Scientists have found that bacteria can undergo two distinct types of recombination, which enables them to evade vaccines and become drug-resistant. The study, published in PLoS Genetics, used DNA sequencing data to reconstruct an evolutionary tree for pneumococcus bacteria.
A revised Australian tsunami database, updated by UNSW researchers, has revealed up to 145 possible tsunamis since prehistoric times, with 11 reported deaths in Australia. The database indicates the east coast faces the most significant risk from tsunamis.
A new study from Brigham and Women's Hospital suggests that extreme sleep durations may affect brain health in later life. Women who slept five or fewer hours or nine or more hours per day had worse memory than those sleeping seven hours a day.
Researchers at UCSB demonstrate a rapid synthesis technique for large-area Bernal (or AB) stacked bilayer graphene films, exhibiting electron mobility as high as 3450 cm2/(V•s). The growth of high-quality and large-area bilayer graphene films is achieved with controlled stacking order required for low-power digital electronics.
Researchers at EPFL used lasers to study how specific vibrations in a water molecule affect its ability to dissociate, enabling the optimization of theoretical models for water dissociation. This breakthrough can impact the design of future catalysts for industrial and commercial chemical reactions.
A new study analyzes climate change impacts on biodiversity across different regions, revealing severe threats to species adapted to specific climates. The tropics face novel climatic conditions and extreme events, while polar regions experience shrinking habitats.
In a rare observation, butterflies and bees were seen drinking the tears of a spectacled caiman in northeastern Costa Rica. Researchers have found that this behavior is more common than previously thought, with many instances recorded by wildlife enthusiasts and scientists.
A new Center at Indiana University School of Medicine aims to equip the future health care workforce with tools of implementation science. This enables optimal care in a rapidly changing environment, focusing on patient-centered and cost-efficient care.
Childhood obesity is linked to mental health issues and decreased academic performance. Dr. Kaliebe's three rules aim to promote physical and mental well-being through healthy eating, regular movement, and reducing sensory overload.
A new study published in the Journal of the American College of Surgeons reveals that noncombat-related injuries, such as accidents and burns, are the leading cause of pediatric admissions to U.S. military combat hospitals in both countries. The study analyzed data from over 6,000 children under 14 years old treated at Army support hos...
A recent study analyzed 20 years of data on 2,717 marriages and found that when the wife becomes seriously ill, the risk of divorce rises. Women are more likely to be widowed and get divorced when they become ill, possibly due to caregiving responsibilities and limited marriage market options for divorced men.
Researchers have discovered how the HIV-fighting enzyme SAMHD1 works, allowing for potential new treatments to prevent HIV infection. By understanding its dual role in breaking down nucleotides and regulating its activity, scientists may be able to develop more effective prevention strategies.
Tapah downgraded from a tropical storm to a tropical depression due to strong vertical windshear and decreased sea surface temperature. The storm is currently tracking northwest at 10 knots per hour and expected to recurve to the northeast.
Researchers identify AHDC1 gene as cause of newly recognized genetic syndrome with symptoms of sleep apnea, delayed speech and hyptonia. The study analyzed DNA sequences from patients and their families, revealing damaging mutations in the same gene across multiple cases.
A new study identifies three potential drug candidates for treating autoimmune diseases such as multiple sclerosis, rheumatoid arthritis, and psoriasis. The researchers used genome analysis to target a specific molecule within immune cells that drives these diseases.
Researchers at Georgetown University Medical Center have identified Yes-associated protein (Yes) as the critical switch that promotes cancer growth and progression in pancreatic ductal adenocarcinoma (PDAC). Inhibiting Yes completely shuts down further growth of pancreatic cancer, offering a promising therapeutic target.
Researchers at Stanford University and Montana State University have successfully transplanted stem cells from infertile men into mice, resulting in the formation of primordial germ cells. The study provides a valuable model for understanding the earliest stages of human reproduction, which varies significantly from that of common labo...
Scientists propose new climate adaptation tools to reduce threats to amphibians, prioritizing habitat restoration in Western North America's mountainous regions. Removing non-native fish is a key strategy to restore resilience to landscapes.
A new study reveals the link between obesity and increased risk of myeloma, a cancer of plasma cells. The researchers found that adiponectin, a protective protein, can be used to suppress fatty acid production in myeloma cells, leading to their demise.
Researchers have identified a key chemical that can repair damaged cell nuclei, a breakthrough in treating Hutchinson-Gilford Progeria Syndrome (HGPS), a rare and devastating ageing disease. The compound, Remodelin, also shows promise in reducing DNA damage and improving cellular health.
Researchers developed antimicrobial edible films using pullulan and essential oils, which significantly inhibit bacterial pathogens in meat and poultry. The films provide immediate and sustained kill of bacteria, reducing the risk of foodborne illness.
Scientists can use the seismic signals to better understand glacier behavior and track changes in real-time. The Alaska Earthquake Center has recorded over 2,800 glacial events, which could provide new insights into glacier dynamics and potential advances in field studies.
A researcher is working on procedures to identify female menstrual blood and vaginal material at crime scenes, while also identifying male fluids. This study aims to differentiate between seminal fluid and semen to prove the occurrence of sexual intercourse in cases of false accusation or prosecution.
Researchers have identified a section of the anthrax toxin Lethal Factor that could help produce a more effective vaccine. A 10-year study found that this protein elicits a highly effective immune response and works across a wide range of people, making it a promising target for future vaccines.
The Kempe Center presents its first National Kempe Scientific Impact Award to Dr. David Finkelhor for his sustained scientific contributions to the field of child abuse and neglect. Finkelhor's extensive research has informed policy and practice to benefit children and families.
A nationwide study found that heightened newspaper coverage after a suicide might lead to initiation of some teenage suicide clusters. The content of media reports, including prominent stories and detailed descriptions, is crucial in this regard.
Mayo Clinic researchers define a new subtype of Alzheimer's disease that produces different symptoms and affects the brain in unique ways. This subtype, called hippocampal sparing AD, may be misdiagnosed as other conditions, but could be treated with current medications.
A study published in Science finds a previously unknown step in the biogeochemical process that occurs in aquifers, affecting groundwater quality and contaminant fate. Microbes breathe solid iron and sulfur, transforming them into reactive ions that impact the makeup of rocks, soil, and water.
A study found that vitamin D deficiency was associated with aggressive prostate cancer diagnosis and tumor progression in both European-American and African-American men. Lower levels of 25-hydroxyvitamin D (25-OH D) were linked to higher odds of having aggressive prostate cancer and faster disease progression.
Researchers at MIT have developed a technique that allows them to track neural communication in the brain over time, offering a new window on brain function. The technique uses magnetic resonance imaging (MRI) along with a specialized molecular sensor to monitor dopamine levels in specific regions of the brain.
Research reveals that maternal malnutrition can lead to growth restriction, obesity, and diabetes in offspring, with a domino effect on the health of grandoffspring. Epigenetic changes, such as DNA methylation, may contribute to this transmission of disease risk.
Researchers found subclinical disease in half of the studied firefighters, but traditional methods were insufficient, requiring specialized imaging for detection. The study suggests a high risk of cardiovascular disease among firefighters, emphasizing the need for early intervention and prevention strategies.
The project aims to create rapidly configurable metasurfaces that can be tuned in real-time, enabling the development of advanced optical technologies and quantum information devices. The research team will combine nanophotonics with quantum photonics to achieve unprecedented control over photon emission.
Scientists found viruses that infect bacterial cells in deep-sea environments, forcing them to burn sulfur reserves and release energy. The viral genes are similar to those used by the infected bacteria, suggesting a genetic exchange that helps the viruses propagate.
A £3 million project aims to develop nanoparticles for early detection and treatment of cardiovascular diseases. The researchers will use surface enhanced Raman scattering to quantify vascular inflammation and deliver drugs directly to diseased vessels.
The Integrated Precipitation and Hydrology Experiment field campaign aims to better understand mountain weather patterns and improve precipitation measurement. Researchers will combine ground-based measurements with airborne sensors and satellite data to gain insights into the complex processes of mountain rainfall.
Researchers found viruses force bacteria to burn sulfur reserves, releasing energy for viral replication. The study reveals a new microbial interaction in deep-sea environments, hinting that viruses act as agents of evolution in chemosynthetic systems.
A protein called Kindlin-3 has been identified as a key player in both the formation and spread of breast cancer. The discovery suggests that targeting Kindlin-3 could lead to an entirely new class of breast cancer drugs, potentially slowing or reversing disease progression.
The Hydrogen Polarimetric Explorer mission will measure the nature of interplanetary hydrogen, providing insights into the size and shape of the heliosphere and its interactions with the local interstellar medium. The sounding rocket's results will be combined with other NASA missions to improve models of the heliospheric boundary.
Researchers at Tel Aviv University pinpoint a genetic regulator, p53 and MicroRNA34, as the cause of phocomelia syndrome in mice. The study provides new insights into the mechanisms of teratogens and may lead to better understanding of toxin-induced birth defects.
Researchers from Scripps Research Institute will develop new technology to diagnose three diseases using a unique group of enzymes known as protein arginine deiminases (PAD). PADs have been linked to inflammatory diseases like rheumatoid arthritis, cancer, and Alzheimer's disease.
A study found that nearly one in five Ivy League college students misused prescription stimulants to help them study and write papers. The misuse was often viewed as a common occurrence on campus, with 37% of those who used stimulants believing more than 30% of their peers had done the same.
The Joint Quantum Institute theorists have made detailed calculations of the dynamics of a positronium Bose-Einstein condensate. They report that above a critical density, collision processes destroy the internal coherence of the gas, posing challenges for the operation of a gamma-ray laser.
A novel electronic nose technique has been successfully used to discriminate between prostate cancer and benign prostatic hyperplasia in a proof-of-principle study. The eNose system demonstrated sensitivity and specificity comparable to traditional testing methods, such as prostate-specific antigen (PSA), with rapid and non-invasive re...
Researchers have identified a gene, PLAC-8, critical to pancreatic cancer progression and growth through autophagy. Inactivating the gene in mice significantly slows cancer's progression, offering a potential new route to treatment.
Researchers developed a computational pipeline system to analyze plant genomes, revealing unusual properties in genes producing specialized metabolites. These findings offer an innovative strategy for discovering novel compounds with wide-ranging implications for agriculture, biotechnology, drug discovery, and synthetic biology.
A low-fat diet may help alleviate fatigue in people with multiple sclerosis (MS). The study found that participants who followed a plant-based diet very low in saturated fat had significantly less fatigue at the end of the year compared to those who didn't follow the diet.
The study found that brain activity in reward areas predicts food cravings, while prefrontal regions predict resistance to temptation. Participants with high prefrontal activity were more successful at controlling their desires.
Researchers at Penn Vet have identified several compounds that can reduce a virus' ability to spread infection, making it easier for the immune system to control. The compounds target specific interactions between viral proteins and host cells, potentially reducing mortality rates for diseases like Ebola and HIV.
International scientists argue that crucial scientific questions remain unanswered and important public health goals unmet in the case of smallpox. Research on live variola virus remains vital due to recent advances in synthetic biology and ongoing knowledge gaps, making its destruction less meaningful.
A new computational model simulates bone metastasis of prostate cancer and accurately predicts the impact of potential therapies on cancer cells and normal cells of the bone. The model was validated by comparing its predictions with tumor growth rates in mice, and identified critical players and events in the process of bone metastasis.
Researchers discovered microRNA-10a regulates human airway smooth muscle cell growth and inhibits PI3 kinase, a master regulator of cell proliferation. This finding offers a new approach to treating both asthma-induced muscle thickening and cancerous tumor growth.
A recent study found that statin therapy lowers LDL cholesterol and reduces the risk of heart disease and stroke in patients with chronic kidney disease, but has no effect on kidney function or progression. The Study of Heart and Renal Protection (SHARP) included 6,245 patients who received a placebo or cholesterol-lowering treatment w...
A recent study published in The BMJ found that helmet therapy does not improve outcomes for healthy babies with positional skull flattening. In the six-month trial, there was no significant difference in skull shape between children treated with helmets and those who received no treatment at age two years.
Researchers investigated the role of atrogin-1 in cardiac homeostasis and found that its deficiency promotes cardiomyopathy and premature death via impaired autophagy. Additionally, endothelial HIF-2 was shown to protect kidney from hypoxia-induced damage. These findings highlight the importance of protein turnover regulation and HIF-2...
People bereaved by suicide are at increased risk of suicide, depression, and mental illness compared to those affected by other sudden deaths. The Lancet Psychiatry review emphasizes the need for more comprehensive support from health and social services.
A Danish/American research team has discovered an accelerator pedal that controls the speed of a molecular machine. By varying the distance between the starting and stopping points, researchers can increase or decrease the speed of the molecule.
A recent study by Concordia University researchers found that women are more likely to be deterred by negatively framed descriptions of potential partners, while men respond more strongly to positive frames. This suggests that evolutionary factors may influence decision-making biases in mate selection.
Dr. Charles Rardin suggests hospitals and physicians consider four issues to promote a balanced approach to Minimally Invasive Surgery (MIS), including case criteria, quality management, and support for all forms of MIS. This approach is necessary to ensure patients receive the best care and avoid 'robotic factories'.
Two types of spinal cord neurons were identified as enabling skilled forelimb movement: excitatory interneurons for accuracy and inhibitory interneurons for smooth movement. The discovery may lead to understanding normal human motor function and potentially treating movement disorders.
Johns Hopkins researchers have successfully used stem cells derived from human body fat to deliver biological treatments directly to the brains of mice with glioblastoma, a deadly form of brain tumor. The treatment extended the mice's lives by an average of 24 days, offering new hope for treating aggressive brain cancer in humans.
A recent study of New York Times war coverage reveals that casualties get little mention in daily war reporting, despite major conflicts going back a century. The study finds that when casualties are covered, they are often presented in ways that minimize or downplay their human costs.
Research suggests that wastewater disposal can induce earthquakes tens of kilometers away from the wellbore, complicating seismic hazard assessments and maps. The study's findings have significant implications for critical structures such as dams and nuclear power plants.
The Lancet and The Lancet Respiratory Medicine publish review articles on outdoor air pollution, asthma genetics, and preschool wheeze diagnosis to improve asthma control, prognosis, and personalized treatment approaches.
A new study from Northwestern Medicine and the University of Illinois at Chicago finds that vitamin D deficiency is a predictor of aggressive forms of prostate cancer diagnosis in African-American and European-American men. Regular screenings for vitamin D deficiency could be crucial to prevent advanced tumor progression.
Scientists found that smelling certain steroids affects people's perception of movement as masculine or feminine, depending on their biological sex and sexual orientation. The study reveals a sexually dimorphic response to pheromones in both heterosexual and homosexual individuals.
A new study from the University of Liverpool surveyed 1,821 people in Guangdong to understand how diseases such as bird flu spread among communities. The research found that people met around ten others each day and spent between five and ten hours a day with other people.
Researchers successfully coaxed induced pluripotent stem cells from infertile men into producing sperm cell precursors after transplantation into mice testes. This breakthrough helps explain genetic causes of male infertility and holds potential for clinical applications.
Scientists have discovered that endogenous dendritic cell-derived interleukin-27 promotes tumor growth by recruiting regulatory T-cells. This finding suggests that targeting IL-27 could lead to more effective cancer immunotherapies.
A study analyzing tree rings reveals that droughts in the Rocky Mountains can be even more severe than the 1930s Dust Bowl, with some scenarios suggesting prolonged periods of below-average stream flow and intense droughts like 1580's record low river flow.
A study published in Journal of Clinical Oncology found low transmission rates among long-term partners of patients with oral HPV infection. The prevalence of oral HPV among partners was comparable to the general population, confirming that couples do not need to change their intimacy due to cancer diagnosis.
Researchers at Penn State found that smokers who gained weight in past attempts to quit are less likely to seek treatment. Clinicians can address concerns about weight maintenance in treatment plans, suggesting a targeted approach to support quitters.
The Lancet Psychiatry article highlights the underuse of mental health resources among individuals struggling with suicidal thoughts. According to researchers, approximately 60% of people experiencing suicidal ideation or behavior do not receive treatment, underscoring the need for more effective psychological interventions and increas...
A new investigation in the Canadian Journal of Cardiology challenges the long-held recommendation to include oily fish in a heart-healthy diet. Researchers found that Greenland Eskimos, who were initially believed to have low rates of coronary artery disease, actually suffered from CAD at the same rate as other populations.
Researchers studied the competition of multiple Gortler modes in hypersonic boundary layers, highlighting the importance of the trapped-layer mode (mode T) in flow transition. The study found crossovers between mode T and W with specific parameters.
A new study published in Cell Reports demonstrates that mice lacking one copy of the CTCF gene are predisposed to cancer due to abnormal DNA methylation. The research also reveals deletions or mutations in CTCF are common events in breast, endometrial, and other human cancers.
Researchers found that combining EPA with statins reversed endothelial damage more effectively than statins alone. The combination showed a potent interaction in reducing cardiovascular risk.
Researchers at San Francisco State University found that material buyers who purchase life experiences are not happier due to a lack of identity expression. Similarly, spending money on material items does not improve their happiness levels either.
Two UT Southwestern doctors have received grants to test the effectiveness of itraconazole on lung cancer pathways and growth. The researchers aim to disrupt communication between tumor cells and their surrounding environment, slowing cancer growth.
Corn yields in central US sensitive to drought conditions increasing over past two decades. Farmers may be pushing limits of productivity under extreme heat and dryness.
Researchers discovered genetic variation influencing immune cell function is linked to increased risk of neurodegenerative diseases like Alzheimer's. The study found a striking enrichment of functional effects in monocytes for these variants, highlighting the potential role of immune system cells in human disease pathology.
A study from the University of Waterloo found a correlation between abnormal binocular vision, general health, and antidepressant use in older adults. Binocular vision disorders affect depth perception and may increase fall risk, affecting up to 38% of those over 80 years old.
A study analyzing Eurovision voting patterns over two decades found that cultural and geographical factors drive support for certain countries' acts, rather than prejudice. The analysis revealed clusters of countries with similar voting behaviors and identified the probability of each country belonging to a particular bloc.
Research suggests that Midwest corn and soybean yields could drop by 15-30% over the next half-century due to harsher drought conditions. The study, published in Science, found that corn and soybeans are becoming increasingly sensitive to drought, with yields struggling in dry conditions in Iowa, Illinois, and Indiana.
Researchers found that individual variations in the genetic code can collectively produce significant changes in an organism's physical characteristics, depending on other variants. This study may help explain the 'missing heritability' problem, where additive genetic variants do not entirely explain many inherited diseases and traits.
A stress-diathesis theory explains why only a small minority of individuals are at risk of suicidal behavior after exposure to stressful life experiences. Biomarkers based on genetic effects and brain imaging may help detect high-risk individuals.
A new study finds that climate change and urbanization are threatening Ohio butterflies, with eight species showing significant delays in lifecycle events. The findings suggest that these changes may render the species unfit for parts of the state, highlighting the importance of monitoring butterfly populations.
Researchers develop tools to help land managers and biologists identify areas where fish removal can protect amphibians from climate-induced habitat loss and predation. New hydrologic models and remote-sensing techniques can be used to map wetlands and evaluate the effects of projected climate change.
Researchers at VCU Massey Cancer Center have developed a novel combination therapy that reduces Mcl-1 expression and disrupts its interactions to effectively kill multiple myeloma cells. The therapy combines Chk1 and MEK inhibitors, showing promise in overcoming resistance caused by high expressions of Mcl-1.
A clinical study by Pennsylvania State University found that consuming one Hass avocado daily as part of a moderate fat diet significantly decreased low-density lipoprotein particle number and small, dense LDL cholesterol in overweight and obese subjects. The researchers observed a significant lowering of oxidized LDL particles, sugges...
A new experimental drug has been developed that inhibits the aging protein PAI-1, quadrupling the lifespan of rapidly aging mice. The drug, TM5441, also protects organs from accelerated aging and may one day be used to treat human diseases like chronic kidney disease and diabetes.
Scientists at Lawrence Berkeley National Laboratory have recorded the first observations of strong nonlinear optical resonances along the edges of a single layer of molybdenum disulfide. These one-dimensional edge states are key to enabling novel nanoelectronics and photonic devices.
EPFL scientists have discovered a new relationship between cell shape and migration efficiency, explaining how cells move using a simple model of liquid droplets. The study found that spherical cells are faster movers, and this phenomenon is influenced by surface characteristics.
A study by the Department of Energy's Pacific Northwest National Laboratory found that commercially available sonar systems produce signals within the hearing range of killer whales and other marine mammals. The sounds are quiet but audible to animals beyond a few hundred meters, potentially affecting their behavior.