Research suggests that individuals with coronary artery disease are less tolerant to anaemia during non-cardiac surgery. A study of 2059 patients found those with anaemia had a five-fold higher in-hospital mortality rate after bypass surgery despite blood transfusions, indicating the need for further investigation before surgery.
New studies suggest that vitamin D may help prevent colon cancer by activating the detoxification of lithocholic acid, a known carcinogen. Researchers found that vitamin D acts as a sensor for the toxic chemical, triggering proteins to clear it from the body.
A University of Florida chemistry professor has created a nanomotor from a single DNA strand, which is more practical and easier to control than previous designs. The device can be used in biosensors to detect specific DNA sequences related to disease and may also play a role in clinical treatment by targeting cancer cells with precision.
Researchers at Imperial College London have successfully grown human lung cells in mice, paving the way for potential lung transplants. The breakthrough could address chronic organ shortages and rejection issues, offering new treatment options for life-threatening lung diseases.
A study of 679 black women in Detroit's low-income neighborhoods found that tangible aids like child care, transportation, and money are crucial for their overall well-being. The research suggests that strengthening both emotional and instrumental support is necessary to reduce chronic stress and promote better health outcomes.
Researchers analyzed iridium levels and magnetic fields to correlate with plant and animal life, suggesting a comet or asteroid impact led to the rise of dinosaurs in the Jurassic period. This impact is thought to have cleared the way for other species to adapt, ultimately paving the way for dinosaur dominance.
A team of researchers will study the role of Rac2, a protein important in phagocytic blood cell function, using mice that lack a functional Rac2 gene and exhibit immune system defects. The long-term goal is to develop novel approaches to control phagocyte function and disease.
Rockefeller University scientists have discovered how transcription begins in bacteria, a crucial step for developing new antibiotics. The structure of the RNA polymerase holoenzyme reveals a novel protein-protein interaction that regulates transcription initiation.
Researchers have discovered a link between keratinocyte growth factor (KGF) concentrations and protection against bronchopulmonary dysplasia (BPD) in premature infants. Additionally, a new pH test offers a simple method to evaluate airway inflammation in diseases such as asthma and COPD.
A new synthetic antithrombotic drug, fondaparinux, has been shown to reduce the risk of deep-vein thrombosis (DVT) in patients after hip-replacement surgery. The study found a 26% reduction in DVT risk among patients given fondaparinux.
A recent California quake occurred near a forecasted anomaly within the margin of error of its location, validating the University of Colorado's earthquake forecasting method. The scientists used a 'state vector' to characterize seismic activity in southern California and developed a probability index to predict large earthquakes.
Researchers at the University at Buffalo's Buffalo Neuroimaging Analysis Center are providing new insights into multiple sclerosis using advanced MRI brain imaging methods. They have found that the brain's gray matter, where higher functioning is centered, is involved in MS and has identified a potential target for treatment.
Researchers at UCR discovered that animal cells use RNA silencing to protect themselves from viral infections, a mechanism also found in plants. This breakthrough could lead to new gene therapies and vaccine designs for treating recalcitrant human and animal viral diseases.
A new NASA study suggests that changes in rainfall patterns play a significant role in plant growth and carbon absorption in the United States. The research found that higher humidity combined with increased precipitation led to a 14% increase in plant growth between 1950 and 1993.
Researchers at Scripps Research Institute have identified the first temperature-sensing molecule found in keratinocytes, the major type of cell in the skin, which can detect warm and hot temperatures above 33°C. This discovery opens up new possibilities for pain therapeutics.
Research suggests that baby brains are more efficient at recognizing faces than adults, particularly monkey faces. By six months old, infants can distinguish between individual humans and monkeys, but this ability declines with age.
Researchers found a mass extinction event occurred less than 30 thousand years before giant theropod dinosaurs emerged, linked to an asteroid or comet impact. The discovery was made in lake sediments from the Newark Supergroup basins, showing a quadrupling of iridium abundance and fern spore spikes.
A gene called Sir2, long studied in yeast and worms, has a counterpart in fruit flies that plays a dynamic role in genetic regulation of early development. The study found that Sir2 appears to play a dual role, acting as both a silencer and repressor gene.
A recent study suggests that infants 'tune in' to familiar face groups and perform better at recognizing faces of humans than other species. The researchers propose that this specialization occurs only with experience in viewing faces and may signal a general change in neural networks involved in early cognition.
Researchers at the University at Buffalo have developed a new semiconducting material that exhibits key properties for spintronic devices, including ferromagnetism and hysteresis. This breakthrough could lead to faster processing speeds, non-volatility, and potentially quantum computing capabilities.
Researchers are making progress in developing preventive HIV vaccines, with six potential candidates tested in clinical trials over the past five years. The National Institute of Allergy and Infectious Diseases is currently sponsoring multiple clinical trials, which will require tens of thousands of additional volunteers.
Six finalists from various industries are vying for the INFORMS Edelman Award, which recognizes outstanding examples of operations research. The winning company will have made a significant impact on their client organization's performance, with the top prize being $10,000.
A multicenter randomized trial found that chemoembolisation significantly improves survival rates compared to conservative treatment, with 82% and 63% survival probabilities at 1 year and 2 years, respectively.
New ice core samples reveal human activities account for approximately 25% of modern carbonyl sulfide in the atmosphere. Researchers can now develop a baseline to measure the effect of human activity on atmospheric carbonyl sulfide and sulfate aerosols.
A study found that young black males and females retain sodium even after stress subsides, leading to prolonged elevated blood pressure and increased cardiovascular load. Researchers suggest this impaired natriuresis mechanism contributes to the development of essential hypertension in blacks.
Researchers found that high-fat diets lead to an accumulation of lithocholic acid, a toxic compound produced when the body processes cholesterol. The vitamin D receptor plays a crucial role in eliminating this acid, which may help prevent colon cancer. However, excessive vitamin D intake can cause other health issues.