A study of 15,792 US adults found a significant decrease in stroke incidence and mortality rates over two decades, with decreases seen across age groups. The decline was attributed to improved control of risk factors such as hypertension, smoking cessation, and diabetes management.
Researchers discovered that hidden differences in neural circuits can account for varying responses to brain injury. The study used sea slugs and found that artificially rewiring the neural circuit made some animals susceptible or invulnerable to injury.
Chemists have made a breakthrough in visualizing hydrogen bond interactions, which play a key role in biological molecules and pharmaceuticals. Using two-dimensional infrared spectroscopy techniques, researchers directly observed the coordinated vibrations between hydrogen-bonded molecules.
Researchers have found that mental health patients are at their highest risk of dying by suicide in the first two weeks after leaving hospital. The study, which analyzed data from 2002 to 2012, shows that around 3,225 patients died by suicide within three months of discharge, with 526 deaths occurring within the first week.
A study examined the interest level of over 300 African American adults in genetic testing for alcohol dependence susceptibility, with some expressing concern over privacy and testing methods. The results suggest that more research is needed to address these concerns and establish effective genetic counseling strategies.
Researchers used shotgun metagenomics to sequence DNA from a calcified nodule in a 700-year-old skeleton, recovering the genome of Brucella melitensis, a disease causing fevers and arthritis. The ancient strain was closely related to recent strains found in Italy, providing insights into medieval infections.
Researchers found that adolescent males desire intimate and caring relationships, expressing vulnerability and dependence, and placing great importance on trust. The study provides a nuanced understanding of adolescent males' early relationships, which contrasts with traditional portrayals of younger male behavior.
Scientists have found that the spotted green pigeon and dodo are descended from 'island hopping' ancestors, according to a new study. The birds show signs of semi-terrestrial lifestyle and ability to fly, with genetic links to other island-dwelling species.
A study found that physicians in Ontario, Canada were more likely to be registered for deceased organ donation than matched citizens or the general public. The majority of registered physicians, 47%, were more likely to register due to younger age and female status.
A new study has identified a previously unknown mechanism used by neurons to survive, which is also hijacked by brain cancer cells. The discovery may lead to new investigations of brain cancer treatments and provide insight into Parkinson's disease.
A new algorithm-based method uses EMR data to identify patients with newly diagnosed HIV infection, improving clinical outcomes. The method was validated and tested on patients undergoing HIV testing from 2006-2012.
Researchers at Purdue University have identified a soybean gene that affects plant stem growth, leading to improved soybean cultivars for the northern United States. The discovery could result in semideterminate soybeans that are better suited to the region's climate and growing conditions.
A new study by researchers from NIST and the Hollings Marine Laboratory found that persistent organic pollutants (POPs) are not linked to fibropapillomatosis, a disease causing tumors in green sea turtles. The team detected halogenated phenols in turtle tissues, suggesting these compounds may be coming from algae in their diet.
A new study found a possible genetic link between cerebral palsy and family ties, with increased risks seen in twins, first cousins, and closer relatives. The study identified a stronger recurrence rate among co-twins of affected children and families with an affected single child.
A new mathematical model suggests that implementing Xpert MTB/RIF as part of a more ambitious rollout strategy, including private sector engagement and referral networks, could reduce TB incidence by 14.1% in India. The current narrow implementation strategy is expected to only reduce incidence by 0.2%.
Researchers found that engaging stakeholders early, being pragmatic rather than perfect, using existing research networks and delegating tasks can help streamline healthcare research. These streamlined mechanics allowed the project to complete data collection in under 18 months.
Researchers used sociometers to analyze social interactions of men and women in two settings, finding that women were more collaborative and talkative when working together, but not necessarily more talkative overall.
Scientists transplanted inhibitory neuron progenitors into two mouse models of Alzheimer's disease, improving learning and memory abilities. The treatment replenished brain cells lost due to apoE4, regulating brain activity.
A new raptorial dinosaur fossil named Changyuraptor yangi has shed light on how larger-bodied dinosaurs took to the air, with exceptionally long feathers playing a crucial role in safe landings. The 125-million-year-old fossil, found in China, confirms that flight preceded the origin of birds and was not limited to small animals.
Researchers found that blood clots are rare in children undergoing spine operations, and most patients can be safely monitored without anti-clotting medication. High-risk groups include children with congenital scoliosis or spinal curvatures part of a syndrome, as well as older children.
A WPI research team will test a plant-based therapy for malaria that may be highly effective and low-cost. The therapy uses dried leaves from the sweet wormwood plant, Artemisia annua.
Chrysophanol alleviated hippocampal neuronal cytoplasmic edema and improved learning and memory abilities in lead-exposed neonatal mice. The compound also reduced oxidative stress markers and increased antioxidant defenses.
Researchers at Saint Louis University discovered that deleting disordered sections of a protein's structure reveals the molecular mechanism of blood clotting. By crystallizing prothrombin, they found that the deleted version is activated to thrombin faster and provides key information on the mechanism of prothrombin activation.
Researchers discovered cholesterol's activation of a signaling pathway linked to cancer growth and division. Elevated cholesterol levels may selectively promote cancerous pathways, providing a new mechanism for cancer risk.
A new study found that over 80% of oral health patients are willing to receive rapid HIV-testing in dental settings. The test can be done with a simple finger prick or saliva swab and results available within 20 minutes. This could help inform people who aren't aware they're HIV-positive and reduce the spread of the virus.
A systematic review of 17 research studies found that outdoor spaces can reduce residents' agitation and provide environments for relaxation and social interaction. Gardens could offer welcome spaces for visitors to stimulate memories for dementia patients.
Individuals with Body Dysmorphic Disorder (BDD) experience heightened fear of rejection due to their appearance, leading to diminished quality of life. The study found associations between BDD severity and depressive symptoms, poorer mental and physical health.
Dr Zulfiqar Bhutta believes that criminal sanctions are necessary to deter research misconduct, citing high rates of scientific misconduct and significant human health consequences. However, Dr Julian Crane argues that criminalization would undermine trust in research and is not an effective deterrent.
Researchers at Rice University developed a single-molecule sensor using Raman spectroscopy and an optical amplifier, amplifying the optical signature of molecules by about 100 billion times. This technique has the potential to identify unknown molecules without prior information.
Typhoon Rammasun made landfall in the eastern part of central Philippines on July 15, with NASA's Aqua and TRMM satellites tracking its eye close to landfall. The storm brought moderate to heavy rainfall across the region, with cloud top temperatures indicating potential for severe weather.
Researchers have discovered a way to create thermoelectric materials with low thermal conductivity by incorporating porous substances. This design allows for more efficient conversion of heat to electricity, making it a promising material for future green tech devices.
The researchers created a series of 3D prototypes with boron nitride, predicting enhanced strength, toughness, and heat transfer. The 3D nanostructure offers customized applications and potential for efficient gas storage and separation.
Researchers at Kansas State University have found that bacteria can acquire iron from the environment using tiny protein loops on their surface. These protein loops are similar to fingers and can open or close to grab iron molecules, allowing the bacteria to establish an infection.
A telephone-delivered telecare intervention improved chronic musculoskeletal pain compared to usual care, with nearly twice as many patients experiencing a 30% reduction in pain score. The intervention was associated with clinically meaningful improvements in pain and treatment satisfaction.
Prostate cancer in younger men is more frequent and aggressive, with tumors growing quickly. Genetic mutations are a key factor in these cases, which may require increased surveillance or counseling.
The Van Allen Probes have found a two-fold process that accelerates particles in the radiation belts, with an initial boost followed by electromagnetic waves called Whistlers. This mechanism helps explain how electrons reach intense speeds, damaging spacecraft and affecting astronauts.
A new study published in JAMA found that patients enrolled in a 12-month telecare program experienced significant improvement in chronic pain management, with twice the likelihood of pain reduction compared to usual care. The program also showed increased patient satisfaction.
Researchers assess emergency radiology response after Boston Marathon bombings, highlighting critical role of medical imaging in emergency situations and ways to improve preparedness for mass casualty events. Imaging played a vital role in evaluating extensive shrapnel injuries with X-ray and CT scans.
Researchers have successfully created mutant worms that cannot get intoxicated by alcohol, opening up new possibilities for treating alcohol withdrawal. The modified human alcohol target used in the study only affects its response to alcohol, leaving other functions intact.
A study by University of Illinois researchers found that TB-infected elephants have different immune responses to the infection compared to those without it. The team developed a new method to detect cytokine mRNA in elephants, which could lead to faster and more accurate diagnosis of tuberculosis in captive elephants.
Researchers detected age-related changes in lateral ventricular width and periventricular white matter using DTI, which may correlate with cognitive and sensory motor deficits. The study published in Neural Regeneration Research found increases in fractional anisotropy value related to ventricle enlargement.
Researchers found that adolescents who showed a higher reaction in their amygdala while viewing negative images were more likely to develop PTSD symptoms after the Boston Marathon bombing. The study's findings suggest that brain activity before a traumatic event can predict a person's response to it.
Intravenous transplantation of BMSCs has been shown to promote nerve cell regeneration in injured cerebral cortex, supplementing lost nerve cells. This study provides evidence for the potential use of BMSCs as a therapeutic option for traumatic brain injury treatment.
A recent study published in JAMA found that hydroxychloroquine, a commonly prescribed treatment for primary Sjögren syndrome, did not improve symptoms in patients. The 24-week trial involved 120 patients and showed no significant difference between hydroxychloroquine and placebo groups.
Researchers found that bee tongues can be predicted by body size and taxonomic relationships, providing a valuable proxy for ecology studies. The study highlights the importance of tongue length in understanding species behavior, resilience, and invasiveness.
A genetic variant in the HMG CoA reductase gene has been identified as a significant protector against common Alzheimer's disease, delaying its onset by up to 4 years. This breakthrough discovery opens up new possibilities for treatment and pharmaceutical interventions.
A TGen-led study found that Cryptococcus gattii likely originated in Brazil and is highly adaptive, warranting global public health vigilance. The research identified new genomic targets for diagnostic tests, therapeutic drugs, and preventative vaccines.
Patients with a history of stroke are at higher risk for major adverse cardiovascular events and death after elective non-cardiac surgery. A recent study found that the time elapsed between stroke and surgery is critical in determining this risk, with those experiencing a stroke less than 9 months prior being particularly vulnerable.
Researchers at PTB have developed an experiment to measure the stopping power of tissue for carbon ions, which will improve dosing for cancer therapy. The study found that carbon ions are less strongly stopped in liquid water than in water vapour.
Research suggests that stricter math and science course requirements may lead to increased high school dropout rates, despite no corresponding increase in college enrollment or degree attainment. The study found varied effects across different demographic groups.
A study at Thomas Jefferson University found that using hypertonic saline during and after complex Whipple surgery reduced overall complication rates by 25%. The increased salt concentration helps to reduce fluid buildup and swelling, promoting faster recovery with fewer complications.
A novel study reveals that more than half of liver transplant patients want to be informed of donor risk at the time a liver is offered, with nearly 80% wanting to be involved in decision-making. The study aims to standardize patient information and involvement in transplantation decisions.
Researchers found that taking B vitamins had no effect on cognitive decline or reducing the risk of Alzheimer's disease in a meta-analysis of 11 clinical trials involving 22,000 participants. The study suggests that folic acid and vitamin B-12 can lower homocysteine levels, but not prevent the disease.
A new assay developed by Oregon State University can detect counterfeit malaria drugs at a cost of a few cents, saving thousands of lives annually. The technology uses paper-based microfluidics to verify the presence and level of artesunate, a crucial drug for treating serious malaria cases.
A lack of cardiac rehabilitation programs worldwide is a significant issue, particularly in low-income and middle-income countries. York University Professor Sherry Grace emphasizes the importance of integrating these programs into cardiac care to reduce deaths, re-hospitalization rates, and improve quality of life.
Researchers found that mobile display ads are effective for products with practical uses and high involvement, but less so for luxurious or low-involvement products. By understanding these nuances, marketers can optimize their advertising strategies and improve return on investment.
The study analyzed how cooperation among humans evolves across age groups, with younger participants exhibiting more volatile decision-making and a 'conditional cooperator' strategy. In contrast, older adults (over 65) showed increased cooperativeness, suggesting potential benefits for companies by keeping this group engaged.
A new skin gel form of tamoxifen has been developed and tested on women with non-invasive breast cancer, reducing cancer cell growth while minimizing side effects. The gel application was found to be effective in reducing blood clot risk associated with oral tamoxifen, offering a safer treatment option.
A major field project on the northern Front Range of Colorado will provide needed information to officials seeking to ensure healthy air. The study, FRAPPÉ, uses specially equipped aircraft, networks of ground-based instruments, and sophisticated computer simulations to track summertime ozone pollution.
Researchers have created a new test to quickly identify snakes infected with Ophidiomyces ophiodiicola, a fungus killing snakes in the Midwest and eastern US. The test allows for early intervention and potential treatment of infected snakes.
The ESPGHAN statement provides practical guidance on PEG tube placement and care, emphasizing the safety and effectiveness of this procedure for children with feeding and nutrition problems. The decision to insert a PEG tube should be made by a team experienced in carrying out the procedure.
A Rutgers University-Newark researcher is studying skilled readers to determine whether their choice of word meaning vs. word sounds impacts their reading ability. He found that good readers differ in how they use word meanings when reading aloud, with variations even among the most proficient readers.
A new study found that regular use of fish oil supplements was associated with a significant reduction in cognitive decline and brain atrophy in older adults. The study also showed that participants who took fish oil supplements demonstrated less brain shrinkage compared to those who did not use the supplements.
Elsevier's new open access journal Burnout Research aims to discuss and debate theories and applications of burnout. The first issue is now available on ScienceDirect, providing a central platform for researchers, practitioners, and policy-makers to share new ideas and information.
A team of researchers has created a way to induce normally mild-mannered cells to gobble up their undesirable neighbors by exploiting a molecular signal. This breakthrough could lead to therapies that enlist patients' own cells to better fend off infection and even cancer.
Researchers successfully manipulate 20 single bromine atoms on a sodium chloride surface to form the smallest 'Swiss cross' at room temperature. The achievement marks an important step towards next-generation atomic-scale storage devices and logic circuits.
The NOAA Magnetometer instrument is set to monitor magnetic field variations around Earth, enabling more accurate forecasts of space weather and its effects on orbiting spacecraft and electric power grids. The advanced technology will result in more timely and accurate weather forecasts, supporting public safety and economic health.
Researchers used game theory to study tumor cell cooperation and found that within certain ranges of mutation rates, critical transitions occur in energy metabolic strategies. This switch in tactics may make tumors vulnerable to disruption, potentially ideal for clinicians to test new therapies.
Researchers found rainwater can penetrate deep into the Earth's ductile crust, weakening rocks and initiating earthquakes. This discovery has significant implications for understanding earthquakes and the generation of valuable mineral deposits.
A new species of pontarachnid mite was discovered in a Caribbean mesophotic coral ecosystem, collected from nearly 70m depth. The study highlights the potential biodiversity hotspot for marine arthropods in these ecosystems.
A study published in JAMA reveals that physicians have difficulty recognizing the presence or absence of early HIV infection through clinical exam alone. Routine HIV testing is crucial for early detection and treatment, which can greatly reduce mortality and transmission.
Researchers found that Zhichan decoction increased dihydroxyphenylacetic acid levels up to 10-fold after neural stem cell transplantation, promoting the differentiation of dopaminergic neurons. This study suggests a potential treatment for Parkinson's disease using traditional Chinese medicine.
A recent study found that nearly 30% of completed clinical trials in the US remained unpublished after four years, threatening the validity of medical research literature. The lack of transparency was particularly pronounced among industry-funded studies and those with smaller sample sizes.
A new UK study reveals that a genetic defect in the melanocortin1 receptor (MC1R) may make people more susceptible to developing melanoma. The study found that MC1R defects contribute to melanoma development by delaying DNA repair and increasing cancerous mutations.
A study from Duke University found that the sex of children born to couples is linked to relationship conflict and pregnancy stress. Girls are more likely to be born into strained marriages, while boys may not survive such pregnancies as easily as girls do.
A new study suggests that getting patients in India quickly evaluated by the right doctors can be as effective at curbing tuberculosis as a highly accurate screening test. Improving access to Xpert MTB/RIF, a new TB test, could reduce new cases by 14.1 percent over 5 years.
Researchers found that stress can disrupt the process of fat tissue development, leading to issues with fat storage within cells and in the bloodstream. The study identified a key signaling pathway involving adenosine receptors and stem cell factors that regulates this process.
A study by Georgia State University researchers found that subtle variations in neural connections can impact behavior and susceptibility to brain injury. The findings have significant implications for predicting patient outcomes and tailoring treatments.
Researchers at Berkeley Lab and Intel have developed a new kind of resist that combines the best properties of two existing types, offering improved light sensitivity and mechanical stability. The breakthrough could lead to the creation of even smaller microprocessors with increased computation and energy efficiency.
Researchers found that global climate models fail to accurately represent the characteristics of airborne African dust, which influences Atlantic Ocean hurricanes. Surface waves in the central Beaufort Sea also play a role in energy and nutrient transport, contributing to ice retreat and potentially exacerbating coastal erosion.
Neuroscientists report defects in Fatty Acid Binding Proteins (FABPs) may explain pathology in schizophrenia and autism. Genetic disruption of Fabps in mice mimics disease behaviors seen in patients, suggesting a common link underlying these mental disorders.
A new study reveals which companies are most likely to become targets of anti-corporate activism based on their size, brand image, and reputation. The researchers found that companies with prominent brands and good reputations were more likely to be targeted by activists.
A new study published in JAMA found a 24% overall decline in first-time strokes in the US over the last two decades, as well as a 20% drop in deaths after stroke. However, progress was limited among younger people, while older adults saw little change in mortality rates.
Researchers found a significant presence of Treponema denticola, an opportunistic pathogen, in Oetzi's DNA mixture, supporting computer tomography-based diagnosis of periodontitis. The analysis also revealed Clostridia-like bacteria in a dormant state, which could impact future conservation efforts.
Research by Dr. Hyung-Seok Kim reveals that early expressions of hypoxia-inducible factor 1 alpha and vascular endothelial growth factor increase the neuronal plasticity of activated endogenous NSCs after focal cerebral ischemia. Additionally, neural precursor cells can be recruited from nearby areas to promote neurofunctional recovery.