The University of Washington is launching a groundbreaking study to prevent autism symptoms in high-risk infants. Led by Annette Estes, researchers will assess and intervene with 200 Seattle-area infants who have an older sibling diagnosed with autism, aiming to identify early risk factors and intervene before symptoms appear.
Researchers use a foot-long model in a quiet wind tunnel to study airflow over the X-51A vehicle, focusing on turbulent flow into the engine's combustor and smooth airflow over the upper surface. The findings will aid in designing vehicles that can fly at hypersonic speeds, reducing friction and heat generated during flight.
A recent study found that northern ecosystems lose more carbon than they gain from warmer autumn temperatures, offsetting up to 90% of spring's increased carbon uptake. This reduction in carbon sequestration capacity is attributed to increased soil decomposition and decreased carbon uptake during autumn.
Brown University has been named a Center of Excellence in Geriatric Medicine and Training, receiving a three-year $450,000 grant award from the John A. Hartford Foundation to train geriatrics junior faculty and fellows. The funding aims to address the growing shortage of geriatricians across the US, with 26,000 expected by 2030.
Cold Spring Harbor Protocols features methods to observe protein dynamics, including inserting lac operator sequences into mammalian cells and performing immunohistochemistry in whole mouse embryos. These techniques allow researchers to examine chromatin structure and protein activity during replication and transcription.
A coalition of 17 scientific organizations emphasizes the importance of teaching evolution in schools, citing a national survey that shows public support for evolution over creationism. The organizations argue that science education is fundamental to understanding natural phenomena and promoting critical thinking.
A Carnegie Mellon study identifies specific brain regions activated by familiar objects, such as tools and dwellings. The researchers used machine learning algorithms to extract patterns from brain activation scans, revealing that different brains exhibit common patterns for representing the same object.
Research found that 30% of patients with ventricular arrhythmia received life-saving defibrillation more than two minutes after cardiac arrest, leading to significantly lower survival rates. Hospital characteristics, such as small size and lack of continuous monitoring, were associated with delayed defibrillation.
Two new studies found that treating Hepatitis C with peginterferon and ribavirin for shorter durations can yield similar success rates to longer treatments, with cost savings and reduced risk of serious side effects. Patients' HCV-RNA levels after 4 weeks may be an important factor in determining the best treatment length.
A study published in PLOS Biology reveals that multiple Arp2/3 regulatory proteins play distinct roles in regulating actin networks, which are crucial for cellular processes such as cell migration and intracellular transport. The research provides new insights into the coordination of protein activities to generate complex actin networks.
A research study in Kenya and the US found that an HIV isolate contains mutations making it vulnerable to the immune system. This could lead to effective AIDS vaccines to combat new infections estimated at 2.5 million annually worldwide. The study proposes a vaccine strategy based on envelope protein modifications.
A Johns Hopkins study finds activating a specific protein on immune cells can reduce allergic reactions and asthma attacks. By targeting this protein, researchers hope to develop new treatments for allergies.
Researchers develop novel viral vector delivery system to alert immune system against cancer cells, bypassing the tumor's immune-suppressive mechanisms. The approach has potential for treating persistent infections and cancers.
A study led by UAB researchers found that blocking interleukin 17 (IL-17) slows disease-causing B cell actions in autoimmune disorders like rheumatoid arthritis and lupus. This discovery highlights IL-17's role in shaping B cells' ability to create more antibodies.
A new analysis found that US drug companies spent $57.5 billion on promotional activities in 2004, compared to $31.5 billion on industrial pharmaceutical research and development. The study confirms the public image of a marketing-driven industry and argues for transforming the industry towards more research and less promotion.
Researchers found that vitamin D2 is equally effective as vitamin D3 in maintaining 25-hydroxyvitamin D status, especially in people with vitamin D deficiency. The study showed similar increases in serum 25-hydroxyvitamin D levels for both vitamin D2 and D3.
A new brain mapping technique has refined scientists' understanding of language organization within the human cortex, identifying new regions involved in speech production, reading, and naming. The technique allows for safer tumor removal and better outcomes for patients with language-related difficulties.
A study by Einstein researchers suggests that impaired autophagy may contribute to the development of Parkinson's disease. The team found that dopamine-altered alpha-synuclein molecules interfere with lysosomal digestion, leading to toxic compound accumulation and cell death.
Researchers explore how modern concepts from mathematical ecology can benefit economically vital yet ecologically complex areas. The four articles in the special section highlight different aspects of attempts to incorporate these concepts into ecosystem-based management.
Recent studies have shown that magnetic resonance elastography and other imaging strategies can detect hepatic fibrosis with high sensitivity and specificity. Non-invasive techniques like MRI could replace liver biopsy, which is currently the best way to assess fibrosis but carries serious side effects.
Edward O. Wilson's article in BioScience presents a new perspective on the evolution of eusociality in insects, suggesting that natural selection acts on nascent colonies rather than individual traits. This challenges the traditional explanation based on kin selection, highlighting the complexity of social organization in these species.
A RAND Corporation study found that nearly one-third of local health departments connected callers to a public health professional within 30 minutes, while nearly 40% had cases where no one reached a trained professional. The study highlights the importance of having live operators at all times to meet federal guidelines.
A new study led by Duke University Medical Center researchers found that older patients over the age of 60 who undergo elective surgeries are at an increased risk for long-term cognitive problems. The elderly were more likely to die in the first year after surgery, and education protected against postoperative cognitive problems.
Scientists at the University of Leeds have identified a previously unknown natural mechanism that activates ion channels through thioredoxin, offering new opportunities for treating inflammatory diseases like rheumatoid arthritis. This breakthrough could lead to the development of innovative therapies.
Research finds that multiple species of Chlamydiae bacteria are involved in trachoma, contradicting previous assumptions. The study suggests that a one-size-fits-all approach to treatment may not be effective, highlighting the need for new vaccine and treatment strategies.
Researchers found that delivering the IL-22 gene to the intestines of mice with ulcerative colitis reduced inflammation and enhanced mucus production. Local delivery of the IL-22 gene also neutralized chemical-induced intestinal inflammation in normal mice, suggesting a potential therapeutic approach for UC.
Researchers found that compressing nanoscale nickel pillars drives out dislocations, producing a perfect crystal and increasing strength. The process, called mechanical annealing, reduces dislocation density by 15 orders of magnitude, making small structures stronger than expected.
Researchers found that oral osteoporosis medications appear to reduce the risk of jaw degradation in patients. The study analyzed medical claims data from over 714,000 individuals and showed a protective association between oral bisphosphonates and adverse bone outcomes.
A new discovery reveals that consuming polyphenols with high-fat foods may reduce the appearance of toxic compounds in human plasma. Polyphenols have been shown to counteract the unhealthy effects of fatty foods, potentially leading to improved heart health.
The National Arthritis Data Workgroup estimates over 46 million US adults have diagnosed arthritis or other rheumatic conditions. By 2030, this number is expected to rise to nearly 67 million, posing a significant burden on healthcare and public health systems.
A recent study published in Nature reveals that northern terrestrial ecosystems are losing more carbon dioxide through autumnal warming than they gain during spring, offsetting nearly 90% of increased carbon uptake. This finding highlights the critical role of autumn temperatures in determining the carbon balance of these ecosystems.
Hydrogen peroxide plays a crucial role in cell health, but excessive levels can damage DNA and proteins. Researchers have identified a key protein, Prx, that helps control hydrogen peroxide levels by acting as a sensor, warning the cell to respond when levels become too high.
Research found that obese individuals are less likely to use seatbelts due to discomfort, leading to increased risk of injury or death in car accidents. The study suggests promoting awareness about seatbelt extender availability and designing more comfortable seatbelts for overweight individuals.
Researchers at Purdue University developed a new modeling technique to study and design miniature biosensors. The model explains why certain designs perform better than others and refutes long-held assumptions about sensor performance.
Researchers discover polyphenols in winemaking waste inhibit the ability of bacteria to cause cavities and form biofilms, potentially leading to new treatments for oral diseases. The findings also suggest the compounds may hold clues for lessening the ability of bacteria to cause life-threatening infections.
A study by Penn State researchers found that daily alcohol consumption causes changes in male fruit fly sexual behavior, including increased arousal and decreased inhibition. The research also discovered that repeated exposure to ethanol leads to behavioral sensitization, where flies engage in more inter-male courtship.
A study identified ADK as a molecular link between astrogliosis and neuronal dysfunction in epilepsy. Mice engineered with less ADK were protected from chemical-induced epilepsy, suggesting an ADK-based treatment strategy for individuals with epilepsy.
Scientists are developing a novel treatment strategy to target the key enzyme responsible for tooth decay in Streptococcus mutans bacteria. By disrupting this enzyme, researchers hope to render the bacteria more vulnerable to acid damage and prevent the formation of cavity-causing acid.
Researchers at Scripps Research Institute uncover two new methods for correcting mistakes in protein synthesis, which could help identify underlying causes of diseases. The discovery also suggests the presence of a triple redundancy system to prevent mistranslation errors.
Researchers have discovered how life evolved from simple self-replicating molecules to complex organisms by studying a primitive fungus protein. The study shows how RNA progressed to share functions with proteins, a critical missing step in the evolution of life.
A new study by Atsushi Mizoguchi and colleagues established that IL-22 ameliorates disease in a mouse model of ulcerative colitis. The authors suggested that individuals with UC might benefit from local delivery of the IL-22 gene to their intestines.
Physicians must not participate in executions as it contradicts the core concept of ethics in medicine. Lethal injections used in executions raise concerns about pain and human suffering, with experts calling for improved procedures to ensure humane treatment. The Mayo Clinic Proceedings provides a forum for debate on this critical issue.
Researchers found a founder mutation in two large US families that may contribute to significant colon cancer cases. The mutation increases risk by 2-3 times by age 80, but can be prevented with proper screening and care.
Researchers found that a short course of hormonal therapy before and with radiation therapy slowed cancer growth by up to eight years, particularly the development of bone metastases. This delayed cancer progression increased survival rates among older men with potentially aggressive prostate cancer.
Researchers found a significant association between the index-to-ring finger length ratio and the risk of knee osteoarthritis. Women with a 'male' pattern of longer ring fingers were more likely to develop knee OA, while those with smaller 2D:4D ratios had a greater risk of tibiofemoral knee joint OA.
A team of astronomers discovered that a white dwarf, AE Aquarii, emits high-energy X-rays as it whirls around on its axis, similar to the Crab Nebula's pulsar. This behavior indicates that white dwarfs can accelerate charged particles to near-light speed, potentially contributing to cosmic rays.
The National Nanotechnology Initiative has released a new strategic plan aimed at achieving growing economic benefits and improved quality of life for US citizens. The plan reflects the consensus of participating agencies and provides guidance for investments and activities in nanotechnology R&D.