervical cancer. The study showed a significant reduction in moderate-to-severe gastrointestinal side effects compared to 3D-CRT, with improv...
The NRG-RTOG 0712 trial demonstrated high efficacy rates for both gemcitabine and daily radiation regimens, with 79% and 85% distant metastasis-free rates at 3 years, respectively. The findings confirm the acceptance of these treatments as alternatives to cystectomy.
A new Penn study found administering radiation therapy to multiple myeloma patients waiting for CAR T cells to be manufactured was safe and did not interfere with cellular therapy. Patients who received radiation 34 days or fewer before infusion had similar rates of severe side effects as those who did not receive radiation.
A randomized phase III trial found that stereotactic radiosurgery reduces cognitive decline without compromising survival for patients with four or more brain metastases. Patients who received SRS had better preserved cognitive function compared to those who received whole-brain radiation therapy.
A randomized phase II/III trial found that SBRT reduced pain in patients with spinal metastases by 35% after three months, compared to 14% for conventional radiation. Patients treated with SBRT also experienced higher satisfaction rates related to financial considerations.
The new guideline provides options for different treatments to improve survival rates and quality of life for patients with locally advanced rectal cancer. Recommendations address patient selection, pelvic radiation treatments, integration with chemotherapy and surgery, and follow-up care.
The American Society for Radiation Oncology (ASTRO) will highlight groundbreaking studies and discussions on cancer treatment advances, COVID-19, and racial representation in radiation therapy clinical trials at its upcoming Annual Meeting.
A high-fibre diet has been found to offset chronic gastrointestinal damage caused by radiotherapy, reducing radiation-induced inflammation in the digestive system. This contradicts long-held clinical recommendations that advise a restricted fibre diet for cancer patients undergoing radiotherapy treatment.
Research reveals continuous loess deposition over the past 3.6 million years, indicating a dry climate and desert conditions in midlatitude Asia. Global cooling is linked to this aridity, intensifying westerly winds and enhancing dust production.
Researchers found that targeting purine metabolism can disrupt DNA repair and increase sensitivity to radiation, offering a new approach to overcome resistance. A clinical trial is planned to test the effectiveness of an FDA-approved drug in human patients.
Bob May, Jefferson Lab ES&H Deputy Director, has been named a fellow of the Health Physics Society for his 40-year career in health physics. He is recognized for his significant contributions to radiation safety and administration within the field.
A new Oregon State University study using zebrafish found no significant health impacts from 5G radiofrequency radiation. Researchers exposed embryonic zebrafish to 3.5 GHz radiation and observed a modest impact on sound response, highlighting the need for further investigation.
Researchers developed a highly effective and safe nanocrystal to combat deadly radiation, increasing survival rates and reducing oxidative stress by five times compared to individual components.
The American Society for Radiation Oncology (ASTRO) has released its first clinical guideline on radiation therapy for cervical cancer. The guidelines address indications and best practices for external beam radiation therapy and brachytherapy in postoperative and definitive settings, including the use of chemotherapy and IMRT.
Photodynamic therapy has been shown to be effective in treating localized tumors, including ovarian cancer, through the introduction of photosensitizers that selectively accumulate in tumor tissue, producing singlet oxygen and other active radicals to destroy cells.
Glioblastoma cells acquire radiation resistance by dumping exosomal microRNA miR-603, leading to increased protein production and insensitivity to radiation. This study reveals a new therapeutic strategy for overcoming cancer cell resistance.
Researchers developed a post-processing algorithm to increase the quality of reconstructed CT images while reducing noise and radiation exposure. The new method enhances tissue discrimination by 60%, enabling better decision-making for further treatments.
Researchers at UCLA have found that adding a schizophrenia drug to traditional radiation therapy improved overall survival in mice with glioblastoma. The combination successfully delayed tumor growth and prolonged animal survival by over 200 days.
Researchers have developed a method using phononic crystals to generate tunable, time-variant sound fields that can trap and transport particles and cells in microchannels. This technology has potential applications in display technology, biomedical sensors, and diagnostic tools.