Scientists at the University of Illinois discovered a newly recognized hazard in rare volcanic eruptions, characterized by wavy and scalloped umbrellas. The unusual plume behavior, fueled by steam and ash, could lead to unexpected and dangerous ash flows that spread rapidly over surrounding areas.
Researchers discover that excessive amyloid-beta toxicity leads to functional heme deficiency, causing mitochondrial decay and oxidative damage. A new class of targeted drugs could soon be developed to address this underlying mechanism.
A recent study found that many sodas and energy drinks contain high levels of caffeine, posing health risks for certain individuals. The FDA recommends a maximum of 65 milligrams per serving, but some energy drinks have up to 141 milligrams, more than double the limit.
A prospective study of Turkish villagers found a significant association between long-term erionite exposure and an increased risk of developing pleural mesothelioma. The study, conducted over 23 years, revealed annual incidence rates significantly higher in erionite-exposed villages compared to a control village.
Using computer simulations, researchers found that linked and unlinked DNA loops can be identified by their touching points. This discovery has implications for designing new drugs to treat cancer and infectious diseases.
Researchers studied the retreat of a massive Scandinavian Ice Sheet to gain insights into its dynamics and potential implications for Greenland and Antarctica. The study found that ice sheets in different parts of the world can react differently to global warming, with some growing larger while others rapidly disappear.
A landmark trial found that carotid stenting significantly reduces the risk of stroke in asymptomatic patients with carotid artery disease, with a lower rate of major complications compared to medical therapy. The study also showed better outcomes for younger patients and no increased risk of undetected complications.
A virtual classroom was found to be superior to a traditional one in teaching medical students to identify heart sounds, with accuracy rates increasing from 32% to 81% after intensive repetition. The study, led by Michael Barrett, suggests that cardiac auscultation can be mastered through online training.
A recent study found that fondaparinux significantly reduces the risk of death and reinfarction in patients with STEMI, with benefits observed at 30 days, 9 days, and study end. The treatment also showed a tendency to fewer severe bleeding events.
Researchers found a higher frequency of genus beta type HPV antibodies in patients with squamous cell carcinoma (SCC) than control subjects, especially HPV 5. No association was found between HPV and basal cell carcinomas.
The UK Biobank project is a revolutionary research undertaking that will gather and store vast amounts of medical data from 40,000 to 69-year-old volunteers. Researchers hope to identify more reliable reasons for why some people develop specific diseases and others do not.
Two recent papers by Pitt physicist demonstrate the existence of electrons stuck on metal surfaces under intense light, enabling total internal reflection. This phenomenon could lead to faster and smaller transistors and more efficient conversion of light into chemical energy.
Research shows that high-risk hypertensive patients are frequently prescribed antihypertensive therapy but rarely receive concomitant statin therapy. Despite the potential to significantly reduce cardiovascular risk, over half of these patients do not receive cholesterol-lowering statins during their first year of treatment.
A study of 3,297 elderly residents found that medications prescribed for high blood pressure were associated with a significantly lower risk of developing Alzheimer's disease. Potassium-sparing diuretics showed the strongest link to reduced AD incidence, with increased potassium levels potentially playing a role.
The Women's Bioethics Project has received a grant from the Ford Foundation to organize a bioethics seminar for women state legislators. The seminar aims to prepare these leaders to tackle emerging issues in healthcare and biotechnology.
A study suggests that increasing access to antiretroviral therapy (ART) in resource-poor countries may not reduce HIV infection rates, but rather increase transmission due to prolonged survival and increased sexual activity. Counseling patients and promoting safe sex practices are crucial in preventing the spread of the virus.
Temporary esophageal stenting is a new alternative to surgery for correcting esophageal perforations, which can occur during atrial fibrillation ablation procedures. This non-invasive method has been shown to be effective in healing the esophagus without surgery.
Dr. Larry Kricka's work on chemiluminescence, bioluminescence, and analytical microchips has revolutionized clinical analysis, enabling point-of-care testing and bio-terrorism detection. His research also led to the development of miniaturization techniques for DNA analysis, fertility testing, and immunoassay analysis.
A study of Roux-en-Y gastric bypass surgery found lower rates of heart complications, diabetes, and improved cholesterol levels compared to a control group. The surgery was estimated to prevent 16.2 cardiovascular events and 4.1 deaths per 100 patients.
Researchers found that early placement of cardiac resynchronization therapy devices can prolong patient lives and reduce rehospitalizations. The study analyzed data from 5,791 patients and showed a significant reduction in deaths and rehospitalizations among those who received the devices.
Researchers create patterned magnetic films using Permalloy and cobalt, with dots measuring 100 nanometers in size. The team uses a state-of-the-art TEM to map the magnetic properties of each dot, enabling precise control over spin orientation and switching mechanism.
Researchers have discovered two new sources of stem cells with high cardiomyogenic potential, derived from menstrual blood and umbilical cord blood. These findings suggest that these cells may be able to repair or replace damaged cardiac muscle, offering a promising treatment option for heart dysfunctions.
Researchers identified a genetic network in yeast that guards against lethal DNA damage, which could lead to new therapies for human diseases such as cancer and aging. The study used a technology called dSLAM to map the interactions between genes involved in DNA repair, replication, and cell cycle progression.
The CYPHER stent demonstrated significant lower rates of target vessel failure, repeat revascularization, and major adverse cardiac events compared to bare metal stents. Patients at high-risk for re-blockage also showed improved outcomes without 'late catch-up' in restenosis.
Researchers discovered that a protein called MEF regulates the quiescence of blood stem cells, enabling them to recover more efficiently after treatment with chemotherapy or radiation. This could lead to improved recovery and reduced myelotoxicity in cancer patients.
A Harvard Medical School study found that faxing alerts to physicians about patient non-adherence to antidepressants did not increase medication adherence rates. The study, which assessed over 13,000 patients starting treatment with antidepressants, suggests that other complementary interventions are needed to improve compliance.
Researchers found that a low-sodium, high-potassium salt substitute significantly lowered blood pressure in rural China residents at risk of heart complications. The study suggests this simple approach could cut stroke and cardiovascular disease risks.
A study identifies molecular subclasses of high-grade gliomas that correlate with disease progression and prognosis. The subtypes resemble stages in neurogenesis, suggesting new insights for therapeutic intervention.
Frequent marijuana use leads to deteriorated cognitive functions, particularly in remembering new information. Long-term users showed significant impairment in cognitive abilities compared to non-users, with more severe decline over time.
The ISAR-REACT 2 Trial found that abciximab significantly reduced the risk of death, heart attack, and ischemic complications in patients with non-ST-segment elevation ACS undergoing PCI. The study also showed no significant difference in bleeding risks between the two groups.
Researchers found that cytotoxic T lymphocytes (CTLs) kill only a fraction of infected cells, with most deaths attributed to other factors. The study suggests that CTL-based vaccines may not prevent or clear HIV infection and could control the number of infected cells instead.
A small team of researchers from Johns Hopkins University Applied Physics Laboratory developed a novel radiator using MicroElectroMechanical Systems (MEMS) technology, which can regulate the temperature of a satellite or one of its instruments. The device is designed to control emissivity and maintain constant temperatures in space.
Researchers at University of Pennsylvania develop method to create world's smallest and cleanest nanometer gaps that can be imaged directly with atomic resolution. These nanogaps enable electrical connection to small objects, such as individual molecules, with applications in medicine, robotics, materials science, and security.
Recent studies have improved safety and effectiveness in treating patients with acute coronary syndromes, enhancing the management of cardiovascular disease. These advancements include innovative therapies such as bivalirudin and pexelizumab, which aim to reduce major bleeding risks while maintaining efficacy.
A study found that prescription monitoring programs can reduce problematic use of benzodiazepines but also decrease access to appropriate treatment for patients with chronic illnesses. Racial disparities in access to effective care were exacerbated by these policies, highlighting the need for re-examining health policy impacts.
Researchers from Thomas Jefferson University Hospital tested a new device to close Patent Foramen Ovale (PFO) holes, finding it effective in sealing the opening and preventing recurrent strokes. The study used the Cardia PFO closure device, which was successful in closing PFOs in 89 out of 90 patients.
A study published in Archives of Neurology found that cognitive impairment is common in ALS patients, affecting 30% of those studied. Nearly a quarter (23%) of these patients met criteria for dementia, with no significant differences in demographic or disease severity observed.
A recent study published in the Journal of Youth and Adolescence found that body image plays a significant role in shaping sexual risks taken by men and women. The research suggests that young women with positive body images are less likely to engage in risky behaviors, while young men with positive body images may actually be more lik...
Researchers aim to offer protection to immunocompromised patients without unnecessary vaccination. They will measure T cell and B cell counts to determine which patients benefit from an influenza vaccine, with potential customized treatment recommendations for each group.
A new model by Imperial College London researchers suggests that anti-HIV drugs alone are unlikely to stop the spread of HIV and may even increase infection rates due to improved health and behavior, highlighting the importance of prevention initiatives.
A University of Minnesota study found that telephone support for smokers was more effective in helping them quit than standard medical care. The study, published in Archives of Internal Medicine, showed that 40% of participants who received telephone support had not smoked in the previous seven days after three months.
A survey of 2,461 diabetes patients found that many had a less-than-accurate view of healthy body weight. Women were more likely to correctly identify a normal BMI range as healthy, while men and obese individuals often overestimated their ideal weights.
The five-year grant will enable large-scale imaging studies on brain disease and illness, improving collaboration among researchers. Function BIRN aims to speed discoveries and treatments for schizophrenia, Parkinson's disease, depression, and dementia by sharing data and expertise.
Research found that young pregnant women with pregnancy complications are at increased risk of heart disease and death, with the risk doubling after adjusting for medical factors. Smoking during pregnancy was also found to significantly increase the risk of all-cause death and cardiac death.
Researchers found that retreatment with decitabine resulted in 45% of patients achieving any response, with some experiencing partial or complete remission. The median overall survival was 28 months, and continued outpatient maintenance treatment is being studied for its benefits.
A team of researchers from UCI has identified a new form of superior memory syndrome, hyperthymestic syndrome, in a 40-year-old woman known as AJ. The study found that AJ's memory is instant and deeply personal, related to her own life or to other events that were of interest to her.
A new study is recruiting over 3,500 rugby union players aged 16-35 to gather data on head injuries and recovery. The research will inform the development of evidence-based guidelines to manage player return to sport after concussion.
Researchers identified issues with commonly used anti-PKC-delta antibodies that affect immunoblotting studies of phosphoproteins. This limitation may lead to misinterpretation of PKC-delta expression levels in heart cells.
Two DNA repair proteins, XPB and XPD, can destroy HIV DNA, reducing viral replication and integration into host chromosomes. This finding may lead to new strategies for treating HIV infection and AIDS.
Astronomers discover high-temperature minerals in comet Wild 2, challenging the formation of crystalline materials. The Stardust mission brings back samples from the coldest spot in the solar system, providing clues about the origin of these materials.
A pilot study found valproic acid slows cognitive decline in HIV-related dementia, with potential applications for Alzheimer's and Parkinson's diseases. The treatment targets neuro-inflammation, a key factor in neurodegeneration.
A recent study conducted by Dr. Charles Simonton and the STENT Group found that both drug-eluting stents performed well in controlling restenosis in diabetics, with paclitaxel-eluting stents potentially showing better outcomes for insulin-treated diabetic patients.
A study found that feedback on performance given to primary care physicians decreased clinical inertia and improved glucose levels in their patients. The intervention, which included physican-specific feedback and computerized reminders, led to sustained improvements in physician behavior and patient outcomes after three years.
Researchers found that MEF protein enables hematopoietic stem cells to remain in a quiescent state, allowing for rapid repopulation of depleted blood cells after treatment with chemotherapy or radiation. This could lead to improved recovery and enhanced resistance to chemotherapeutic drugs.
Researchers found a significant improvement in children's breathing and oxygen levels when wearing PAP therapy masks. However, adherence to treatment remains a challenge, with parents often overestimating usage and many children not using the device consistently.
Researchers at Stanford University have developed a new technique that allows anyone with a computer to download images of the entire solar surface. This technology enables the early detection of solar storms on the far side of the sun, which can be detected days or weeks in advance and affect Earth's orbiting satellites, telecommunica...
A pilot project by Duke University Medical Center achieved a significant reduction in 'door-to-reperfusion' time for patients with heart attacks, cutting it down to 50 minutes. The project used wireless ECG transmission from ambulance paramedics to directly link patients with cardiologists.
A study published in Memory & Cognition found that morally blaming a person can distort memory for the severity of their crime or misbehavior. This distortion can have significant implications for eyewitness testimonies and judgments of guilt, putting perpetrators at greater risk.
Researchers suggest using a microvolt T-wave alternans (MTWA) test to help determine which patients need implanted defibrillators, reducing costs for Medicare. The study estimates that this approach could save $690 million annually.
A study showed that very high-intensity statin therapy can induce regression of coronary atherosclerosis, measured by percent atheroma volume. Rosuvastatin treatment led to significant decreases in low-density lipoprotein cholesterol and increases in high-density lipoprotein cholesterol.