Researchers found that people with resolved atrial fibrillation are nearly as likely to experience a stroke as those with ongoing atrial fibrillation. The study suggests that patients with atrial fibrillation should continue treatment even after their heart rhythm appears to have returned to normal.
A 34-million-year-old whale skull from Antarctica reveals early whales didn't have baleen, but instead used teeth to bite large prey. The discovery provides a rare window into the earliest phase of filter feeding evolution.
A new protein analysis tool, IonStar, improves measurement consistency of proteins in low abundance and lowers missing data. It could increase medical diagnosis quality and speed up pharmaceutical development.
A new study found ginger effective in treating vomiting in children with acute gastroenteritis, leading to fewer lost school days and reduced hospitalizations. The trial compared the effectiveness of ginger with a placebo, showing significant reductions in vomiting episodes and school absences.
Airlines compete using departure times to offset location disadvantages, saving consumers time and money. Low-cost carriers exploit lower operating costs to offer variety in departure times, improving social welfare and helping smaller carriers compete more effectively.
Researchers at Tohoku University used a visual search experiment to demonstrate that the human visual system can perceive objects outside its limited field. The study found that the brain constructs a 360-degree world, enabling smooth and efficient movement without turning.
Researchers at UMass Amherst have developed a molecular switch that uses light to control the release of compounds. The system consists of a thin membrane made up of chemical bonds, which can be compromised by the movement of a single chemical bond to allow the compounds to react with each other.
The Daily Mile program, which involves a 15-minute daily break for physical activity, has been shown to improve fitness, body composition, and activity levels in children. The study found significant positive changes in the intervention school compared to the control school.
Researchers analyzed ancient genomes to shed light on historical migration, language spread and horse domestication in Asia. Genetic data suggests that people migrated eastward through Central Asia before settling in the eastern regions.
A study analyzed 154,498 NSCLC and 27,834 SCLC patients who died on or before December 31, 2013, revealing racial-ethnic disparities in end-of-life care quality. Minority patients had higher odds of preventable medical encounters, delayed hospice referral, and aggressive chemotherapy during end-of-life.
Researchers developed a method to identify men with locally advanced prostate cancer who are less likely to respond well to radiotherapy. A 28-gene signature accurately identifies hypoxic tumour tissue in patients with prostate cancer that invades nearby structures. This signature could lead to improved treatment outcomes for patients.
Researchers at Hebrew University of Jerusalem create uniform method to separate right- from left-handed chiral molecules using magnets. This breakthrough technology has practical importance for producing better medicines and safer pesticides.
Flesh-eating disease causes necrotizing fasciitis, a condition where bacteria exploit nerve communication between the nervous and immune systems. Researchers found two approaches involving nerve modulation that could prevent infections and halt disease progression.
Researchers analyzed four African cassava cultivars and found that unimproved landraces outperform improved varieties in photosynthetic efficiency. The study suggests genetic engineering may be necessary to improve cassava yield potential, which has remained stagnant despite advances in breeding.
Researchers found that most oncologists discuss medical marijuana with patients and nearly half recommend it, but only 30% feel knowledgeable enough to make recommendations. The study suggests a discrepancy between attitudes and practices regarding medical marijuana's utility in oncology.
Researchers found prenatal marijuana use can affect infant size, weight, and behavior problems, particularly when combined with tobacco use. Infants exposed to both substances showed smaller growth, earlier birth, and increased irritability in later infancy.
Researchers at Indiana University found that rats can replay past events from memory using episodic memory replay. The study confirms the ability of animals to recall specific events and their order, which is essential for making sense of scenarios. This breakthrough could lead to more effective treatments for Alzheimer's disease.
Researchers found that purple districts with changing parties tend to have highly polarized voters and legislators taking extreme positions. States with high proportions of these districts exhibit higher levels of legislative polarization.
Reconstructing the 3D structure of an interstellar cloud is critical for understanding the processes occurring within it. The authors successfully modelled the cloud's density using fast magnetosonic waves, showing that Musca is a vast sheet-like structure, not a long filament.
Researchers discovered that ancient microbes and modern humans share a similar molecular mechanism for respiration, adapting to changing environmental conditions. The study provides new insights into the evolution of Complex I and its potential use as a source of clean energy.
A study by NYU Rory Meyers College of Nursing found that one-third of nurses work longer than scheduled, resulting in drops in collaboration. The researchers suggest limiting overtime hours and offering fatigue management training and education to improve collaboration.
The Argonne team discovered that sulfur diffusion breaks down nanodiamonds into onion-like carbon, creating a superlubricant with friction 10 times lower than some nonstick coatings. The new lubricant can be used in various industries, including wind turbines and magnetic disc drives.
Researchers have developed a new method for synthesizing insulin using self-assembly of polypeptide chains, achieving a 40% efficiency rate. This approach enables the production of customized insulin compounds without relying on genetic engineering, which could lead to the development of novel insulin preparations.
Researchers used CRISPR-Cas9 to introduce genetic mutations into cacao plants, resulting in enhanced disease resistance. The study suggests that a fraction of the targeted gene's copies may be sufficient to trigger systemic disease resistance.
Researchers at Purdue University have discovered a way to improve the lifespan of lithium-sulfur batteries by using microwaved plastic as a carbon scaffold. The process reduces polysulfide shuttling effect, increasing battery capacity retention and paving the way for commercial use.
Researchers at UCR's Alternative Earths Astrobiology Center are developing a framework for dynamic biosignatures based on seasonal changes. They found that ozone could be a more easily measurable marker for seasonal variability in oxygen, which is produced by life. Observing atmospheric seasonality in exoplanets may help detect life.
Researchers used a powerful X-ray laser to analyze amyloid proteins, which are linked to neurodegenerative diseases like Alzheimer's. The new method allows for detailed structural analysis of individual amyloid fibrils, enabling scientists to better understand their role in disease development.
A 78,000-year-old cave site in coastal Kenya reveals a sequence of human occupation and cultural complexity, with technological innovations starting at 67,000 years ago. The discovery challenges previous hypotheses about human migration out of Africa and provides new insights into the adaptability of early humans.
Researchers developed a new method to study liver-stage malaria in vitro, using primary human liver cells on 384-well plates. This technique reduces costs and biomaterials requirements, making it more accessible for screening preclinical drugs and vaccines.
A Johns Hopkins study found that physicians' use of stigmatizing language in medical records can lead to negative attitudes towards patients and less aggressive pain management. The study suggests that neutral language in medical records can perpetuate bias among physicians.
Houston Methodist researchers developed a lab-on-a-chip technology that models human neural networks to study retinal diseases and potential treatments. The NN-Chip can quickly screen drugs for damaged neuron and retinal connections, offering new hope for treating conditions like macular degeneration.
The Swiss Personalized Health Network aims to develop guidelines for responsible health data sharing, addressing key topics like data quality and patient sovereignty. Innovative solutions, including blockchain and reciprocity-based incentives, are being explored to overcome hurdles in data sharing.
Researchers have found significantly elevated levels of 4-ethylphenylsulfate (4-EPS) in serum samples from children with Autism Spectrum Disorder (ASD), suggesting a potential biomarker for the condition. Elevated 4-EPS levels were also associated with worse social performance, indicating its possible role in ASD pathology.
A Vanderbilt-led research team discovered genetic variations that increase heart attack risk even when patients are on statin drugs. The study found seven genetic variations associated with increased heart events in patients receiving statins, suggesting new targets for reducing cardiovascular risk.
Scientists have observed turbulent magnetic reconnection at small scales in the magnetosheath just outside Earth's magnetic field. This phenomenon, involving only electrons, helps dissipate magnetic energy and may play a role in heating the solar corona.
A new study documents how a North American butterfly evolved complete dependence on an introduced European weed, leading to its local extinction when humans eliminated the plant's availability. The study supports the argument that rapid climate change will prove detrimental to biodiversity.
A new quality-control test developed by TGen can detect cancer in blood with high accuracy, filtering out contaminants and evaluating cfDNA samples. This test has shown promising results in several cancer types, including melanoma and breast cancer.
The Elizabeth R. Griffin Program aims to strengthen evidence base for implementing biosafety, biosecurity, and occupational health programs globally. The program will conduct collaborative research, promote safe work practices, and strengthen global health security networks.
An international team of astronomers has discovered a carbon-rich asteroid in the Kuiper Belt, providing strong support for theoretical models of the Solar System's formation. The asteroid, 2004 EW95, is believed to have formed in the inner Solar System and was flung outwards by a migratory planet.
Researchers have identified six genes associated with an increased risk of developing medulloblastoma, a common childhood brain tumor. Genetic screening guidelines have been developed to help patients understand their lifetime cancer risk and manage their care.
A new phase 1 trial has shown that CAR T therapy CYAD-01 can induce a complete remission in a patient with acute myeloid leukemia, lasting nine months. This breakthrough is significant as it is the first time CAR T therapy has been effective without preconditioning chemotherapy.
A new tool uses high-throughput DNA sequencing to accurately predict which early-stage Cutaneous T Cell Lymphoma (CTCL) patients are at risk of developing an aggressive form of the disease. The tool, which analyzes specific genes, has shown promise in improving treatment outcomes for these patients.
A new gene therapy approach has shown dramatic reduction of post-infarction arrhythmias in mice by electrically coupling non-excitable cells to undamaged heart cells. The treatment involves introducing a single gene, Connexin43, which bridges the conduction block in damaged hearts.
Research in Molecular Oncology reveals overexpression of interleukin-6 (IL6) in tumor-adjacent tissues among African-American men. This leads to inhibition of p53 tumor suppressor protein and promotes self-renewal of cancer cells.
A study published in Neurology found that depression in older adults may be linked to memory problems and structural differences in the brain. Researchers also discovered a possible link between depression and small vessel disease, a condition affecting brain health.
A 48,000-year-old Kenyan cave has yielded a treasure trove of ancient items, including crayons and shell beads, that offer new insights into the dawn of modern man. The site's continuous record of human habitation dates back 78,000 years, providing valuable evidence of early Homo sapiens behavior.
Researchers have discovered how nutmeg helps protect the liver, using a mouse animal model of liver toxicity. The spice was shown to restore healthy levels of lipids and acylcarnitines, and a specific compound, myrislignan, had a strong protective effect against liver damage.
Researchers at the University of Michigan demonstrated the effectiveness of connected cruise control, which uses vehicle-to-vehicle communication to adjust speed and improve safety. The technology reduced braking force by 60% and saved energy by up to 19% compared to human-driven vehicles.
Scientists have quantified sea temperatures in ancient oceans using fossil data and climate models. The research reveals high-latitude seas were around 20-25°C, similar to recent greenhouse climates.
Targeted probiotic supplementation in breastfed infants reduces antibiotic resistance genes by 87.5%, including genes associated with respiratory, intestinal, urinary infections, chlamydia, and acne.
Researchers have created a bioengineered heart valve that emulates native heart valves and functions well after transplantation into sheep. The tissue-engineered heart valve demonstrated improved valve mechanics and tissue structure, and remodeled itself in a similar fashion to native heart valves over time.
The US will gain better capabilities to respond to a nuclear attack thanks to Penn State's research on nuclear forensics, which will analyze special nuclear materials for unique signatures. The project will enhance national response in the face of a nuclear detonation and contribute to broader applications in nuclear science.
A study by Massachusetts General Hospital found that patients with chronic sciatica have elevated levels of a neuroinflammation marker in the spinal cord and nerve roots. The study suggests that blocking neuroinflammation may be a viable treatment option for these patients, particularly those who benefit from steroid injections.
Researchers found that brain regions responsible for understanding what we see have trouble communicating with other brain networks, increasing risk of mental illness. This breakdown may help target interventions and therapies.
MMS mission discovers a new process of magnetic reconnection that converts turbulent magnetic energy into high-speed jets of electrons. This finding helps scientists understand the role of magnetic reconnection in heating the solar corona and accelerating the solar wind.
In a breakthrough study, microbes have been found to act like savvy investors when contributing to the common good. They adjust their investment strategy depending on how much they have at stake, maximizing returns in groups with mostly relatives and exploiting contributions in outnumbered groups.
The US is predicted to lose its lead as the country with the most Nobel Prizes due to declining productivity. According to an empirical study, the US will be surpassed by Germany in 2025 and France in 2028. The UK remains a strong contender with a high success rate per capita.
A recent study found that powerful hurricanes intensify more rapidly and strongly in the Atlantic Ocean, with a climate cycle called AMO being the main driver. The average boost in wind speed during a 24-hour intensification event is about 13 mph more than it was 30 years ago.
Researchers found that people who generalize from negative events, such as pain or loss, report a greater experience of anxious feelings and intrusive thoughts. The study suggests that analyzing complex behavioral processes can help tailor treatments more effectively for people with anxiety.
Recent advances in PTSD research focus on brain structure and function, informing efforts to interrupt the processes leading to symptom development. Effective treatments like exposure therapy are based on mechanisms of fear extinction, while new approaches target stress hormones and brain regions involved in emotion dysregulation.