Articles tagged with Ionizing Radiation
Researchers at Berkeley Lab found evidence of non-linear DNA damage response to low dose radiation, suggesting a non-proportional relationship between dose and cancer risk. The study used time-lapse live imaging to observe the formation of DNA repair centers, which may be an optimal way for cells to deal with sparse damage.
A new study from Rhode Island Hospital found that MR enterography without anti-peristaltic agents is reliable for determining the presence of Crohn's disease and reduces patient exposure to ionizing radiation. MRE may be considered a first-line study for evaluating known or suspected Crohn's disease in young patients.
A new study found a link between low-dose ionizing radiation exposure from cardiac imaging and therapeutic procedures and an increased risk of incident cancer. Patients who underwent more procedures were more likely to develop cancer, particularly in the abdomen and chest areas.
Researchers at Texas AgriLife developed a method to reduce food irradiation levels by cutting them in half. This method uses pure oxygen to kill 99.999 percent of salmonella, E. coli, and other pathogens on fresh produce. The process preserves quality while reducing radiation needed, resulting in safer and more nutritious produce.
The DFG is establishing ten new Research Training Groups to provide doctoral researchers with a structured research and qualification programme. The groups cover topics such as cellular responses to ionising radiation, interactions during market regulation, and psychological development risks in children and adolescents.
A panel of experts addressed safety concerns in medical imaging, highlighting the risks associated with excessive radiation exposure. The Image Wisely initiative aims to educate patients and professionals on the benefits and risks of medical imaging.
A study in JAMA found that multiple cardiac imaging tests are common and associated with a high cumulative estimated radiation dose for patients. The study revealed that myocardial perfusion imaging (MPI) accounts for the highest radiation burden, with many patients receiving doses over 100mSv.
Researchers found that magnetic resonance enteroscopy (MRE) and capsule endoscopy are useful in managing patients with inflammatory bowel disease (IBD) and avoiding ionizing radiation. Studies showed that MRE can effectively diagnose Crohn's disease without exposure to ionizing radiation.
A study found that younger patients, aged 31 and under, have a higher estimated radiation risk associated with abdominal CT scans. The risk is double that of older patients, highlighting the need for clinicians to carefully consider imaging orders based on patient age.
Radiologists and medical physicists have implemented low-dose protocols and tracking systems to reduce cumulative ionizing radiation exposure. The Radiological Society of North America has launched initiatives to raise awareness of radiation risks and explore opportunities to improve patient safety through partnerships with the America...
Researcher Don Luckey suggests that low-dose radiation could be beneficial for human health, citing studies that show improved growth rates, reduced cancer mortality and increased lifespan. He argues that humans have evolved to live with ionizing radiation and that greater exposure would improve our health.
A new study funded by the Defense Department aims to develop a drug based on carbon nanotubes to prevent acute radiation injury deaths. The experimental drug, Nanovector Trojan Horses (NTH), has shown promising results in preliminary tests, with mice showing enhanced protection when given first-generation NTH drugs prior to exposure.
A study estimates that radiation exposure from cardiac CT scans increases the lifetime risk of cancer, with higher risks for women and younger individuals. The study suggests using alternative diagnostic modalities for young individuals and weighing the risks and benefits of each test.
Researchers found zebrafish embryos are sensitive to mid-blastula transition in ionizing radiation, but unaffected by UV radiation prior to this stage. After the transition, UV radiation causes morphologic damage, while ionizing radiation damages DNA due to lack of repair mechanisms.
Researchers found that blocking VEGF can significantly increase the effectiveness of radiation therapy against various types of cancer. The combination of anti-VEGF and radiation resulted in greater tumor reduction and slowed re-growth, even with minimal added toxicity.
Researchers found that brief angiostatin exposure is sufficient to enhance the effects of radiation therapy. The combination of angiostatin and radiation resulted in significantly smaller tumors compared to other treatment groups.
Researchers create ultra-sensitive assay to detect DNA damage caused by ionizing radiation and cancer-causing chemicals, showing potential for early detection and treatment of genetic injuries. The new technique is 10,000 to 100,000 times more sensitive than existing methods.