Researchers found that aortic arch pulse wave velocity is a strong predictor of white matter hyperintensities, which are associated with accelerated cognitive decline and Alzheimer's disease. The study used MRI to measure aortic arch pulse wave velocity in 1,270 participants and found a significant association between the two variables.
Researchers found King Richard III in a hastily dug, lozenge-shaped grave under a Leicester car park, suggesting gravediggers were in a hurry to bury him. The grave was too short for the king's body, and his torso was crammed in, with evidence of hands being tied during burial.
Researchers discovered a regenerative process involving damaged nerve fibers in the spinal cord that can improve functional recovery after stroke. The study found significant improvement in voluntary movement in mice whose axons were not severed, suggesting potential treatment targets for enhancing neurological recovery.
A team of economists found that offering gift cards increased the likelihood of donating by 26-52%, and even motivated people to donate for the first time. The authors argue that such incentives can help address blood shortages, particularly in low-income countries where donations are scarce.
Researchers from Syracuse University argue that the Earth's mantle plays a significant role in shaping the coastline and estimating long-term sea-level rise. The team's findings suggest that the shoreline has been uplifted by over 210 feet, indicating less ice melting than expected.
The Lotus Valve System demonstrated successful valve implantation in all 60 patients, meeting the primary device performance endpoint. The rate of moderate or greater aortic regurgitation decreased significantly, while mortality rates remained low.
A study found that individuals with chronic kidney disease who have a heart-healthy lifestyle are less likely to develop kidney failure. Those with four ideal factors for life's simple 7 tool had nearly half their risk cut, while those with five ideal factors didn't develop kidney failure.
The Ring Nebula's true shape has been revealed by NASA's Hubble Space Telescope, showing a more complex structure than previously thought. The new observations have allowed researchers to construct the most precise 3-D model of the nebula, revealing details such as a blue, football-shaped structure and dark, irregular knots of dense gas.
Researchers have developed a flat spray-on material that can act as a flat lens, allowing for arbitrary aperture sizes and potentially revolutionizing imaging devices. The technology has significant advancements in ultraviolet light imaging of biological specimens.
Researchers at University of Illinois developed a cradle that uses iPhone's built-in camera and processing power as a biosensor to detect toxins, proteins, bacteria, viruses and other molecules. The device can perform on-the-spot tests for environmental toxins, medical diagnostics and food safety.
Researchers used next-generation sequencing to analyze DNA alterations in adjacent Gleason patterns of the same tumor. The study found that some aggressive prostate cancers have identical genetic markers, enabling better prediction of cancer progression and management.
People with high IQ scores have more selective visual perception, discriminating between small moving objects and larger background motions. This ability helps them efficiently process information in a world filled with distractions.
Researchers at UC Irvine have discovered a new mechanism by which estrogen suppresses lipid synthesis in the liver, revealing potential new approaches for treating certain liver diseases. The study found that estrogen acts on cell membrane-based receptors to inhibit lipid synthesis, changing long-held views in the field.
Despite promising initial results, a breakthrough treatment for Alzheimer's disease did not show any reduction in plaque burden after extensive testing. Three independent research groups failed to confirm the efficacy of bexarotene in reversing beta amyloid plaques.
Physicists at ETH Zurich have developed a new device that uses laser beams and atoms to emulate magnetic materials, enabling the study of exotic forms of magnetism. The approach promises groundbreaking insights into the properties of magnetic materials.
A recent fish study has identified a key hormone that enables zebrafish to replace damaged motor neurons, which could aid research into neurodegenerative diseases like ALS. This discovery also sheds light on the development of motor neurons in human embryonic stem cells.
A cross-sectional study found that bicycle helmet laws significantly reduced the risk of death and injury for children under 16 involved in bicycle-motor vehicle collisions. The study showed a 20% lower fatality rate in states with helmet laws, with an average annual reduction of 900 fatalities.
A University of Alberta physicist collaborated with amateur astronomers to confirm the periodic bursts of light from a binary star, SS Cygni, 370 light years away. The team re-examined an established theory and confirmed its accuracy using data from ground-based radio telescopes and optical observations.
The Lancet Series on transfusion medicine examines the use of restrictive transfusion practices, innovative solutions to address the growing demand for blood products, and alternative ways to manage the blood supply. The series aims to reduce unnecessary blood transfusions, improve patient safety, and cut costs.
Researchers will develop procedures to help underinsured people efficiently get care for common health problems. The study aims to identify and address barriers to accessing care, prioritizing care access strategies based on patient experiences.
Dr. Peter Williamson's research reveals distinct neural networks affected by different psychiatric diseases, including schizophrenia, bipolar disorder, and depression. The study uses advanced imaging techniques to uncover differences between patients and healthy individuals.
A large cross-sectional study found that adults, adolescents, and parents of school-age children consistently underestimate the calorie content of their meals, especially large ones. The researchers suggest that menu labelling requirements and social marketing campaigns could help correct this underestimation.
Researchers at Pitt Public Health have found that an anti-cancer drug, bexarotene, significantly improves cognitive deficits in mice with Alzheimer's gene mutations. The study suggests a possible new therapeutic treatment for Alzheimer's disease, although the exact mechanism of action remains unclear.
Scientists at Ludwig-Maximilians-Universität München discovered a mechanism that allows chromosomal DNA to be locally displaced from nucleosomes for transcription. The FACT complex interacts with histone subunits and detaches stretches of packaged DNA from the nucleosome core, releasing it from its tight wrapping.
Researchers at Norwich BioScience Institutes have developed a new method to breed GM tomatoes with enhanced flavor, health, and shelf life. By introducing a specific compound, they were able to prolong the lives of cancer-prone mice and extend the average shelf life from 21 days to 48 days.
Researchers found that an anti-cancer drug, bexarotene, did not reduce amyloid plaques in the brains of mice, despite initial claims of its effectiveness in reversing Alzheimer's-like symptoms. The study suggests that further research is needed to understand the nuances of this potential treatment.
Researchers at the University of Montreal have discovered how rapamycin prevents cells from dividing, potentially slowing cancer progression and other diseases of abnormal growth. The study reveals that TOR sends a signal to shut down B cyclin production through an intermediary protein.
Defects in cellular trash removal processes lead to toxic protein build-up and neuronal damage in Gaucher disease, mirroring Parkinson's disease pathology. Researchers suggest targeting mitochondrial function to develop treatment strategies for both diseases.
Researchers found that white tigers owe their color to a variant of the SLC45A2 gene. This discovery may lead to reintroduction of white tigers into their wild habitat.
Researchers at North Carolina State University discovered the neural mechanism behind cockroach aversion to glucose in roach baits. This genetic trait helps roaches reject baits made with glucose, a common ingredient in roach-bait poison.
Scientists at NIH report discovering a small molecule, natriuretic polypeptide b (Nppb), that streams ahead and selectively plugs into a specific nerve cell in the spinal cord, triggering the sensation of itch. In mice with Nppb-deficient neurons, itching was significantly reduced.
Wayne State University has received a second year of funding from the New Economy Initiative to expand its Technology Commercialization Office's efforts. The university will use the grant to enhance marketing tools and licensing staff, increasing the availability of WSU intellectual property assets to industry and venture capital.
A team of researchers used radio telescopes to precisely locate SS Cygni at 370 light-years from Earth, resolving a major problem in understanding the star's regular outbursts. The new distance measurement brings the system into line with standard explanations for similar systems.
Researchers discovered neurons employ distinct Caspase mechanisms for axon pruning and apoptosis, providing insights into neurological disorders. The study's findings shed light on the processes underlying neurodevelopmental disorders like schizophrenia and autism.
A study has shown that H7N9 can be transmitted efficiently when animals are in close contact, such as touching, coughing, and exchanging bodily fluids. The transmission of the virus was found to be reduced if cages were well spaced, indicating that airborne transmission is not a high risk for H7N9.
A 2.5-year-old boy with severe brain damage was treated with autologous cord blood and showed significant improvement in symptoms, including learning to speak simple sentences and move. The treatment's effectiveness has sparked hope for alternative therapies for infantile cerebral palsy.
Researchers at Lund University have prevented early symptoms of Huntington's disease, depression, and anxiety in mice by deactivating the mutated huntingtin protein. This discovery is a major breakthrough and may lead to more accurate treatments for this debilitating disease.
Researchers recommend against testing bexarotene on patients due to inconsistent results in various animal test models. The study highlights the importance of rigorous scientific evaluation and reproducibility.
A new microsphere-based detection system uses multiple antibodies at once for early HIV detection and vaccine efficacy assessment. The novel multiplex immunoassay approach significantly improves sensitivity over standard ELISA techniques.
Researchers developed a new laboratory method to detect and measure the mechanics of single-molecule interactions, revealing a well-defined 'quantum of force' required to activate cell adhesion. The findings have broad applications for research into stem cells, cancer, infectious disease, and immunology.
Researchers found that Africans develop type-2 diabetes through increased insulin resistance, while East Asians develop it through lower insulin-secretion ability. This understanding could lead to more targeted therapies for the disease.
A Wayne State University researcher found that affective commitment, or feeling loyal and proud of an organization, is the most desirable type. The study also showed that continuing commitment, driven by salary and benefits, can lead to employees staying too long due to high costs.
Researchers have captured conclusive images of green alga consuming bacteria, providing evidence for a critical step in the evolution of photosynthetic algae and land plants. The discovery sheds light on an early evolutionary event that fundamentally changed the trajectory of plant and animal evolution.
Researchers from UW-Milwaukee and University of York investigate ultra-thin films of new materials, aiming to create a materials platform for quantum computers. The team found that the unique properties of topological insulators can be modified by intrinsic defects, opening up new possibilities for spintronics.
A study reveals a unique form of childhood asthma connected to impaired sphingolipid synthesis, bypassing typical allergen and inflammation pathways. This discovery may lead to precision medicine approaches for treatment.
Researchers have identified a new compound class that promotes neuroblastoma cell differentiation, which can stop tumor cells from dividing and growing. This breakthrough could lead to the development of novel treatments for high-risk childhood cancer.
Researchers discovered that discarded immune cells stimulate the release of hematopoietic stem cells from the bone marrow into the bloodstream. This process is regulated by the daily elimination of neutrophils and follows a circadian cycle, which could have implications for cardiovascular health.
A recent study by Arizona State University researchers found that reforestation efforts in the Panama Canal watershed may not always increase water supply, but can enhance carbon sequestration and timber production. The research highlights the importance of understanding the spatial distribution of ecosystem services and their trade-offs.
A study by University of Toronto Mississauga researchers found that offering economic incentives such as gift cards increased blood donations without compromising safety. The study used field-based studies with larger samples and found that incentives like paid vacation days led to a significant rise in annual blood donations.
A team of scientists at the University of California, Irvine, has discovered a rare mega-galaxy dubbed HXMM01, which is 10 times larger than the Milky Way. The galaxy was formed after a 11-billion-year collision between two young galaxies and is rapidly fading away due to its own cataclysmic birth.
A novel vaccine concept using HA-ferritin nanoparticles elicited a potent immune response and broad protection against H1N1 virus strains. The experimental vaccine was also active against a wider range of strains than the licensed seasonal influenza vaccine.
NASA's Solar Dynamics Observatory (SDO) detected a M7-class solar flare on May 22, 2013, accompanied by a coronal mass ejection (CME). The CME was not Earth-directed but may cause disruptions to satellites and electronic systems.
A team of interdisciplinary researchers from Johns Hopkins University has found that turbulence is the key to explaining magnetic field misbehavior in solar flares. The study used complex computer modeling to mimic what happens to magnetic fields when they encounter turbulence within a solar flare, revealing why the usual rule of physi...
A pan-European study found that certain signs of motor disorders can appear years before the actual disease manifests. The researchers detected these signs using a mathematical model and extensive tests, including standardized tests of muscular coordination and magnetic resonance imaging.
Harvard physicists develop a novel technique to detect molecular variants in chemical mixtures, relying on microwave fields to identify left- and right-handed compounds. The method can analyze complex mixtures and determine the ratio of variants, with potential applications in pharmaceutical development.
A new study found that obstructive sleep apnea (OSA) is independently associated with visceral fat accumulation only in men, while in women, BMI was the only factor linked to this risk. This disparity may contribute to differences in OSA's impact on cardiovascular disease and mortality between genders.
Researchers at Michigan State University investigate the brain and behavior of zebra finches to understand the relationship between rhythm and stuttering. The study aims to identify which parts of the brain are responsible for processing rhythm, with potential implications for treating stuttering in children.
A recent study found that mild hypothyroidism can have a higher mortality risk among patients with heart failure, especially in African-American populations. The research suggests that a 'one-size-fits-all' approach may not be suitable for assessing risk and determining treatment for subclinical hypothyroidism.
The World Heart Federation hosted an international meeting to address the growing burden of rheumatic heart disease, a neglected non-communicable disease that kills over 200,000 people under 25 annually. Four key strategies were identified to integrate RHD prevention and control into national action plans.
A new study found that 42.4% of young people use calorie information when eating at fast food or chain restaurants, with girls and obese youth being more likely to do so. In contrast, those who eat there twice a week or more are half as likely to use calorie information.