New research reveals that active estrogen metabolites are a strong predictor of bone mineral density in men. Higher levels of these hormones tend to result in higher bone density, while lower levels increase the risk of osteoporosis.
Subconjunctival insulin delivery has been shown to treat degenerative and inflammatory responses in diabetic rat retinas. Low-dose periocular insulin delivery may also be a potential treatment for early diabetic retinopathy, according to researchers.
Brain structures reflect sex differences due to varying pressures on males and females, with larger neocortex linked to female sociability. Greater male competition correlates with reduced septum size, suggesting less control over aggression.
The Shape Up Somerville program, a community-based environmental change intervention, reduced weight gain among elementary school-aged children by approximately one pound over eight months. The multi-faceted program included initiatives to promote healthy eating options and physical activity in schools, homes, and communities.
The AmIVital project aims to develop specific ready-to-use products and a technological platform for remote assistance using intelligent devices, biosensors, and multimodal interfaces. The project will benefit 21.6% of the world's population aged 65+, with a focus on elderly and disabled people.
A nationwide clinical trial is evaluating whether omega-3 fatty acid DHA slows cognitive and functional decline in people with mild to moderate Alzheimer's disease. The 18-month study aims to measure the impact of DHA on brain atrophy, proteins, and other biological markers.
A novel catheter technique successfully patched ventricular septal defects (VSDs) in nearly all patients, restoring normal blood circulation and relieving fluid backup in the lungs. After recovery, patients regained enough strength to safely undergo surgical repair or return to active lives.
Astronomers have measured the age of a star in our Galaxy using ESO's VLT, finding it to be 13.2 billion years old, nearly as old as the Universe itself. This discovery was made possible by a new technique that combines radioactive elements thorium and uranium to accurately determine a star's age.
Researchers have determined the atomic structure of a key protein that helps toxoplasmosis parasites invade human cells. The protein binds to specific sugars on host cell surfaces, allowing the parasite to stick and enter cells.
Researchers at University of Cincinnati have found that bone marrow stem cells can differentiate into keratocan-producing cells, potentially treating abnormal corneal cell growth. The study showed that injected stem cells altered the shape and healed abnormal corneas in animal models within a week
Researchers in Japan have found that over 95% of pigs are infected with the hepatitis E virus by 150 days of age, minimizing human infection risk. This reduces the likelihood of pigs passing on the virus to humans at slaughter.
A University of Colorado study reveals two ancient 'burps' from the deep ocean, releasing carbon into the upper ocean and atmosphere, contributing to high CO2 levels today. The findings provide insight into natural CO2 cycles and potential impacts of human-caused climate change.
Researchers at Universitat Autonoma de Barcelona and UNIVET have developed an artificial canine skin model that replicates the characteristics of dog's skin. The model allows for study of skin biology and pathology without using live animals, providing an alternative to traditional research methods.
Researchers propose a new mechanism for Alzheimer's disease, linking breakdown of myelin to amyloid-beta fibrils and neurodegeneration. Myelination is key to brain function, and its decline with age may underlie the disease's progression.
A large cohort study found that using Swedish moist snuff (snus) increases the risk of developing pancreatic cancer by twice the rate of non-users. The study, conducted on almost 300,000 male construction workers, suggests that while the risks are small, snus use can still be a concern for overall health.
Researchers have identified more than 200 new proteins that bind to normal and mutant forms of the protein causing Huntington’s disease. The study suggests these proteins may be potential drug targets for treating the incurable disease, which affects 30,000 Americans annually.
Young women with heart disease often experience atypical symptoms such as jaw pain, sweating, and shortness of breath. These individuals are twice as likely to die in the hospital compared to similarly aged men, highlighting the need for prompt medical attention and increased awareness of risk factors.
A study found that nearly all physicians admit they would disclose a hypothetical error, but less than half have actually done so. The survey also revealed that those with more experience and those who prioritize forgiveness in their spiritual beliefs were more likely to disclose errors.
Researchers at Baylor College of Medicine have identified more than 200 new proteins that interact with the mutated protein causing Huntington's disease, offering potential therapeutic targets. These interactions may modulate the effects of the protein, either improving or worsening symptoms, and could help accelerate disease onset.
The new BEES 4.0 software tool from NIST provides a comprehensive evaluation of environmentally preferred and cost-effective building products, including biobased options that can offset greenhouse gas emissions. The updated software offers improved data on over 200 products, with additional features for scoring environmental impact.
Catheter-based aortic valve replacement using the CoreValve system improves aortic valve size and reduces heart failure severity in elderly patients. The procedure has been successfully performed on 17 high-risk patients, with all surviving the operation.
Irritable Bowel Syndrome affects 5-10% of the population worldwide and is associated with increased healthcare costs and psychological distress. Hypnosis has proven beneficial in managing IBS symptoms, but its limited availability is a major drawback.
Research suggests that chunky adolescents are headed in the wrong direction regarding cardiovascular health, with increased blood pressure and sodium intake found across all weight categories.
Alain Cribier will describe the development and evolution of percutaneous aortic valve replacement, a breakthrough procedure for treating aortic stenosis. The Cribier-Edwards heart valve has been tested in clinical trials, with another device, CoreValve, also undergoing testing.
A tiny spectrometer has been designed and demonstrated at NIST, offering precision laser calibration for atomic physics research. The device could replace table-top-sized instruments and improve instrumentation used to measure length, chemicals, or atmospheric gases.
A cognitive behavioural therapy (CBT) intervention has been demonstrated to increase CPAP use among OSA sufferers, with 77% using the device for at least four hours a night. The study found major positive health implications, with improved adherence and reduced refusal rates compared to treatment as usual.
A super stable fiber-optic network that can be tuned across a range of frequencies has been demonstrated at NIST. The network simplifies accurate comparisons of atomic clocks operating at different frequencies and locations, with potential applications in remote sensing and secure communications.
A systematic review found that psychological counseling and learning coping skills can significantly decrease arthritis-related disability and improve quality of life. The study analyzed 27 randomized controlled trials involving 3,409 patients with osteoarthritis or rheumatoid arthritis.
The Endeavor III trial reports mixed findings on the new-generation stent, showing improved procedural success but higher late loss in angiographic studies at 8 months compared to the Cypher stent. At 2 years, clinical outcomes were equivalent between the two stents, with similar rates of death, heart attack, and repeat procedures.
Researchers at UCLA AIDS Institute found a peptide that enhances HIV infection, contradicting its normal protective function. The discovery could lead to the development of new tools for gene therapy using HIV-based vectors.
A simple procedural change has significantly reduced cardiopulmonary arrests outside a pediatric hospital's intensive care unit. The American Heart Association recommends calling the cardiac emergency team at warning signs of respiratory problems or heart issues, rather than waiting for CPR initiation.
University of Florida researchers have identified specific human genes targeted by the Kaposi's sarcoma virus, which is believed to cause rare forms of cancer. The virus uses microRNAs to silence genes that suppress tumor cells and blood vessel growth, resulting in the characteristic red spots on patients' skin.
A study published in The Lancet found that long-term aspirin use can reduce the risk of colorectal cancer by 37% overall and 74% after 10-15 years. The benefits are likely to outweigh the risks in individuals at increased risk of colon cancer.
Researchers found that employees who participated in a workplace health program improved their blood pressure control and diabetes management, with significant reductions in absenteeism and workplace accidents. The program's comprehensive wellness system, which included coaching, incentives, and health screenings, was key to its success.
Researchers identified a short tandem array of telomeric repeats bound by a Rap1/Trf2 complex as sufficient to impede non-homologous end joining at human telomeric DNA ends. This finding opens the door to understanding mechanisms that initiate genomic instability in cancer cells.
A recent study explores how consumers' self-assessment of skill level influences their purchasing decisions for professional-grade golf clubs. Participants who had attempted a shorter putt perceived themselves as better golfers and chose higher-end equipment.
A study suggests that drylands can be managed sustainably to protect biodiversity and culture of 2.5 billion people. Introducing hope rather than gloom, the report highlights the importance of local knowledge and collaboration between residents and managers.
A study found that prevention-focused consumers favor safety and loss-avoidance in ads, while promotion-focused consumers prefer achievement and gain-seeking. This differential response affects which brand is evaluated first and the overall rating of both brands.
A new mooring system has been installed on top of Kick'em Jenny, a submarine volcano, allowing for real-time data collection and transmission. This will improve researchers' ability to detect precursory activity before an eruption takes place.
Scientists at NIST develop a flexible technique to mimic the desert beetle's warty wing covers, which can shift rapidly from hydrophobic to hydrophilic. The method uses ultraviolet light and photosensitive materials to control surface structure and chemistry, enabling rapid testing of paints, adhesives, and other coatings.
A new study found that questioning people about their vice behaviors increases the incidence of these behaviors. Researchers asked participants how often they expected to give in to temptations and found that this increased the actual number of times they gave in.
Reolysin works synergistically with standard anti-cancer drugs, providing stronger responses than either agent alone. It also primes patients' immune systems against their particular cancer, leading to additional cancer cell killing and long-term remissions.
Researchers at the University of Illinois Chicago have discovered how antibiotic linezolid inhibits bacterial growth. By binding to ribosomes, linezolid kills bacteria and disrupts protein synthesis. The study provides new insights into the mechanism of action and potential improvements for the drug.
Researchers found that bat flight is distinct from bird flight, particularly at small scales, due to its collapsible membrane and twisting wing path, generating different wakes and lift during the upstroke.
A two-year RED initiative aims to reduce deforestation in tropical developing nations, saving half a billion metric tons of carbon every year. Computer models predict that preserved forests will continue to act as a carbon sink if emissions are kept under control.
The DALYs system, widely used to measure public health interventions' effects, fails to account for the complexities of disability. Critics argue that this approach undervalues the lives of disabled individuals, instead prioritizing those without disabilities.
Researchers have identified seven new host species for H5N1 avian influenza, including four goose species and the common gull, in a study of over 36,000 wild migratory birds. The findings provide important insights into the ecology and epidemiology of various global strains of the virus.
The symposium highlights pioneering percutaneous interventions for aortic valve replacement and mitral valve repair, with promising results. Catheter-based stem cell therapy also shows promise in regenerating scarred heart areas and halting enlargement of the heart.
A large area of low but increasing gravity over North America has been discovered, reflecting the lingering impact of the last ice age. The study provides an unprecedented image of the geometry of the long-vanished Laurentide ice sheet and reveals that its ghost still hangs over the continent.
Researchers found that a gene deficiency in CalDAG-GEFI may explain the loss of platelet function leading to recurrent bleeding in patients with leukocyte adhesion deficiency III. Additionally, IL-33 and ST2 signaling was identified as a critical mechanism for protecting the heart from stress, suggesting potential new therapeutic targets.
A study by Tuba Üstüner and Douglas B. Holt explores the consumer identity projects of poor migrant women in Turkish squatter communities. The researchers found two distinct reactions to Western consumer culture: some created a nostalgic environment, while others transformed themselves through shopping and social outings.
A panel of experts shares their perspective on the causes of stent thrombosis, including early discontinuation of anticoagulation medication and stent fracture. The latest research on its prevention will also be discussed, highlighting the need for better strategies to solve this problem.
Researchers reprogram E. coli to detect and follow specific chemical signals, opening new frontiers in environmental cleanup and drug delivery. The custom chemo-navigational system could be used to target diseased cells while sparing healthy ones.
Researchers at La Jolla Institute for Allergy & Immunology have made an important finding on cytomegalovirus transmission by reducing the virus in salivary glands using antibodies. The study may have implications for other chronic virus infections like hepatitis and HIV.
Health officials in the USA investigate melamine contamination of pet food, leading to animal deaths and human consumption. The incident highlights the difficulties in ensuring food safety across a worldwide network of producers and distributors.
Researchers developed the largest registry of US patients with Takotsubo cardiomyopathy, aiding physicians in diagnosis and management. Most patients who survived the first 48 hours had a steady recovery, with normal heart function found in 29 out of 30 patients.
A three-year study found that patients with bleeding strokes received significantly less cholesterol-lowering medications, diabetes medication, and weight-loss management compared to those with ischemic strokes. Smoking cessation therapy also showed significant disparity between the two groups.
Researchers found that probiotics reduced the risk of necrotising enterocolitis in premature babies by 64% and the risk of death by 53%. The study also showed a significant reduction in sepsis risk and an average delay of three days in achieving full feeds. Further trials are needed to confirm these results.
Researchers at NIST developed arrays of spin valves to trap and manipulate individual biomolecules. The arrays can apply torsional forces strong enough to alter the structure or shape of biomolecules, enabling parallel processing of single molecules.
Researchers have found a 'short-circuit' in the Southern Ocean's circulation, which could aid predictions of future climate change. This process allows cold waters to return to the surface more rapidly than previously thought, affecting global heat and carbon distribution.
Researchers found hundreds of new species of bacteria that can break down petroleum products, including those surviving without water or oxygen. The bacteria have potential applications for cleaning oil spills, medical treatments, alternative energy, and industrial uses.
A new study by Xiang Fang, Surendra Singh, and Rohini Ahluwalia reveals that repeated exposure to web-based banner ads can create a favorable attitude toward the ad despite minimal conscious attention. The researchers found that even if participants couldn
David Wiant, a doctoral candidate at Kent State University, has won the Otto Lehmann Award for his outstanding thesis work in liquid crystal technology. The award recognizes Wiant's talent and diligent efforts in pursuing a career in academia.