A Phase 2 trial found that maraviroc-containing regimens are as safe and well-tolerated as TDF and emtricitabine when used as PrEP to prevent HIV infection in high-risk men. Five participants became infected with HIV during the study, but their low drug levels suggested inconsistent use of PrEP.
A study published in JAMA Cardiology found significant variations in US hospital cardiac arrest care quality. Hospitals with better adherence to recommended guidelines have higher survival rates for patients treated for in-hospital cardiac arrest. The researchers estimate that an additional 22,990 to 24,200 lives could be saved annuall...
A comprehensive analysis of 526 NBA players reveals larger left ventricular cavity sizes, but not necessarily indicative of increased risk. Most athletes have normal left ventricular ejection fractions, with African American athletes showing increased wall thickness and mass compared to white athletes.
Scientists create a computer simulation that grows realistic forests down to individual trees to predict how climate-related changes will affect fire rates, plant growth, and forest recovery in Quebec hardwood forests. The 'LES' model can help identify necessary species for reestablishing forests after wildfires and other disturbances.
A new study published in the Journal of Clinical Psychiatry shows that genetic counseling is valuable for patients with schizophrenia, bipolar disorder, and similar conditions. Genetic counseling helps clarify misconceptions about the cause of psychiatric illnesses and reduces feelings of guilt and distress.
A study published in Annals of Emergency Medicine found ketamine to be an effective and safe sedation agent for patients with acute behavioral disturbances who do not respond to traditional methods. Only 10% of patients treated with ketamine required additional sedation or failed to achieve sedation within a set time frame.
The HPTN 073 Study found that a novel coordinated counseling and care approach resulted in high uptake of PrEP among BMSM, suggesting a lower rate of HIV infection. The study showed that 92% of participants completed the 12-month follow-up and 79% accepted PrEP.
Emerging genetic tools for mitochondrial DNA replacement offer the potential to prevent a multi-system genetic disease, but also raise questions about unintended risks to children and their descendants. The tools aim to prevent mother-to-child transmission of mitochondrial DNA disease.
Jacquet aims to identify expected winners and losers of closing the high seas to fishing and explore feasibility of changing fisheries policies. Her research focuses on large-scale cooperation dilemmas like climate change and wildlife exploitation.
Black adults have higher cardiovascular disease risk compared to non-Hispanic white adults. A study validated risk prediction models for CVD incidence in black adults, showing modest improvement over standard risk factors and biomarkers.
A new study found that a single embryonic rule regulates hominin tooth size, with variations in the expression of this rule accounting for differences in tooth size throughout human evolution. The researchers discovered that the inhibitory cascade pattern for adult molars is directly linked to the size of milk molars.
A survey of 1400 endangered species found 78 vulnerable to nitrogen-induced harms. Nitrogen's impacts on biodiversity are diverse, including direct toxicity, depleted oxygen, and invasive species that outcompete native populations.
A Phase 2 study found that patients treated with MultiStem therapy experienced a complete or near full recovery from their stroke after one year, with 23.1% achieving this outcome compared to 8.2% of placebo patients. The therapy appears to reduce local inflammatory response and protect neurons in the brain.
A new study suggests that the available budget for carbon dioxide emissions is on the low end of previous estimates, lending urgency to addressing climate change. The researchers propose a limit of 590-1240 billion tons CO2 from 2015 onwards to keep global warming below 2°C.
A Concordia researcher collaborated with individuals with intellectual disabilities to create personal video testimonials using iPads, showcasing their capabilities and successes. The study highlights the empowering potential of mobile technologies in promoting autonomy and inclusion.
Researchers at Arizona State University have developed a simpler method to produce antibodies against a range of infectious agents using DNA-based genetic immunization. The technique successfully expressed membrane proteins in mice and induced the animals to produce critical antibodies to bacterial and viral targets.
A team of scientists led by UH professor Liming Li analyze Cassini spacecraft data to understand the seasonal changes on Saturn. They also examine the energy budget for Jupiter and Saturn to better comprehend planetary climate evolution.
Researchers found that carbon nanomaterials, like C60 molecules, can enter immune cell membranes without triggering a response. This passive entry allows the materials to escape and evade the cell's disposal mechanisms.
A new climate model developed by the University of Wisconsin-Madison can better predict changes to the ocean-carbon sink, a crucial factor in understanding future climate change. The improved predictive capacity allows scientists to distinguish human-induced effects from natural variability.
A new species of blue-tailed monitor lizard unique to Mussau Island has been described, with distinct features including a pale yellow tongue and turquoise pigmentation. The lizard plays a crucial ecological role in the island ecosystem as a top-predator and scavenger.
A new study from the University of Southampton found that inland freshwater fisheries with higher biodiversity have higher-yielding and more stable fisheries. The research suggests that maintaining healthy freshwater systems is critical for food security and livelihoods, particularly in developing countries.
The European Union's complex and unpredictable decision process is hindering the introduction of genetically modified trees to the market. The current procedure involves extensive risk analyses, which are costly and time-consuming, making it difficult for scientists to predict the long-term consequences of GM tree use.
Conservatives tend to use nouns instead of adjectives to describe things, preferring clarity and predictability. This linguistic preference is linked to the values associated with conservatism, such as stability and tradition.
A new device, IS2B, developed by Arizona State University researchers accurately measures chemical contamination in water and sediment. The tool assesses the bioavailability of hazardous chemicals, which is essential for understanding health risks from pollution.
A Rice University study explores how opposition from target countries influences the expansion of state-owned enterprises. The authors identified five geopolitical factors that shape the level of welcome, including geographic distance, similarity of religious beliefs, government types, resource complementarity, and nationalist politics.
The VA has robustly implemented antibiotic stewardship practices across its facilities, with over 80% having an Infectious Disease specialist on staff. Formal policies and staffing patterns promoting appropriate antibiotic use were also widespread.
A study led by Dr Alistair Evans from Monash University has simplified the understanding of human tooth evolution, allowing for predictions on missing teeth. The 'inhibitory cascade' rule reveals a pattern in tooth size that was previously thought to be more complex.
A recent study by researchers at the University of California, Davis, found that gamers using thin avatars showed increased physical activity compared to those using obese avatars. The study replicated previous findings on both male and female participants.
Researchers have adapted the Trombe wall design to heat and cool buildings, reducing carbon emissions and fossil fuel use. The new system uses wind and solar energy to provide a comfortable indoor temperature all year round.
Researchers develop adaptive therapy that adjusts drug dose based on tumor response, controlling growth and allowing 60-80% of mice to be weaned off the drug. The treatment approach stabilizes tumors by maintaining a small population of drug-sensitive cells to suppress resistant cell growth.
The study provides information that can be incorporated into clinical assessments for the prevention of cardiac emergencies in basketball players. The analysis reveals that left ventricular cavity sizes in NBA players are larger than in normal adults, but proportional to body size.
Researchers develop new material to collect condensed water droplets using bio-inspired approach combining multiple natural systems. The material harnesses the power of desert beetles' bumps, cactus spines and slippery surfaces to facilitate condensation, promising applications in thermal power plants.
A study published in Scientific Reports found that birds migrating greater distances have more new neurons in brain regions responsible for navigation and spatial orientation. The research team discovered a trend of increasing new neurons in line with migration distance, with different brain regions affected in two species.
A new study reveals that pancreatic cancer is composed of four distinct subtypes, each with its own unique genetic profile and treatment possibilities. These findings have significant implications for diagnosis and treatment, potentially allowing for more accurate prognoses and targeted therapies.
A new study by Simon Fraser University researchers found that differences in working memory capacity correlate with the brain's ability to actively ignore distraction. Individuals with low memory capacity are unable to suppress distractors, leading to attentional deficits.
A UT Dallas study found that student-athletes with lowest GPAs reported viewing themselves as athletes over students, thinking about sports more than academics. Coaches may play a strong role in academic performance, and universities must ensure proper guidance for success.
Researchers found that omega-3 supplementation reduced breast density in postmenopausal women with a body mass index above 29, bordering on obesity. The study suggests that DHA alone may be preferentially protective in these individuals, offering an example of personalized approach to breast cancer prevention.
Scientists have found that ocean acidification is already slowing coral reef growth, with the potential for widespread devastation if left unchecked. Researchers manipulated seawater chemistry in a natural ecosystem to determine the impact of excess CO2 on coral reefs.
The International Terrestrial Reference Frame (ITRF) has been updated by NASA, enabling more detailed studies of global changes in Earth's ocean, ice sheets, land, and atmosphere. Four measurement techniques, including Satellite Laser Ranging and GNSS, contribute to the reference frame.
Researchers at CNIO have developed a gene therapy to repair telomeres, delaying ageing and potentially treating aplastic anaemia. The treatment uses virus-delivered telomerase enzyme to extend telomeres, increasing blood cell production.
Researchers at Ohio State University have engineered new calcium receptors to enhance or preserve heart function in mice without harmful effects. The study shows improved cardiovascular performance and reduced mortality compared to control groups.
Researchers at Dana-Farber Cancer Institute propose securitized consumer healthcare loans to spread the cost of therapies over many years, making them more accessible to patients. This approach aims to generate attractive returns to investors while providing affordable access to life-saving drugs and cures.
A new report from the American Brain Tumor Association reveals that malignant brain tumors are the most common cause of cancer-related deaths in adolescents and young adults aged 15-39. The study, which analyzed data from 2008-2012, also found a shift towards high-grade tumors with increasing age.
A new study demonstrates that pediatric patients with asthma who received their medications in hospital are more likely to avoid emergency department visits. The 'Meds-in-Hand' program, which provides on-site pharmacy delivery, significantly reduced ED visits and improved patient outcomes for discharged children with asthma.
Researchers at the University of Bath created a new laser capable of pulsed and continuous mid-infrared emission between 3.1-3.2 microns, overcoming a major challenge in laser development. The achievement uses silica hollow-core fibers to confine light and gas, enabling efficient interaction and mid-IR emission.
Research found that wastewater treatment plants are a significant source of microplastics in rivers, with particles traveling up to 2 kilometers downstream. The microplastics were home to potentially harmful bacterial communities, highlighting the need for improved filters and treatment processes.
Researchers found that Humboldt penguins' unique feather structure is anti-adhesive and hydrophobic, preventing ice from accumulating. The discovery led to the creation of a nanofiber membrane with similar properties, which could be used in applications like electrical insulation.
A new study found that differences in gene expression patterns in youth can predict longevity. Genes involved in energy production are less active, leading to longer lifespan. Researchers also discovered a potential link between mitochondrial function and longevity.
A novel coordinated care program helped black men who have sex with men adhere to pre-exposure prophylaxis (PrEP), a medication regimen that prevents HIV infection. Nearly 80% of participants agreed to take PrEP, and 70% had protective levels in their plasma at the midpoint.
Adherence to guideline-recommended care following in-hospital cardiac arrests (IHCA) varies significantly among US hospitals, affecting patient survival. Top-performing hospitals have higher survival rates due to timely and high-quality care.
A study published in JAMA Cardiology found that cardiovascular disease risk prediction models developed with predominantly white populations are effective in black adults. The models were validated using data from the Jackson Heart Study and compared to existing algorithms.
A new study suggests that traditional assessment methods overestimate the vulnerability of salt marshes to sea-level rise. Salt marshes can generally survive higher rates of sea-level rise than predicted by current models, thanks to their ability to grow vertically and migrate landward.
A team of geneticists found that the R2d2 gene distorts cell division, leading to fewer offspring and violating Darwin's principle of natural selection. The discovery has implications for fields like basic biology, agriculture, and human health.
Tropical Cyclone Winston has weakened significantly due to strong vertical wind shear, with strongest storms pushed south of the center. The storm is expected to move south-southwest and weaken further, becoming sub-tropical south of New Caledonia.
Researchers from the University of Exeter are leading a European Commission-funded project to develop strategies for meeting climate change challenges on water, food and energy provision. The SIM4NEXUS project will investigate how policy makers can create sustainable integrated management systems.
Researchers have observed that three years after its explosion, the brightness of a type Ia supernova continues to shine brighter than expected. This finding suggests that the powerful explosions produce an abundance of heavy cobalt, which provides an extra energy boost.
An Ibero-American team has sequenced the Mesoamerican common bean genome, which will aid in improving production and conserving genetic varieties. The discovery has significant implications for agriculture, as it will help identify genes involved in disease resistance, drought tolerance, and seed quality.
Researchers have found that laser ablation creates a temporary opening in the blood-brain barrier, allowing chemotherapy drugs to pass into the brain. This breakthrough raises hopes for longer treatment options and improved patient outcomes.
A new cloud software tool called EucaTool estimates eucalyptus production in Galicia. It allows users to calculate growth and future production by measuring four stand variables.
A team of scientists has confirmed that a 'fast radio burst' originates in the distant universe, using CSIRO radio telescopes and the National Astronomical Observatory's Subaru telescope. The breakthrough allows researchers to weigh the normal matter in the universe, confirming the presence of missing ordinary matter.