A recent study found that hospital procedural volume is only modestly associated with risk-adjusted CABG mortality rates, suggesting that other measures are needed to assess quality. Low-volume hospitals often achieve excellent outcomes despite operating on higher-risk patients.
The Environmental Polymorphism Registry aims to investigate the interaction between genes and environment. Researchers will analyze DNA samples from 20,000 participants to identify genetic variants associated with environmental exposure.
The Stanford University Program on Energy and Sustainable Development has received a grant from BP to accelerate research on market-based policies addressing global warming. The partnership aims to complement technical research with similar work on the legal, political, and institutional dimensions of energy value derivation.
The system uses computer models to predict impacts of cities on regional and global land and atmospheric processes. By incorporating local energy and water cycles, predictions can be applied to climate and weather forecasting, agricultural management, and hazard mitigation.
A study published in Archives of Surgery examined 564,267 outpatient surgical procedures and found that risk factors include advanced age, prior hospitalization, and invasive surgeries. The results highlight the importance of proper assessment and resource availability for high-risk patients undergoing outpatient surgery.
Researchers at Johns Hopkins Medicine have made a groundbreaking discovery that prostaglandin-E2 (PGE2) protects brain cells from damage caused by stroke. The finding provides a new strategy for tackling and understanding the condition, which affects 4 million Americans annually.
A study found that medical students lack sufficient training in critical skills like communication and interviewing, while another study showed course directors vary in teaching chronic care preparedness. To address these gaps, a new course at Johns Hopkins aims to improve patient-physician communication.
A study found that women taking high doses of vitamin D supplements were 40% less likely to develop multiple sclerosis. Vitamin D levels in the blood prior to onset of MS should be measured in future studies.
Scientists have discovered that rapidly evolving genes can reveal more historical signals than slowly evolving genes, providing a new perspective on plant classification. This approach has the potential to revolutionize our understanding of plant evolution, ecology, genetics, and biodiversity.
Purdue University scientists have discovered that mussels use iron to create their natural adhesive, which could have applications in medicine and industry. The discovery, led by Jonathan Wilker, has the potential to develop new surgical adhesives, rustproof coatings and antifouling paints.
A recent study found that even moderate amounts of exercise can help prevent weight gain in overweight individuals. The research, published in the Archives of Internal Medicine, suggests that more intense physical activity is necessary for weight maintenance and that a modest amount of exercise can reverse positive caloric imbalances.
A study of 18,980 adults found that morning headaches were associated with depression, anxiety disorders, and other conditions, including sleep-related breathing disorders and musculoskeletal diseases.
A study published in The Journal of Nuclear Medicine found that PET scans are more effective than CT scans in early assessment of patients' responses to imatinib mesylate therapy. The researchers concluded that 18F-FDG PET is an excellent prognostic tool for predicting treatment response in gastrointestinal stromal tumors.
A study by Cornell University found that farm-raised salmon in Europe contained higher levels of organic contaminants than those from North America and South America. The analysis revealed 13 out of 14 organochlorine contaminants were present in farmed salmon, highlighting the need for safer farming practices.
Researchers have identified a complex mechanism of translational repression in Drosophila oogenesis, involving proteins Cup, Bruno, and eIF4E. This study reveals how these proteins work together to repress the translation of critical mRNAs, ensuring precise localization and function in germline cells.
A significant demographic shift has occurred in the US, delaying the transition to adulthood, as youth are combining roles, exploring options, and gaining education to prepare for a demanding labor force. Marriage and family have not been abandoned, but rather postponed until later ages.
A randomized controlled trial suggests that modest exercise, such as 30 minutes of daily walking, can not only prevent weight gain but also lead to additional loss of weight and fat. The study found a dose-response effect between the amount of exercise and decreases in measurements of central obesity and total body fat mass.
A study by NASA researchers found that tropical cyclones with 'hot towers' in their eyewall are twice as likely to intensify within six hours. The researchers used TRMM satellite data to compile global statistics on hot tower occurrence and define a nine-mile high threshold for classification.
Recent studies show that overweight Hispanic youth are at an increased risk for developing type 2 diabetes and cardiovascular disease. Insulin resistance directly contributes to the development of metabolic syndrome, particularly in those with a family history of diabetes.
A Phase II trial of Herceptin combined with chemotherapy found no significant difference in survival times between the treatment and control arms. However, a small subgroup of patients with extremely high levels of HER2 over-expression showed improved response rates and longer disease progression-free periods.
Researchers at Purdue University have identified the secret to nature's super glue, a strong adhesive mesh produced by bivalves using metal ions. The discovery has the potential to develop safer alternatives for surgical and household glues, as well as combat invasive species like the zebra mussel.
A study of Latino children found that nearly three in ten have impaired glucose tolerance, a precursor to type 2 diabetes, while obesity rates are twice those of non-Latino peers. Insulin resistance and metabolic syndrome increase the risk of chronic diseases.
Researchers found that mitochondrial DNA mutations enabled early humans to adapt to colder climates, reducing the risk of diseases such as diabetes and cardiovascular disease. The study suggests a link between genetic history and current disease predispositions.
A study of 70 patients found that informed consent before cataract surgery had no significant impact on their decisions. Cognitive dissonance also played a role in shaping their choices. The results suggest that ophthalmologists should consider the limited influence of informed consent in surgical decision-making.
Researchers identified 31 novel polypeptide families that inhibit Staphylococcus aureus growth when expressed in bacteria. They used phage genomics to screen for small molecule inhibitors and found several compounds that inhibited bacterial growth and DNA synthesis.
A meta-analysis of 127 studies found that a single cognitive ability test, the Miller Analogies Test, can predict performance in both academic and work environments. The researchers found strong validity for the test across various measures of graduate student performance, job performance, potential, and creativity.
Researchers have sequenced a native centromere in rice, revealing active genes that defy the notion of non-coding DNA. The discovery provides insights into chromosome evolution and has significant implications for plant engineering.
A study of children in Peru found that inadequate water and sanitation led to significant growth stunting, with children having poor conditions being 1 cm shorter. The research highlights the importance of adequate sewage disposal and access to safe water for reducing childhood malnutrition and diarrhea.
Tumors use Stat3 signaling to secrete factors that inhibit the immune system, keeping dendritic cells from maturing. This activation blocks expression of inflammatory mediators required to trigger the immune response. New treatments aimed at flushing cancer cells into the open may help the body's armies against disease destroy them.
Researchers at Vanderbilt University have developed a four-channel microphysiometer to monitor cell metabolism in near real time. The device can chart variations in oxygen, glucose, and lactic acid levels, providing crucial clues about the impact of unknown biological agents on cells.
Researchers found a periodic increase in slip rate every three years along the northern half of the central San Andreas Fault, indicating a higher probability of moderate to large quakes. This cycle is characterized by an upswing of microquakes, followed by moderate to large earthquakes six to seven times more likely to occur.
A substantial majority of people who purchased Prilosec OTC complied very well with the label instructions. The study found that frequent heartburn sufferers increased consultation with their physicians after using the medication.
A study published in Science has identified the Alox15 gene as a potential human therapeutic target for osteoporosis risk. The gene's over-activity leads to reduced bone density and increased risk of osteoporosis, but inhibitors of the gene's enzyme can improve bone mass and strength.
Researchers at Indiana University found that farmed Atlantic salmon contain significantly higher levels of toxins, including PCBs and dioxins, than wild Pacific salmon. These toxins are linked to human health concerns and may pose a risk to people who eat salmon regularly.
A study found that women who experienced miscarriage had lower concentrations of macrophage inhibitory cytokine-1 compared to those who delivered normally. Low MIC1 levels often preceded miscarriage, suggesting its potential as a predictor and therapeutic target for pregnancy loss prevention.
Researchers at the University of Pennsylvania have discovered a critical regulatory role of protein CTCF in controlling gene imprinting in eggs. The study found that lower levels of CTCF resulted in higher DNA methylation and reduced fertility in female mice.
The new g-2 measurement has deviated significantly from the standard model prediction, with a difference of 2.8 standard deviations. This discrepancy has sparked renewed interest in the possibility of new physics beyond the Standard Model, particularly supersymmetry.
A study by Emory University researchers found that subordinate cichlid fish had larger gall bladders with dark bile, leading to slower growth and potentially linking social stress to digestive problems. The discovery could hold clues for understanding human gallstones.
Researchers found that a sugar called ribose can be formed from interstellar dust clouds using borate minerals like colemanite. This discovery sheds light on the 3-billion-year-old mystery of how life on Earth began and could have implications for disease diagnostics and therapy.
Researchers found that diesel exhaust particles trigger more severe allergic responses in individuals with certain genetic variations, particularly the GSTM1 and GSTP1 genes. This study suggests a new route of intervention for pollution-related lung health problems.
Scientists have identified a biological basis for suppressing unwanted memories, contradicting human intuition that people ruminate on unpleasant thoughts. The study found that controlling memory is associated with increased activation of the frontal cortex and reduced activation of the hippocampus.
A WHO expert consultation suggests that traditional BMI cut-off points may not be suitable for Asian populations, who experience a higher risk of adverse health outcomes at lower BMI values. The consultation proposes intermediate public-health action points to address this disparity.
Astronomers have detected a lensed quasar more than twice as wide as any previously reported, offering insights into dark matter and its distribution. The discovery provides evidence for the presence of massive galaxy clusters, which can be used to study dark matter.
Researchers at the Salk Institute discovered a complex chain of events leading to Notch activation, which is crucial for proper left-right asymmetry. The study used mathematical modeling to pinpoint factors regulating Notch activity, revealing extracellular calcium as a key trigger.
Astronomers have found evidence of rapid galaxy formation in the early universe, including ultra-massive black holes and mature galaxies that formed at an unprecedented rate. This discovery poses a significant challenge to the cold dark matter theory, which predicts galaxies formed through a bottom-up process.
Researchers identified four asthma patient subsets defined by age of onset and presence/absence of eosinophils, suggesting different biological processes and mechanisms. Early-onset asthma was associated with allergies, while late-onset asthma showed rapid lung function loss.
Researchers found a link between a family of antioxidant-related genes and the allergic response to diesel exhaust particles. The study suggests that people lacking these genes may have difficulty fighting air pollution's harmful effects, with potential treatments being explored.
Researchers found that 3% of women report chronic pain and 1.7% currently have pain, affecting millions across the US. The study also revealed that African-American women are as likely to experience vulvodynia as Caucasian women.
Scientists are working to create an animal that lacks the genomic architecture to code for normal prions, which cause Bovine Spongiform Encephalopathy (BSE) and Creutzfeldt-Jacob Disease. The goal is to produce a cow that is genetically incapable of producing prions, which could potentially contain the risks of this disease.
Researchers found that unwanted memories can be suppressed using brain areas similar to those used during physical action control. This process reduces hippocampal activity, leading to forgetfulness. The study provides a novel neurobiological model for motivated forgetting, which may demystify how repression occurs.
Studies identify specific tissue sites where abnormal cells lead to insulin resistance and Metabolic Syndrome. PPARgamma in fat tissue affects adipose cell function, while defective muscle tissue causes profound insulin resistance.
The University of Chicago study found that urban areas are organized into partnering markets, influencing how people meet and form relationships. Societal institutions, neighborhoods, and racial groups play significant roles in shaping these markets.
Researchers report success with new anti-IL-5 therapy in treating severe forms of hypereosinophilic syndrome, reducing eosinophil counts and improving symptoms. The treatment has been well-tolerated and improved the quality of life for all four patients, including one who regained ability to eat solid foods after years of inability.
The NIH is funding a project to develop a user-friendly website for senior citizens to access healthcare services. The project, led by Athman Bouguettaya and Denis Gracanin, aims to incorporate the latest privacy protection techniques and graphical user interfaces to make healthcare more accessible.
Researchers at Mayo Clinic implant human blood stem cells into fetal pigs, revealing the presence of hybrid cells with both human and pig DNA. These findings may help explain how viruses jump from animals to humans, paving the way for discovery about disease origins like AIDS.
Researchers discovered a gene, CREST, crucial for normal brain connections formed in response to sensory experiences. The study revealed that mice lacking the CREST gene develop abnormally in response to calcium ions and experience learning disorders.
A new DNA registry at UNC will study the interaction between genes, environment, and disease. The registry aims to identify groups of individuals with genetic polymorphisms that may be linked to environmental risk factors.
A new study by William Checkley and colleagues found that water and sanitation are key determinants of infant health in developing countries. The research, conducted on 230 Peruvian infants, revealed that inadequate water and sanitation can lead to higher rates of diarrheal episodes and stunted growth.
Researchers at the University of Melbourne have discovered a sub-atomic particle called X(3872) that defies explanation using current theories. This 'mystery meson' has unique mass and decay properties that challenge our understanding of quarks and the color force.
Researchers have discovered an RNA lariat structure that may explain the long-standing mechanism of template shift in retroviral replication. The finding provides new insights into the process of reverse transcription and has potential implications for understanding HIV-1 replication and developing targeted therapies.