A 3D tissue model of the developing heart has been created using human induced pluripotent stem cells, allowing for more accurate and reliable drug safety testing for pregnant women. This model mimics early stage human heart development, providing a valuable tool for assessing embryo toxicity and fetal development.
Baycrest researchers discovered a new method to improve older adults' name recall by tapping into their brain's natural ability to process distractions. This approach harnesses the idea that older adults can use distraction to aid learning and could lead to an accessible memory training tool.
Researchers at UCalgary have developed a portable brain imaging system that uses light to detect and monitor damage in the brain from concussion. The device measures communication in the brain by measuring oxygen levels, revealing patterns of blood flow and oxygen levels that change after concussion.
Researchers at University of Illinois Chicago developed chimeric cells that can restore the structural muscle protein dystrophin in people with Duchenne muscular dystrophy, potentially avoiding the need for immunosuppressive drugs.
A five-year grant funds a multi-center clinical trial testing the effectiveness of intermittent hypoxia therapy on hand and arm function in individuals with incomplete cervical SCI. The study aims to improve neuroplasticity and increase muscle contractions, leading to better outcomes for rehabilitation.
Researchers found that methane in sea ice is transported thousands of kilometers across the Arctic Ocean and released months later, influencing climate change. The phenomenon has not been reflected in current climate models.
GPM's Dual Frequency Precipitation Radar data revealed intense convective storms in Tropical Cyclone Eliakim's northwest quadrant, dropping rain at over 205 mm/hour. The storm showed improved organization and powerful convective storms on its way to landfall in Madagascar.
Researchers have discovered a cheap, safe, and effective method of dealing with harmful algal blooms using hydrogen peroxide. The treatment has shown promising results in controlling cyanobacteria, a major public health hazard, and could help prevent fish kills and closures of waterways.
A new study by Boston Medical Center found chemical peels to be a relatively safe treatment option for people with darker skin. The research revealed that less than four percent of participants experienced unwanted side effects.
A new study casts doubt on the use of ketamine nasal sprays for treating severe depression. The pilot trial found that the dosage of ketamine through an intranasal device can vary greatly between individuals and within a day, leading to unpredictable side effects such as high blood pressure and psychotic-like symptoms.
Scientists have modeled plasma conditions that lead to chirping in fusion devices, revealing a connection between turbulence levels and Alfvén wave chirping. Lower turbulence reduces the fast ion wind's ability to cause chirping, which can slow fusion reactions.
Research reveals that wild mice living near humans in a Swiss barn underwent changes in behavior and physical appearance, including the development of white fur patches and shorter snouts. The study, led by Anna Lindholm, found that these changes occurred without human selection or breeding, highlighting the process of self-domestication.
Researchers at Brandeis University have engineered soft materials with embedded chemical networks that mimic the behavior of neural tissue, paving the way for autonomous soft robotics and dual sensors. The breakthrough material may also lead to artificial skins and exoskeletons.
Scientists at Rice University and Tokyo Metropolitan University developed a novel way to manipulate light at the quantum scale by using single-walled carbon nanotubes as plasmonic quantum confinement fields. The discovery could lead to the development of unique lasers and other optoelectronic devices.
Researchers at NIST and Johns Hopkins University discovered a zero-field switching effect that enables stable, non-volatile memory devices without magnetic fields. This breakthrough could lead to smaller, lower-power computing devices.
A study by Colorado State University researchers found that cannabis industry workers in Colorado are generally job-secure and valued safety, but lack formal training and face hazards such as ergonomic concerns and slips, trips, and falls. The industry needs to establish best practices and guidelines to improve worker health and safety.
A recent study found that soil fungi can impact the ability of forests to adapt to climate change. Soil carbon-to-nitrogen ratios increase with ECM dominance and are more associated with low soil nitrogen levels. This suggests that mycorrhizal guilds may be emerging functional traits that define species in terms of their ecological roles.
A yellow fever outbreak in Brazil highlights the need for tourists to get vaccinated before visiting affected areas, with the risk of severe illness and death being up to 60% among those who contract the disease. The Food and Drug Administration-approved vaccine is currently unavailable in the US due to manufacturing difficulties.
Researchers developed nanoparticles to target liver sinusoidal endothelial cells with miR-20a, restoring normal behavior and reducing tumor growth. The study found an 80% reduction in liver metastasis caused by colon cancer, highlighting a potential complementary treatment strategy.
The University of Freiburg team found that auxin-mimicking molecules accumulate primarily in the endoplasmic reticulum before entering the nucleus, regulating gene expression. This signaling pathway helps control various plant processes, including development and responses to environmental changes.
A new study by the European Association of Urology confirms that gender surgery significantly improves the quality of life for transgender individuals. The study found that 80% of male-to-female patients perceived themselves as women after surgery and experienced a high level of satisfaction with their outcomes.
A new study by USC and Yale researchers suggests that at least part of the gains in life expectancy over recent decades may be due to a change in the rate of biological aging. Biological age decreased across all age groups, with older adults experiencing the greatest declines.
A genetic variant in the PDGFD gene has been identified as a key factor in adrenal suppression caused by corticosteroids. This discovery offers potential for personalized approaches to therapy, including screening patients at high risk of side effects or developing tailored monitoring plans.
Researchers discover vascular alterations in small blood vessels of mice with advanced Alzheimer's disease, affecting female mice more severely. The study finds correlations between vascular structure and function, anxiety levels, and cognitive functions.
Patients with OCD suffer from a severe reduction in quality of life due to the maladaptive strategies they use. The study suggests that teaching children skills such as coping with bullying and emotional turmoil through cognitive training may help improve their daily lives and prevent mental health disorders.
A new mobile application developed at the University of Turku can detect atrial fibrillation with 96% accuracy, significantly reducing the risk of stroke. The app uses smartphone accelerometers to identify patients with atrial fibrillation, and its results have been validated in a study involving 300 patients.
A study found that 4.9% of Medicare beneficiaries lack a personal physician, scoring lower on measures of healthcare quality and experiencing poorer mental health. Encouraging regular doctors for these patients may improve continuity and care.
A study discovered that an experimental drug connected to fat regulation prevents the formation of kidney stones in mice. The researchers found that the β3-agonist reduced inflammation in kidneys by consuming free fatty acids, potentially preventing both obesity and kidney stones. Further studies are needed to confirm these findings.
Researchers discovered that the proteins in royal jelly, particularly MRJP1 and apisimin, create a fibre-like structure that makes it viscous enough to keep queen larvae in their cells. This property ensures the survival of bee colonies by preventing larvae from falling out and developing into queens.
Researchers at UC Davis discovered a piezomagnetic material that alters its magnetic properties when subjected to mechanical stress. This finding has potential applications in detecting strain within materials, such as aircraft components, and could lead to new ways of investigating superconducting properties.
A study published in Epidemiology found that assaults spiked in cities hosting Donald Trump's presidential campaign rallies during the 2016 US election. The researchers suggested two possible explanations for their findings: increased violence at rally venues and social contagion through news reports and digital media.
The US has seen significant improvements in air and water quality since the Clean Air and Clean Water Acts were enacted in the 1970s. Long-term monitoring programs have tracked declines in pollutants like sulfur, nitrogen, mercury, and lead, leading to benefits for human health, economies, and environments.
Researchers at the University of Washington have developed AFQ-Browser, a web-based tool for displaying, analyzing, and sharing neurological data collected through diffusion-weighted MRI studies. The browser aims to improve transparency and data-sharing methods in neuroscience research.
The SOMMa alliance aims to increase national and international visibility, promote collaboration and networking, and have a voice in scientific policy. The position paper highlights three administrative issues that require urgent attention, including VAT deduction, personnel hiring regulations, and public-tenders law.
A study of nearly 300,000 people found that being overweight or obese increases the risk of heart disease, with a BMI above 22-23 kg/m2 and increased waist circumference also linked to higher cardiovascular disease risk. Maintaining a healthy weight through diet and exercise can help minimize this risk.
Researchers at Tokyo University of Agriculture and Technology have developed a cell-sized mold to create gelatin gels that are 10 times stiffer than regular gels. The findings reveal that the increase in β sheet structure from interaction with lipid membranes is the key factor behind this increased stiffness.
Research shows that water-bearing minerals release water underneath geologic hot spots, lubricating earthquakes and fueling volcanoes. A new spectroscopy technique applied to garnet containing fragments of quartz reveals the source of water, contradicting conventional thermodynamic equations.
A new study by Johns Hopkins Medicine reveals a significant racial and ethnic disparity in Trichomonas vaginalis (TV) infection rates in the US population. TV infection disproportionately affects black individuals, with higher prevalence rates among black males and females, particularly those living below poverty level.
Researchers used numerical modeling to study the dynamics of supersonic flow, revealing two induced combustion modes and a local quasi detonation mode due to incident shock waves. The simulations provide valuable insights for scramjet engine design, enabling the optimization of mixing and combustion processes.
A major international survey found that around 25% of patients with penile cancer are not receiving recommended treatment. This leads to a significantly lower survival rate, with twice as many patients surviving if treated according to guidelines.
Researchers at UPV/EHU developed an algorithm to calculate chest compression depth and frequency based on chest acceleration, validating its accuracy in real-time monitoring of CPR quality. A new device is being marketed to assist CPR, aiming to improve patient survival rates.
Scientists discovered genomic ancestry of Stone Age North Africans from Morocco, revealing a mix of Near Eastern and sub-Saharan African influences. The study, published in Science, sheds new light on human migration patterns and the history of our species.
Researchers at Aarhus University have developed a llama-antibody, or nanobody, that can prevent the cleavage of the C3 protein, which plays a crucial role in the innate immune system. This breakthrough could lead to new treatments for kidney diseases and conditions where the immune system is overactive.
Researchers at Johns Hopkins Medicine have uncovered a link between a genetic mutation in the GBA1 gene and the formation of fatty plaques in the brain that contribute to Parkinson's disease. The study found that changes in the mixture of fatty molecules cause protein pieces to stick together, forming 'dead zones' in the brain.
Researchers at Rockefeller University have mapped the architecture of the nuclear pore complex in yeast cells, revealing a massive cylindrical configuration with flexible components. The study provides insights into cell transport and may aid efforts to understand and treat diseases linked to defects in the pore complex.
Historian J. Michael Francis discovered a 1601 gunpowder expenditure list from St. Augustine that confirms the city's residents held a St. Patrick's Day procession in honor of San Patricio, the Spanish name for St. Patrick. The records also reveal that St. Patrick was identified as the patron saint of the city's maize fields.
Scientists at Allen Institute and University of Washington developed scalable SPLiT-seq method to characterize RNA in individual cells, enabling identification of various cell types in the brain. The technique significantly lowers the cost barrier for labs that want to perform single-cell profiling.
A recent study links Beijing's persistent haze events to large-scale climatic warming and changes in the East Asian winter monsoon system. The research found a significant positive trend of haze events in Beijing from 1980 to 2016, correlating with weakened regional atmospheric circulation.
Three studies highlight significant shifts in climate, tool-making, and trade in East Africa around 300,000 years ago. The region underwent transformations from floodplains to grasslands, driving human mobility, information gathering, and potentially trade.
A team of researchers used a state-of-the-art simulation code to study the behavior of red blood cells flowing through physiologically realistic microvascular networks. They observed that red blood cells frequently jam for brief periods before proceeding downstream, causing temporary increases in vascular resistance. The findings have ...
Kessler Foundation joins four sites to investigate optimal timing and methods for intensive hand rehabilitation after stroke, utilizing robotics and game-based virtual reality training.
750 world experts will finalize landmark reports on biodiversity, nature's contributions, and land degradation, providing unprecedented insights into the status of global biodiversity and land quality. The reports will inform better decisions about nature and set biodiversity targets for the period after 2020.
Researchers developed a new method to identify highly reactive killer T cells in ovarian tumors, showing they can be selectively grown for personalized cell-based immunotherapies. The approach overcomes limitations of existing methods, enabling the use of tumor-infiltrating lymphocytes for treating low-mutational load tumors.
The eGVHD App is a user-friendly tool that supports accurate GvHD diagnosis and scoring after HCT. It provides guidelines, definitions, and pictures to help clinicians evaluate all potentially affected organ systems.
A study of over 10,000 Australian students found that those who were older for their grade had higher academic self-confidence and were more likely to enroll in college. The study suggests that strict regulations on school starting ages may have unintended consequences for younger students.
Researchers found a brain circuit in the primary visual cortex that combines head and visual movement signals, enabling appropriate behavioral responses. This circuit involves the retrosplenial cortex, which encodes spatial navigation information.
Researchers have found evidence of early human trading, color pigments, and sophisticated tools in eastern Africa, approximately 320,000 years ago. These discoveries suggest that humans adapted to an unpredictable environment through innovation and social exchange networks.
Researchers developed a straightforward method to synthesize high-quality, ultrathin metal-organic frameworks (MOFs) for efficient propylene-propane separation. The new MOF membranes showed one of the best separation performances recorded to date, reducing energy consumption in petrochemical industries.
A newly launched startup has acquired exclusive rights to develop a minimally invasive surgical device that can repair holes in the heart without complications. The technology uses deployable soft structures and offers a non-invasive approach to tissue repair, facilitating clinicians' access to difficult-to-reach organs.
Researchers discovered crystallized water trapped in diamonds formed at extreme depths, challenging previous assumptions about diamond origins. The study suggests water may exist in the lower mantle, potentially affecting ocean water recycling and Earth's internal dynamics.