Researchers found that patients' immune systems counteract their normal response against donor organs, leading to graft acceptance. The discovery could help doctors monitor transplant patients more effectively and reduce dependence on immunosuppressants.
A study surveyed over 300 women aged 70+ about fitness activities, finding they generally recognize health benefits but experience strong, anxiety-driven fears of risks. The researcher recommends specialty programs addressing specific needs, improving perceptions of exercise as a viable disease risk reduction strategy.
Reduced estrogen levels caused by stress can lead to atherosclerosis and increased heart disease risk in women. Stress affects estrogen production, causing fatty deposits in arteries and potentially leading to heart attacks and strokes.
Researchers have created protein microarrays that can measure the function of thousands of proteins, enabling rapid screening of small-molecule drug candidates and profiling of enzymes in cells. The technique preserves protein function and functionality, allowing for creation of 'protein snapshots' of cells.
Researchers from the University of Pennsylvania discovered that carbon nanotubes can conduct heat exceptionally well, potentially addressing overheating issues in microchips. The discovery could lead to applications in various fields, including electric motors and aircraft components.
Researchers at Brookhaven National Laboratory identified a DNA repair enzyme deficiency in the Norin 1 strain of rice, making it more susceptible to UV damage. The team suggests that breeding or introducing genes from non-UV-sensitive strains could improve the enzyme's ability to bind and fix damaged sites.
The event brought together renowned experts to explore the potential impact of genetic advancements on society. Panelists discussed the future of genetics and its potential to revolutionize various fields.
A researcher has devised a way to make tracking more accurate by determining the amount of bending electromagnetic signals incur due to air moisture and temperature. This technology has applications in high-precision tracking radars.
Dr. Lee Hartwell has made significant contributions to our understanding of the cell cycle and its role in cancer development. His work with yeast has identified over 50 genes crucial for controlling cellular growth and division.
Elaine M. Hull receives a $602,759 Independent Scientist Award to expand her research on hormone and neurotransmitter interactions in the brain. She aims to clarify how gonadal hormones influence neurotransmitter release in the medial preoptic area, essential for male copulation in all vertebrate species.
A Vanderbilt University-led excavation has uncovered a remarkably preserved 8th century Maya royal palace at Cancuén, Guatemala, featuring over 170 rooms and 11 courtyards. The site's unique design and fine limestone construction have allowed it to remain largely intact for over 1,000 years.
A new study by Penn State and University of Nebraska researchers found that men who are moderately aggressive have stronger immune systems. The study analyzed data from 4,415 men aged 30-48 years and found that those with higher levels of aggression had higher concentrations of specific white blood cells, which could help them better f...
A recent study found consistent evidence of later freeze and earlier breakup of ice on northern waterways over a 150-year span, corresponding to a 1.8 degrees Centigrade increase in air temperature. The trend suggests climate change, but other drivers like solar activity may also be involved.
The USGS will install a monitoring well in San Jose to track groundwater pressures and assess earthquake hazards. The project aims to improve models for estimating earthquake shaking in the region, enabling better planning and design of structures to reduce damage from future earthquakes.
A study found that a testosterone skin patch can relieve impaired sexual functioning in surgically menopausal women. The patch restored normal testosterone levels, leading to improved sexual activity and pleasure, as well as overall psychological well-being. Adverse side effects were minimal.
A new mathematical model links El Niño cycles to cholera outbreaks, with a consistent 3.7-year frequency in both ENSO events and cholera cases. The study suggests an 11-month time lag between ENSO events and peak cholera incidence, likely due to increased sea-surface temperatures and bacteria-bearing zooplankton.
Scientists have assembled a 150-year lake and river ice record spanning the Northern Hemisphere, showing a steady warming trend. The average rate of change over the 150-year period was 8.7 days later for freeze dates and 9.8 days earlier for breakup dates.
A new study documents very warm sea surface temperatures in the western Pacific about 400,000 years ago, which supports the hypothesis that the tropics is a key player in global climate change. The analysis provides valuable insights into past temperature shifts and could aid numerical modelers in predicting future warming.
A new UCSF study reveals that while combination antiretroviral therapy has improved patient outcomes, it also creates uncertainty and anxiety among healthcare providers. The researchers found that providers are struggling to make informed decisions due to a lack of resources and limited information on patient adherence.
The MACE-II experiment, launched on September 8 aboard the space shuttle Atlantis, will test techniques for predicting motion and controlling vibrations in zero gravity. With multiple months of testing, researchers will interact with the experiment remotely to refine its performance.
Researchers at the University of Rochester have developed a new mouse model that mimics symptoms of myotonic dystrophy, allowing for potential treatments to be tested. The mice provide insight into the disease-causing role of mRNA and its impact on muscle fibers.
Scientists have found that the tropical Pacific Ocean played a key role in driving past ice ages, cooling by at least 3 degrees Celsius during each of the last five ice ages. This discovery challenges the long-held theory that high latitude and North Atlantic processes were the primary drivers of climate change.
The study reveals that a catastrophic global die off of vegetation led to the rapid transformation of river systems from meandering to braided streams. This shift, occurring at the end of the Permian Period and the beginning of the Triassic, was accompanied by massive extinctions of marine and land vertebrate species.
A new study published in the New England Journal of Medicine found that a testosterone patch improved sexual function and psychological well-being in surgically postmenopausal women. The study showed that treatment with higher doses of testosterone substantially improved outcomes, while lower doses had less effect.
Researchers at the University of Toronto have isolated a key protein involved in the degeneration of nerve cells in Alzheimer's disease. The newly discovered protein, nicastrin, regulates the production of amyloid beta-peptide, a toxic derivative associated with the disease.
Researchers at Northwestern University have developed a novel DNA detection method that is more accurate, less expensive, and easier to use than conventional methods. The scanometric DNA array detection method uses gold nanoparticles and a flatbed scanner to detect target DNA with high sensitivity and selectivity.
The NIH has awarded a $6 million per year grant to create the Women's Health Interdisciplinary Scholarship Program for Research, aiming to increase quality research in women's health. The program will provide salary support, coursework, and mentoring to junior faculty-clinical researchers.
A team of biologists led by Carl E. Bauer have determined that non-oxygen-producing bacterial species such as purple and green bacteria are the most ancient photosynthetic bacteria. This finding reverses conventional thinking on the evolution of photosynthetic bacteria, suggesting a complex evolutionary history.
A new study has identified biochemical remains of human tissue in a coprolite, providing definitive evidence for sporadic cannibalism in the Southwest. The analysis suggests that at least seven people were systematically cut up and consumed by residents of an Anasazi site around 1150.
The project aims to catalog the HLA gene complex and explore its differences among populations worldwide. The goal is to create a searchable database linking multiple interacting genes with function, ethnicity, and disease.
An international team is accelerating the investigation of immune-related genes to improve organ transplant matches and develop vaccines for specific diseases. The Human Leukocyte Antigen (HLA) gene complex holds clues to many medical questions.
A recent study published in Thyroid journal found paclitaxel to have significant clinical activity against ATC, with 53% of patients showing improved survival time. The drug was infused continuously over 96 hours every three weeks for one to six treatments.
New studies using satellite imagery reveal El Niño's disruption of the marine ecosystem, with a reduction in phytoplankton and an increase in nutrient-depleted waters off Baja California. The findings suggest that warm waters ushered in during El Niño resulted in a decline in phytoplankton, which are crucial for the ocean's food chain.
The University of California and Caltech are designing a 30-meter telescope called the California Extremely Large Telescope (CELT) to study distant galaxies and star formation. The telescope will have a segmented primary mirror made up of 1,080 small hexagonal mirrors, and its cost is estimated to be around $500 million.
Researchers at UC Davis discovered that multiple protein-based motors work together to build the spindle and move chromosomes during cell division. This new understanding of cellular machines could help prevent or treat disorders related to cell-division defects.
Researchers at BresaGen are working on developing cell-based therapies for Parkinson's Disease and genetic diseases using human embryonic stem cells. The company is focusing on deriving stem cells from normal adult cells to overcome ethical concerns.
The National Inventors Hall of Fame honors seven innovators, including Walt Disney and Steve Wozniak, for their contributions to the personal computer, animation, and medical breakthroughs. The inductees' inventions have improved quality-of-life materials and technologies.
A new Cornell University study reveals that residential crowding is harmful to people of all cultures, contradicting widely held beliefs. The research found no evidence that Asian Americans or Latin Americans can better withstand the adverse psychological consequences of living in crowded homes.
Researchers at OHSU's new Oregon Center for Complementary and Alternative Medicine in Neurological Disorders (ORCCAMIND) are investigating the effects of yoga on healthy elders versus traditional exercise. The study aims to improve quality of life and slow aging impacts.
The National Science Foundation-funded project aims to improve seismic design of buildings and infrastructure in the US. Researchers will collaborate using high-performance networking, shared databases, computer modeling, and simulation tools.
Marcia Guyse, a Decatur, Ala., mom, uses NASA's Educator Resource Center to plan innovative science and math activities for her home-schooled children. The center offers free workshops, materials, and online resources that align with national standards, enhancing her teaching approach.
A DNA-based flu vaccine has shown promising results in a mouse study, generating high levels of neutralizing antibodies and providing protection at a lower dose. The vaccine combines C3d with HA glycoprotein, priming the immune system against influenza.
A recent survey found significant disparities in ADHD medication treatment among Maryland public school students, with minority children receiving lower rates of medication. Special education students are almost six times more likely to receive medication for ADHD than their regular education counterparts.
Dr. David Hathaway and Paul Meyer's Video Image Stabilization and Registration (VISAR) technology refines TV images, revealing clues about crimes. The FBI has worked with them on over a dozen cases, including the 1996 Olympic bombing, improving crime scene analysis and evidence collection.
The National Science Foundation awarded the University of Illinois at Urbana-Champaign a $300,000 grant to lead a national partnership in planning and designing the NEESgrid, a virtual laboratory for earthquake engineering. This grant could potentially lead to a $10 million integration grant.
UCSF researchers found that working Latinos and African Americans are playing catch up to their white counterparts in terms of job benefits. Despite California's growing high-tech sector, many minority groups face poverty, poor health status, and limited access to pension plans and healthcare.
The study found that the Gz protein conveys signals from epinephrine, supporting the body's ability to stave off lethal blood clots and avoid strokes. The research also sheds light on human drug dependency and holds promise for the development of more effective painkillers, anti-depressants, and clot-busters.
The NYC Council has awarded $750,000 to the Consortium of New York Geriatric Education Centers and The Hartford Institute for Geriatric Nursing to train healthcare professionals in caring for older adults. The three-year program will provide geriatric training to all five boroughs and focus on nurse-led care.
The Alliance for Cellular Signaling project will study cellular communications in cardiomyocytes and B-cells using a mouse model system. The goal is to map out signals and develop a virtual cell that can be used for drug testing, with the ultimate aim of transforming cell signaling research.
University of Colorado at Boulder researchers will study the effects of spaceflight on neural development in fruit flies and investigate gene expression in kidney cells. The experiments, sponsored by NASA and the National Institutes of Health, aim to understand nerve growth and development, as well as tissue engineering applications.
Researchers found that amygdala activity levels are related to unconscious social evaluation, but not conscious attitudes. The study used fMRI to examine the role of the amygdala in racial evaluation and found a significant link between neural activity and implicit race bias.
A new mathematical model developed by University of Michigan scientist Denise Kirschner shows how HIV accelerates the normal process of homing, diverting white blood cells from the bloodstream to the lymph system. This understanding is crucial for developing effective treatments and targeting therapeutic drugs.
The Deutsche Forschungsgemeinschaft has chosen five locations to develop bioinformatics capabilities, focusing on Bielefeld, Munich, Leipzig, Saarbrücken, and Tübingen. The initiative aims to boost Germany's attractiveness in life sciences and academic research.
A $10 million-per-year project allows researchers worldwide to collaborate on studying cell signaling, with the goal of developing a 'virtual cell' for testing new drugs. The Alliance for Cellular Signaling (AFCS) will help understand the global properties of cellular signaling, leading to breakthroughs in medical research.
Biochemist Joe Ogas' research on the PICKLE gene reveals a biochemical switch that could help understand cancer and develop new oil crops. Plants with mutated genes produce roots storing oils like seeds do, but also exhibit pickle-like swellings.
A UCSF study reports that despite a strong labor market, job loss, short tenures, and poverty-level incomes are common among some Californians with physical or mental health problems. Workers in poor health often face poorer working conditions and lower earnings, while those who lose jobs may develop symptoms of depression.
A new study reveals Parkinson's disease is associated with a loss of norepinephrine-producing nerve endings in the heart, improving understanding of the disorder's development and potential prevention. This finding also sheds light on orthostatic hypotension, a common complication characterized by dizziness and fainting.
Two researchers at Cornell University have made important theoretical discoveries that establish the principles of crystal bonding for a group of thousands of compounds. The 'Papoian-Hoffmann bonding formula' is based on magic numbers, designating stability in linear, square and cube lattices.
A new study reveals extraverts are more sensitive to rewards in social situations, which drives their sociability. This finding has been replicated across 39 countries and challenges the notion that sociability is a core feature of extraversion.
Researchers found that attempting to control reactions to emotional events weakens memory, but reappraisal strategies have no such impact. The study suggests that expressive suppression, which involves continually monitoring and correcting oneself, consumes cognitive resources and reduces accuracy of event details.