Researchers have identified a potential target for preventing HIV transmission through vaginal membranes. A modified chemokine called PSC-RANTES was found to be effective in blocking SHIV transmission in rhesus macaques, offering hope for the development of a topical agent to prevent HIV infection in humans.
The Lancet article advocates for randomized criminal-justice trials to improve evidence-based decision-making in the UK. The proposed approach would involve randomizing offenders between drug treatment and testing order, or alternative sentence, to inform judicial decisions.
Researchers have identified a link between the fibroblast growth factor system and major depressive disorder, with those treated with SSRIs showing smaller changes. The study's findings offer new insights into the biological mechanisms underlying mood disorders and potential avenues for targeted therapeutics.
Physicists at NIST propose new way to slow light down to almost one-millionth its usual speed using a stable pulsed laser in cryogenic gas. This method could help simplify and reduce the cost of high-speed optical communications, enabling faster signal routing and data synchronization.
Researchers at NIMH identified a brain region in the frontal cortex as the site of perceptual decision-making, which weighs competing signals from specialized visual processing areas. The discovery could explain why harder-to-identify images evoke slower responses in this area.
Researchers at Rockefeller University discovered that the protein Par6-alpha plays a crucial role in spurring the centrosome to action, allowing brain cells to migrate and form the brain's outer layer. The study overturned long-held assumptions about adhesion as the primary mechanism for neuronal migration.
Researchers recommend implementing a carbon tax to protect against long-term climate change, with the goal of buying 'insurance' against future adjustment costs. The study suggests that immediate action can be more cost-effective than waiting and acting later.
The winner's research explains how the nematode worm detects touch, a process that could inform studies on human reduced touch sensation. This knowledge may help develop new treatments for diabetes-related complications.
A new study by the American Medical Association links ephedrine to unheralded sudden cardiac death in individuals with asymptomatic heart disease. The study found that ephedrine can cause a potentially lethal arrhythmia when combined with a heart blockage, increasing the risk of fatal outcomes.
The artificial retina project aims to restore vision in blind individuals by capturing visual signals and transmitting them to the brain. The device is a miniature disc with an electrode array that stimulates optical nerves, enabling users to see large letters and differentiate between objects.
Researchers at the University of Washington are developing a new propulsion concept that could dramatically cut the time needed for astronauts to travel to and from Mars. The mag-beam concept uses a space-based station to generate a stream of magnetized ions that propel a spacecraft through the solar system, potentially reducing round ...
Researchers found that more alcohol is consumed in beer form than previously believed, with a national mean alcohol content of beer ranging from 4.58% to 4.75%. This translates to approximately 10 additional standard drinks yearly for each person aged 14 or older in the US.
Researchers at Massachusetts General Hospital found that patients use laughter to convey emotional intensity during psychotherapy, while therapists' laughter magnifies this effect. The study suggests that therapists should pay attention to when patients laugh, as it may indicate the need for further exploration of emotions.
Scientists at Newcastle University have discovered a way to safely store and release hydrogen, paving the way for pollution-free cars. The breakthrough uses nanoporous materials to trap and release hydrogen gas, which could power vehicles in the future.
A malaria vaccine trial has shown encouraging phase II results, demonstrating a 30% reduction in clinical episodes of malaria among young children. The RTS,S/AS02A vaccine has also shown effectiveness in preventing subsequent new infections and severe malaria cases.
Researchers found that lean mass, intra-abdominal fat, and inflammation biomarker sTNFR1 are higher in women with metabolic syndrome, independently related to its severity. Analysis of these factors can help doctors identify postmenopausal women at increased risk for diabetes and heart disease.
Purdue University chemists have improved mass spectrometers to analyze chemical samples quickly and efficiently. The new device uses desorption electrospray ionization (DESI) technique to test untreated samples right where they are found.
A recent study examined the genetic factors underlying a low response to alcohol and found potential links to several gene categories. The research suggests that these genes could play a significant role in the development of alcoholism, particularly in individuals who experience little or no effect from drinking.
Early diagnosis of cystic fibrosis through newborn screening can lead to improved height and weight measurements, better pulmonary status, and cognitive benefits. Implementing CF newborn screening in all states aims to give people with this disease the best odds at living longer, healthier lives.
The Huygens probe will encounter a mysterious surface of seven-kilometer-high ice mountains and liquid methane seas. Scientists expect the Cassini spacecraft to improve the current sketchy picture of Titan's surface.
A multi-university study found that levels of fibroblast growth factors (FGFs) and their receptors were significantly lower in people with severe clinical depression. The researchers also found that those who had been taking antidepressants before death had levels closer to normal.
Researchers found two brain areas competing for control over behavior when balancing near-term rewards with long-term goals. Decisions involving immediate rewards activated emotion-related brain systems, while abstract reasoning systems were active in all choices.
Weight-reduction surgery patients are at risk of developing peripheral neuropathy, a condition causing pain, numbness, and weakness. Following nutritional guidelines and attending post-surgical care programs can help prevent nerve damage.
A recent study examining obese postmenopausal women found that visceral fat storage was the main determinant of metabolic syndrome and increased cardiovascular disease risk. High-intensity exercise and general weight reduction were identified as potential strategies to reduce this risk.
The influenza vaccine faces production challenges, with Chiron's manufacturing troubles affecting UK and US supplies. To mitigate this, manufacturers are diversifying their output to ensure vaccination for high-risk groups is maintained.
Researchers studied 13,000 people for ability to detect deception and found 31 'wizards' who consistently outperform others in spotting lies. They identified key behavioral clues, including micro-expressions and inconsistencies in speech patterns, that can betray a liar.
Researchers at Northwestern University are developing novel biomaterials and imaging techniques to improve the survival and function of transplanted islet cells in patients with type 1 diabetes. The grant will fund efforts to create microenvironments favorable for islet survival and function via controlled delivery of biological factors.
Researchers at Tufts University found a significant gap in care for fracture patients, with few treated for osteoporosis despite increased risk of re-fracture. The study suggests that primary care physicians play a crucial role in reducing this risk through targeted counseling and medication.
A University of Florida study found that using ingratiating behaviors such as agreeing and complimenting can make a favorable impression on recruiters, while self-promotion tactics have no effect. The research suggests that businesses may be looking for people who fit in rather than those with unique ideas.
Researchers at Bristol University found a link between magma storage depth and eruption explosiveness in the 1980 Mount St Helens eruption. Monitoring isotopic content of gases emitted from the volcano may help predict the next eruption's style and timing.
A controlled study found that bariatric surgery is associated with an increased risk of peripheral neuropathy (PN), a condition causing pain and weakness. The study highlights the importance of nutritional counseling and follow-up care to prevent PN complications, which are largely preventable.
A study published in Psychological Science used MRI technology to investigate how people form false memories. The researchers found that brain activity in specific areas, such as the precuneus and right inferior parietal cortex, was greater for words that were later falsely remembered as having been presented with photos. This suggests...
Scientists have discovered a compound that blocks both ways cancer cells make energy, leading to the complete halt of tumor growth. The chemical, 3-bromopyruvate, targets cancer cells' high appetite for sugar and appears to have little effect on normal tissues.
A new study provides a detailed picture of magma and gas movement leading up to the 1980 Mount St. Helens eruption, showing that magma stalled at a depth of three to four kilometers beneath the surface. The research sheds light on volcano behavior and offers fresh insights into the cataclysmic event.
A review of herbal and nutritional supplements found eight products associated with clinically significant ocular side effects, including ginkgo biloba, Echinacea purpurea, chamomile, licorice, canthaxanthine, Datura, niacin, and vitamin A. The side effects range from dry eye to retinal hemorrhages and transient visual loss.
A new study finds that emotion coaching by mothers and fathers can reduce behavior problems in children exposed to domestic violence. When fathers engage in emotion coaching, their children are less withdrawn.
A new experimental drug called PSC-RANTES has shown promising results in preventing vaginal simian HIV transmission in monkeys. The study found that the highest dose of PSC-RANTES protected all five recipients from SHIV infection, suggesting a potential key target for strategies to prevent vaginal HIV transmission.
A global assessment of amphibian populations reveals that nearly one-third of species are threatened with extinction, with many more considered vulnerable. Key drivers of decline include habitat destruction, air and water pollution, and climate change.
Scientists have discovered a new mechanism underlying muscle wasting in various diseases, including cancer and diabetes. Blocking the NF-kB pathway can prevent muscle atrophy and prolong survival in mouse models of disease.
Patients with dementia face significant barriers to optimal care, including lack of education, poor prognostic tools, and conflicting financial incentives. The authors propose solutions, such as improved hospice access, better quality-assessment tools, and changes in the healthcare system.
A study found that 31% of acute medical inpatients lack mental capacity, but recognition by clinical staff is low. Increasing age and cognitive impairment are key factors associated with a lack of mental capacity.
Researchers have successfully engineered mice with alveolar rhabdomyosarcoma, a particularly deadly childhood muscle cancer. The studies provide insights into the genetic events that cause the disease, paving the way for potential new therapies.
A study by St. Jude Children's Research Hospital found that sustained exercise can prevent cell death in the substantia nigra of adult mice treated with a toxin called MPTP, which mimics Parkinson's disease. Exercise increased production of glial-derived neurotrophic factor (GDNF), protecting nerves against damage caused by free radicals.
A study in flies reveals that rapid and chronic tolerance operate via different neurobiological mechanisms and genes. Rapid tolerance is blocked by a drug inhibiting protein synthesis, while a fly mutant lacking octopamine shows reduced rapid tolerance.
Research suggests that binge drinking has a detrimental effect on platelet adhesion and aggregation, leading to increased risk of cardiovascular mortality. In contrast, moderate red wine consumption may have beneficial effects on cardiovascular disease due to its high polyphenol count.
A new technique improves survival rates and quality of life for the youngest heart patients by eliminating initial open-heart surgery. The hybrid procedure, pioneered by Dr. Bacha and Dr. Hijazi, reduces risk of neurological damage and enables children to grow before follow-up operations.
The Department of Energy has partnered with the University of Southern California, national labs, and a private company to develop an artificial retina. The project aims to restore sight to millions of individuals worldwide who are blind or severely visually impaired due to diseases like age-related macular degeneration.
The team created two prototype fibers with new technology, combining optical and electronic components, enabling smart fabrics and potential computer interface innovations. Assembling the fibers into woven structures allows for precise identification of light sources on surfaces.
A new protein called mBDNF has been found to play a crucial role in forming long-term memories. The discovery opens up possibilities for studying the protein in people with disorders of learning and memory, as well as developing new medications to compensate for these problems.