A comprehensive review of UK asthma frequency and health service use found that south Asian people had lower asthma symptoms, while black people had similar symptoms. South Asians were three times more likely, and blacks twice as likely, to have emergency hospital admissions for the condition.
Researchers have discovered that reducing Abeta buildup in the brain can rapidly reverse structural nerve damage associated with Alzheimer's disease. The study used a mouse model to demonstrate the effectiveness of an anti-Abeta antibody treatment, suggesting a potential new approach for treating the condition.
Dr. Russell, a Yale cardiovascular researcher, is awarded the Bayer Fellowship for his work on heart function and metabolism in disease states. His research focuses on glucose transporter expression, AMP-activated protein kinase, and mitochondrial uncoupling proteins to understand and treat heart failure.
The CRaTER instrument will measure high-energy charged particles in deep space to develop equipment and materials for human safety in the lunar environment. Scientists at Boston University are leading the development of the instrument with NASA funding.
A new study found that rats bred for low aerobic exercise capacity had more cardiovascular disease risk factors than those bred for high exercise capacity. The researchers discovered a close association between low aerobic capacity and metabolic syndrome, including high blood pressure, insulin-resistance, and abdominal fat.
Researchers have found evidence of coastal subsidence preceding major subduction zone quakes, potentially providing a warning system for tsunami alerts. The study suggests that areas along subduction zones should monitor subsidence to predict potential earthquakes and tsunamis.
Common antidepressants lower effects of tamoxifen in many women, with different SSRIs affecting active tamoxifen byproducts in the blood. Genetic testing may help identify groups that benefit more from one SSRI than another.
Researchers found no evidence of an asteroid impact during the Great Dying, a mass extinction event that occurred 250 million years ago. Instead, they suggest that atmospheric warming due to greenhouse gases from volcanic eruptions led to the extinction of 90% of marine life and nearly three-quarters of land-based plant and animal life.
Researchers Arkush and Stanish argue that the Andes were home to more frequent and devastating conflicts than previously believed. They contend that a better understanding of the archaeological signatures of warfare will clarify the course of war and peace in the region.
Researchers measured ancient moraine crests to determine past movement on the Karakorum fault, revealing a significant right-lateral motion. The study's findings provide crucial insights into the Asian continent's movement and the collision of India and Asia.
A new avian species called Vegavis iaai has provided unprecedented fossil proof that some close cousins to living bird species coexisted with dinosaurs during the Cretaceous period. The research, published in Nature, places Vegavis within the Anseriformes group and indicates its evolutionary relationship to ducks and geese.
Researchers found that HIV-specific CD4+ T cell population remains intact after treatment cessation, with increased turnover and activation upon viral rebound. This suggests a potential mechanism for the immune system to respond to viral infections.
A study published in Diabetologia found that higher levels of protein adiponectin are associated with a lower risk of coronary artery disease (CAD), even independent of conventional risk factors. The study showed a remarkable 63% reduction in CAD risk for each 6.3 microgram per milliliter increase in serum adiponectin levels.
Researchers found that clearing Alzheimer's plaques leads to rapid recovery of normal brain structure in just three days. The study suggests that plaque-clearing treatments may slow or halt disease progression, and researchers plan to investigate the underlying mechanisms.
Researchers use genetic analysis to trace a genetic gradient across distance, challenging the theory of speciation by distance. The findings have broad implications for conservation approaches, highlighting the importance of preserving gradients of forms rather than well-defined groups.
A new UCI study finds that men and women use different brain areas to achieve similar IQ results, with women having more white matter and men having more gray matter related to intellectual skill. The study suggests that human evolution has created two different types of brains designed for equally intelligent behavior.
Researchers have found that gold nanoclusters can become electrically charged when anchored to defects in a magnesium oxide catalytic bed. This charging mechanism enables the transfer of an electron to reacting molecules, weakening chemical bonds and allowing reactions to occur at low temperatures.
A recent study by Robert Kurzban and Daniel Houser found that three main personality types play a crucial role in group projects: Reciprocators, Cooperators, and Free Riders. The study revealed that about 63% of participants are Reciprocators, who tend to hold back before fully committing to a project.
Researchers aim to develop new catalysts that can convert water into hydrogen with improved efficiency, reducing energy consumption by up to 40%. The project seeks to replicate nature's process of splitting water into oxygen and protons using manganese-based catalyst materials.
A new study shows that exercise improves three measures of heart protection in postmenopausal women, including better blood clotting profiles and reduced blood clot activation. Regular physical activity may help prevent the formation of blood clots, leading to a lower risk of heart attacks.
The Journal of Nuclear Medicine Supplement offers a comprehensive overview of radionuclide therapy, including its applications in thyroid cancer, lymphoma, and other diseases. The supplement highlights the growing importance of nuclear medicine in patient care and provides insight into emerging trends and technologies.
The 10th edition of the GeoRef Thesaurus, a guide to index terms used by GeoRef, includes new terms representing names and concepts frequently encountered since the last edition. The new edition covers complete coverage through ODP Leg 209, with 870 pages in soft cover format.
The Insulin Resistance Intervention after Stroke (IRIS) trial aims to investigate the effectiveness of pioglitazone in reducing recurrent stroke and myocardial infarction among eligible participants. The trial will enroll 3,136 participants over three years and tests the hypothesis that pioglitazone reduces risk by 20 percent.
Researchers found that elevated levels of ávâ6 expression in colon carcinoma cells are associated with reduced patient survival. The molecule is identified as an independent prognostic marker for colorectal cancer and predictive of early-stage disease outcomes.
A recent linguistics study found that people from different cultures use varying numbers of emotion words, with a greater emphasis on negative emotions. The researchers discovered that older adults tend to have more diverse vocabularies when describing their emotional experiences.
Researchers found that small male cuttlefish that change their appearance to look like females are successful in fertilizing eggs at a rate of 60 percent. The study used DNA fingerprinting and observed the cuttlefish's behavior over ten days, revealing this unique mating strategy
The study uses intense x-ray beams and electronic flight simulators to probe the muscles of flying fruit flies, revealing previously unsuspected interactions between proteins that turn 'on' and 'off'. The research has implications for understanding human heart disease and developing new models for cardiac muscle performance.
Researchers found that asthma is caused by the interaction of multiple genetic loci, contradicting earlier studies that suggested a single-gene solution. The study used an elaborate mouse model to identify specific regions on chromosomes 2 and 6 associated with airway hyperresponsiveness.
Current cardiology guidelines suggest clopidogrel as an alternative to low-dose aspirin, but recent research indicates it may impair ulcer healing and increase bleeding rates. Patients at high-risk for gastrointestinal complications should consider a combination of aspirin and stomach ulcer medications.
A new technique allows for successful cord blood transplants in high-risk acute and chronic leukemia patients, with disease-free survival rates of 57% at one year. The study's findings offer hope to thousands more patients who were previously ineligible due to lack of suitable donor units.
Researchers at Memorial Sloan-Kettering Cancer Center have identified a new oncogene called Pokemon, which is essential for cancer cell growth and transformation. The discovery opens up new avenues for targeted therapy, with a focus on blocking the protein's function to prevent cancer progression.
A recent study published by the University of Glasgow found that heroin use among Scots aged 15-54 has declined significantly, from 55,800 in 2000 to 51,582 in 2003. Additionally, the number of people injecting drugs also decreased nationally, while 18,737 still engage in injection drug use.
A team of researchers at UT Southwestern Medical Center has discovered the biochemical mechanism by which insects detect pheromones. They found that a specific protein, called an olfactory binding protein, is essential for translating pheromone signals into behavioral responses.
The study suggests that the spleen contains a population of primitive stem cells important for healing several types of damage or injury. These cells may produce an even greater variety of tissues than adult stem cells from bone marrow.
Researchers discover human body odor plays a crucial role in mosquito attraction, with certain compounds acting as repellents or masking attractant components. The findings could lead to the development of safe, naturally occurring insect repellents more effective than conventional products.
Researchers have made a major breakthrough in understanding how the FSH hormone attaches to its receptor, paving the way for improved fertility drugs. The crystal structure of FSH and its receptor reveals key details about their interaction, which could lead to the development of new oral drugs for fertility treatments.
A study confirms that implantable cardioverter-defibrillators (ICDs) are more effective in preventing sudden cardiac death than medical therapies for heart failure patients without coronary artery disease. The ICDs have shown a relative 35 percent decrease in overall mortality among these patients.
The American Gastroenterological Association recommends colonoscopy as the preferred screening method for colorectal cancer due to its ability to detect and remove precancerous polyps. In-office fecal occult blood tests are not recommended as a standalone screening test, but can be used in conjunction with flexible sigmoidoscopy.
A study found that nine different biases can cause errors in judgment when dealing with a large amount of information. Training subjects to spot these biases improved their ability to detect false-alarm opportunities and recognize specific biases, especially under time pressure.
Researchers have developed a way to distinguish and separate specific brain cell subtypes for genetic analysis using DNA microarrays. This technique will aid in understanding the development and function of the brain, potentially leading to new treatments for neurological disorders such as amyotrophic lateral sclerosis.
A study by Saint Louis University found that genetic factors account for over 50% of adult weight change, while environmental factors contribute to the remaining 50%. This suggests that individuals with a genetic predisposition to obesity face a more significant challenge in losing weight.
Researchers develop a new TMS method that produces controllable and long-lasting effects on the human motor cortex. The method uses short bursts of low-intensity pulses to overcome previous stimulation approaches' limitations.
Researchers at UCL discovered a new method to improve Transcranial Magnetic Stimulation (TMS) that can produce effects on the brain for more than an hour. By adjusting stimulation patterns, they achieved rapid and consistent changes in the motor cortex area, outlasting conventional TMS.
Researchers found a young, faint companion to a star, measuring its mass for the first time. The object is 93 times as massive as Jupiter, contradicting theoretical predictions.
Researchers at Purdue University found that a single cellular pathway produces the raw ingredients for thousands of compounds, including those with anticancer properties and fragrance. This discovery challenges long-held assumptions about plant production and has implications for essential oil production.
Hospitalized children experience preventable adverse events at significantly lower rates than adults, with birth-related and diagnostic errors being the most common types. The study suggests that processes and systems leading to adverse events in children may differ from those in adults.
Researchers examined medieval and Renaissance manuals and art to understand gladiatorial combat tactics. They infer that battles typically had three critical moments: initial contact, wounding, and grappling before concluding without bloodshed.
Researchers have unearthed four-million-year-old ancestral fossils at the Gona site in Ethiopia, shedding light on early human evolution. The discovery offers a unique glimpse into the anatomy and behavioral capabilities of our ancient relatives, revealing that they lived in low-lying areas with swamps, springs, and volcanic centers.
Researchers used PGD to select an RhD- embryo, resulting in a healthy baby girl. The technique aims to alleviate the risk of haemolytic disease of the fetus or newborn associated with RhD alloimmunization.
A study of 742 patients with newly diagnosed chronic liver disease found that ethnicity significantly impacts NAFLD prevalence, particularly among Hispanic and Asian populations. The study highlights the need for culturally sensitive education and representation in future clinical studies to address disparities in diagnosis and treatment.
Scientists have uncovered skeletal fossils of a human ancestor believed to have lived around 4.5 million years ago in northern Ethiopia. The fossils, described in the journal Nature, provide new evidence about the transformation of primitive chimp-like hominids into more human forms.
A team of researchers has solved a puzzle in climate research by explaining why micro-organisms break down carbon in soils at varying rates. The new theory predicts that an increase in climate temperatures will lead to more rapid carbon dioxide release and accelerated climate change.
Researchers developed a novel antiviral treatment using RNA interference to inhibit respiratory syncytial virus (RSV) infection in mice. The treatment, administered as a nasal drop or spray, successfully suppressed the virus's NS1 protein, preserving the host's natural antiviral defense.
Researchers have identified two genes in the interferon system strongly associated with SLE. Genetic variants of a thyrosinkinase enzyme may protect against the disease by blocking the interferon effect. The study, involving nearly 2,000 individuals, provides new insights into SLE mechanisms and potential treatment options.
An international team of astronomers using the VLT's NACO SDI camera discovered a faint companion to AB Dor A, a young star, which is 93 times more massive than Jupiter and twice as heavy as predicted. The object's mass was determined by observing its precise location and orbit around its host star.
A recent study found that male circumcision significantly reduces the risk of HIV transmission from women to men, with uncircumcised men facing a more than two-fold increased risk per sexual act. The study's results provide new insights into the rapid spread of HIV in settings where circumcision is not common.
Researchers find steady increase in Arctic river discharges since the 1960s, with annual rate of increase being 8.73 cubic kilometers per year. Human activity plays a major role in this trend, which is expected to intensify the global hydrological cycle.
A new study reveals that liver disease can impair learning ability by disrupting the glutamate-nitric oxide-cGMP pathway in the brain. Sildenafil treatment restored learning ability in rats with portacaval shunts and those with hyperammonemia, suggesting a potential therapeutic approach for patients with hepatic encephalopathy.
A study found that 60% of minors reported a parent or guardian was aware of their clinic visits, while 59% would still use the clinic for prescription contraception even with parental notification. The researchers also discovered that 18% of teenagers would engage in risky sexual behavior if parental involvement were mandated.
A new study by the University of Pennsylvania School of Medicine reveals inconsistencies in candidate-screening practices among US Assisted Reproductive Technology (ART) programs. The study found significant variation in reported likelihood of turning away candidates, with some programs accepting couples with addiction or welfare status.