A new study reveals that mitochondrial disease patients often undergo more than eight physician visits and experience multiple misdiagnoses before being correctly diagnosed. The most common misdiagnosis was for psychiatric disorder, followed by fibromyalgia and chronic fatigue syndrome.
A new study finds that top sports leagues heavily promote unhealthy food and beverage sponsors, contributing to the escalating obesity epidemic among children and adolescents. The researchers analyzed Nielsen statistics and found that over three-quarters of promoted foods failed to meet minimal nutrition standards.
Researchers at the University of Johannesburg have discovered a new family of economical silver-based complexes that show very promising results against various human cancers. These complexes, such as UJ3, are selective and have low toxicity, making them a potential alternative to existing chemotherapy drugs.
The researchers' hypothesis is confirmed by laboratory experiments and molecular dynamics calculations, which show that chiral arrangements of water molecules enhance material transport through the membrane.
A randomized controlled trial found that varenicline significantly reduced smoking in patients with heart attack over the following year. The study showed that about 40% of participants who received varenicline were not smoking at one year, compared to 29% in the placebo group.
The American College of Physicians releases a new position paper advising physicians on ethical obligations when participating in short-term global health experiences. Key findings include the importance of partnering with local leaders and minimizing potential burdens on local communities.
Most antibiotic courses for acute sinus infection in adults exceed five days, despite guidelines recommending a maximum of seven days. The study analyzed over 3.7 million visits by private practice physicians and found that nearly 70% of prescribed treatments lasted longer than 10 days.
A new study predicts that half of Alberta's upland boreal forest will disappear by 2100, replaced by young deciduous forests and grasslands. The research, conducted by University of Alberta biologists, took into account wildfire disturbance and climate change over a 100-year period.
Scientists have created an ultra-thin fiber-based endoscope that can image neurons firing in living mice, offering new insights into brain function. The device is five times thinner than the smallest commercially available microendoscopes and allows for deeper brain imaging without damaging tissue.
A new application of data analysis and visualization techniques has been developed to improve the representation of multidimensional materials data. This approach enables scientists to extract useful relationships among properties, facilitating discovery and industrial use in nanomaterials research.
A three-year NSF grant will support the St. Elmo Brady Academy program, which targets fourth- and fifth-grade African-American and Latino boys in Houston's schools. The project aims to encourage a positive perception of math and science among these students through hands-on engineering activities.
A recent study by the University of Eastern Finland found that initiating opioid analgesics reduces the use of antipsychotics and benzodiazepines in persons with Alzheimer's disease. This decrease was observed without worsening behavioural and psychiatric symptoms.
A study found that three key factors contributed to collective action in rescuing Tutsi during the genocide: biographical availability, socialization, and situational context. Many rescuers were older, had higher socioeconomic status, and came from families with a history of saving Tutsi.
A new study suggests that psyllid nymphs infected with Candidatus Liberibacter asiaticus exhibit resistance to the bacteria's effects, thanks to symbiotic bacteria in their gut. Researchers aim to understand and reverse this mechanism to develop a management strategy for citrus greening.
A recent study analyzed the social networks of 19 male chimpanzees, revealing how power struggles and competition for mates led to the division of the chimp community. The findings suggest that internal conflicts can have far-reaching consequences in primate societies.
A research team has found a way to understand and manipulate charge transfers in molecular junctions, enabling the creation of predictable molecular diodes. This breakthrough has significant implications for the field of chemistry and could lead to novel electronics applications.
A study from the University of Sheffield found that a rapid switch from coal to natural gas in Britain resulted in a 6% decrease in emissions. The key factor behind this reduction was effective carbon pricing, which incentivized the fuel switch.
Researchers at Uppsala University discovered a peptide toxin in the bootlace worm that can paralyze and kill crustaceans and cockroaches, with potential applications in agricultural insecticides. The toxin affects sodium channels, causing electric signalling in nerves and muscles, leading to paralysis.
Researchers analyzed sedimentary rocks and found light lithium isotopes in South China's seawater, potentially linking terrestrial and marine ecological crises. The findings suggest a connection between the Siberian Traps' eruptions and the Permian-Triassic mass extinction event.
Researchers have identified a specific sugar found on aggressive breast cancer cells that can be used as a biomarker to detect high-risk patients. This discovery aims to improve screening for early-stage breast cancer patients, reducing unnecessary treatments such as chemotherapy or radiation.
A team of researchers found that lung tumor cells can revert to a developmental program similar to their nearest relatives when a key gene is lost. This discovery highlights the remarkable resilience and adaptability of cancer cells.
Researchers captured microglia nibbling on brain synapses for the first time, showing they help synapses grow and rearrange. The findings suggest that microglia may actually strengthen synapses rather than weaken them.
A study of 3024 women found that serotonin reuptake inhibitors in late pregnancy were not linked to low milk supply, but those with underlying psychiatric illnesses were at greatest risk. The findings highlight the importance of providing mental health support during breastfeeding.
Researchers propose a new concept to uncover connections between brain regions and cognitive functions, using a bottom-up approach. Recent advances in statistical methodology and brain imaging data provide the basis for this new method, which could help reveal the core functions of brain areas.
Researchers at Oregon State University have created cell-penetrating nanomaterials that can deliver molecular drugs and cargo into cells. The nanodrills, with distinct shapes resembling drill bits, showed a strong capacity for encapsulating guest molecules for therapy or imaging.
A study by Michigan Medicine and Rutgers New Jersey Medical School found Flint childhood blood lead levels decreased from 11.8% in 2006 to 3.2% in 2016, with a historic low of 1.15 micrograms per deciliter in 2016. A random spike in blood lead levels was also observed between 2010 and 2011.
Researchers found that diploids, with two copies of the genome, evolve more slowly than haploids, which have only one copy. The team also discovered that beneficial mutations in diploids look different from those in haploids.
A new study published in Limnology and Oceanography Letters shows that lake size and nutrients significantly impact greenhouse gas emissions from lakes into the atmosphere. The research found that methane, emitted from lakes in bubbles, is the dominant greenhouse gas coming from lakes globally.
A study found that prenatal choline intake increases grey and white matter in piglets' brains. Piglets from mothers with sufficient choline had higher concentrations of grey and white matter, while those from deficient mothers had smaller brain regions.
Researchers have discovered that human cytomegalovirus (HCMV) differentiates human hematopoietic progenitor cells into a long-lived, immunosuppressive monocyte subset for viral latency. This unique cell population is identified through specific surface proteins and can evade the T-cell immune response.
Researchers report lower surface water bodies in western US, while eastern half experiences greater variability and increased areas in the Southeast US and Great Plains.
The introduction of tamper-resistant oxycodone in Australia led to a decrease in dispensing rates for higher-strength formulations among people under 65 years old. However, poisonings from injected oxycodone remained unchanged despite this shift.
A team of researchers from institutions at the leading edge of palaeoproteomics have published guidelines to support good practices in the field and ensure robust, reproducible results. The guide aims to provide consistency to a new field, addressing issues such as data reporting standards, authentication measures, and lab contamination.
Researchers at Wyss Institute developed a CRISPR/Cas9 genome surveillance tool to prevent point mutations in human DNA. The approach enhances Cas9's specificity, allowing for the removal of deleterious genetic variants.
A new study suggests that adopting plant-based diets could increase global food production by 50-200 times, making it a game-changer for addressing hunger and food waste. By replacing animal-based foods with edible crops, researchers estimate that 350 million more people could be fed with the same land resources.
Research estimates vulnerability and extinction risk of migratory species from different regions and ecosystems worldwide. Migratory animals face barriers such as roads, dams, and urban development, which can lead to population decline and increased extinction risk.
Researchers at the University of Manchester have found that an anti-inflammatory drug, Kineret, significantly reduces levels of inflammation in patients with ischemic strokes. The study, funded by the Stroke Association, shows promise for fast and effective treatment of stroke, but further trials are needed to confirm its effectiveness.
Research conducted with 147 Dutch children found that structured music lessons significantly enhance cognitive abilities, including language-based reasoning and short-term memory. Visual arts classes also showed a benefit, improving visual and spatial short-term memory.
Researchers found that banks increase loan interest rates for borrowers with peer firm restatements and more severe customer firm restatements, impacting business relationships and credit scores.
The study used LC-HRMS/MS to identify two main metabolites of Nitroproston in rat plasma: 1,3-GDN and PGE2. In human whole blood, Nitroproston biodegradation rate was the slowest, occurring more rapidly in whole blood. This suggests that metabolism is mainly associated with RBC fractions.
Researchers at Penn State have identified key steps and proteins involved in cellulose synthesis, a crucial process for biofuels. The study's findings may lead to more efficient breakdown of cellulose for renewable energy production.
The study reveals a clear correlation between structural order and dynamics in supercooled liquids, indicating that glass formation is thermodynamic. The researchers found that the link between slow alpha and fast beta modes has a common structural origin, resolving two issues at once.
A new portable device worn like a visor can detect severe stroke in patients with over 90% accuracy, allowing for timely and comprehensive care. This device simplifies the decision-making process for emergency personnel, enabling them to quickly identify patients who require endovascular therapy.
Gene expression studies reveal genes involved in stress response signaling in streptophyte algae, the ancient ancestors of land plants. These findings provide insight into the evolution of land plant stress response mechanisms.
Researchers have developed a new method to culture cells from rainbow trout guts, enabling the assessment of chemical toxicity without live animals. This breakthrough could significantly reduce the number of fish required in toxicology studies, aligning with 3Rs principles.
Research suggests that age-related disruptions in sleep are not due to changes in individual neurons' activity. The study found similar effects of sleep deprivation on local sleep oscillations across different age groups.
Scientists have built a computational microscope that can simulate atomic and subatomic forces driving molecular interactions. The tool streamlines efforts to understand chemistry, model large systems, and develop new pharmaceutical agents.
A global project aims to create a detailed, virtual 3D model of the pancreatic beta cell and its components within five years. The project involves experts from various fields and is expected to provide new insights into understanding diabetes.
UC Berkeley engineers create a millimeter-wide, transparent light-emitting device using monolayer semiconductors. The device can emit bright light when turned on and become see-through when turned off, opening possibilities for invisible displays.
Researchers analyzed 732 Formula One races to find that drivers of similar status, age, or competing in safe conditions are more likely to experience collisions. The study suggests that targeting these factors could aid in preventing conflicts among drivers.
A summer enrichment experience in South Carolina significantly improves students' biomedical knowledge by 38 percent, raising their understanding of how to prepare for medical school by 34 percent. The program aims to address physician shortages by recruiting more future physicians from underrepresented minority communities.
The study reveals a tendency for duplication in the 9p21.3 sequence associated with coronary artery disease, which may affect predisposition to CAD. Sequence analysis shows varied repeats with 10-15 SNPs between each other and 82 SNPs between the human genome sequence.
A recent study found that e-cigarette users were less likely to abstain from tobacco at 6 months compared to non-users. However, this finding may not be representative of the general population, and more research is needed to determine the efficacy of e-cigarettes in smoking cessation.
Researchers Emily Setton and Prashant Sharma discovered that spiders and scorpions co-opted leg genes to build their heads. This genetic adaptation allows scientists to trace the evolutionary history of these animals, revealing a complex web of genetic mechanisms underlying their diversity.
Researchers used the Advanced Photon Source to identify naturally occurring water at 410 kilometers below the Earth's surface, in the form of Ice-VII, a cubic crystalline form of water. This discovery could change our understanding of how water circulates deep in the Earth's mantle and how heat escapes.
A study published in ZooKeys reveals that a population of guppies was introduced to an oceanic archipelago in Brazil through human activity. The researchers suggest that the species was likely brought to the island as part of an effort to control mosquito populations, but cannot rule out natural dispersal as a possibility.
A new study reveals that global antibiotic use increased by 39% between 2000 and 2015, with significant increases in low-income and middle-income countries. The study highlights the need for strategies to reduce unnecessary antibiotic use and support alternatives to address the growing threat of drug resistance.
Researchers at EPFL discovered that the circadian clock orchestrates gene expression by regulating chromatin structure, affecting protein synthesis and physiological processes. The study found that promoter-enhancer looping oscillates along the 24-hour cycle, controlled by the circadian clock.
Researchers assess whether extreme weather events like Hurricane Harvey impact invasive pests, pollinators and other species. The team evaluates changes in ant communities to determine if floods accelerated the invasion process by invasive fire ants and tawny crazy ants.
A themed issue in Philosophical Transactions of the Royal Society B gathers researchers exploring collective movement ecology, merging movement ecology and collective animal behavior. New technologies and data from wild groups are being integrated to inform conservation decision-making.