A recent study published in Archives of Internal Medicine found that combined hormone therapy significantly increases the risk of abnormal mammograms and breast biopsies, compromising their diagnostic performance. The research involved 16,608 post-menopausal women and revealed a four percent greater risk of mammogram abnormalities afte...
A new study by UC Santa Cruz researchers found that rats on islands in the Aleutian Archipelago dramatically alter the intertidal zone, reducing seaweed and increasing snails, barnacles, and other invertebrates. The presence of rats also leads to a trophic cascade, resulting in reduced seabird populations and altered marine ecosystems.
A global malaria map reveals a significant reduction in risk, with 1 billion people under lower infection rates. The map, produced by the Malaria Atlas Project, provides critical data for targeted control measures and potential elimination efforts.
Researchers at Iowa State University contributed to the draft sequence of the corn genome, providing valuable data for plant scientists to improve crops. The genome's complexity, with 2.5 billion base pairs and repetitive code, was overcome using advanced software technology, enabling faster assembly and analysis.
Research suggests that about one in four women with HIV expect pregnancy and motherhood, with younger women more likely to make this choice. The study highlights the need for clinicians to discuss pregnancy options with HIV-positive women of childbearing age.
A study examining long-term outcomes following blood clots found that patients with pulmonary embolism are at higher risk of experiencing recurrent clotting, major bleeding episodes, or death. The research also highlights the need for better anticoagulation strategies to reduce complications in the community setting.
Recent discoveries at Yalbac, a Maya center in Belize, suggest that different groups, including nobles and commoners, built temples. The archaeologist's findings indicate that non-royals had the freedom to choose which temples to worship in and support.
Researchers at UNC Chapel Hill have created silica nanoparticles that store and release nitric oxide to kill bacteria effectively. This approach avoids the issue of controlling NO release with small molecules, which can be toxic to healthy cells.
A new study published in PLoS Medicine suggests that antidepressants only provide clinically significant benefits for a small group of severely depressed patients. However, even among these patients, the improvement is not very great, and depressed people can still improve without chemical treatments.
Tropical disease experts believe African sleeping sickness could be eliminated with maintained control efforts, but risk of losing disease control capacity remains. The greatest challenge will be to increase and sustain existing control efforts using available tools.
Two oxygenation events in ancient oceans between 635 and 551 million years ago led to the increase and spread of complex life, including animals. This finding supports the growing view that life and environment co-evolved during this tumultuous period of Earth history.
The 2008 HealthGrades America's 50 Best Hospitals list identifies top-performing facilities with superior patient outcomes, including an average 27% lower mortality rate compared to all other US hospitals. These elite hospitals demonstrate consistent quality care across multiple procedures and diagnoses.
A new Saint Louis University study suggests that nursing home residents can form strong connections with both real dogs and robotic companions like Aibo. The research found that these interactions alleviate loneliness and attachment issues in residents.
Researchers create hair analysis method to track past movements of suspects or unidentified murder victims based on hydrogen and oxygen isotope levels. The technique helps identify general geographic areas where individuals drank water, providing a valuable lead for law enforcement.
A new book by Professor Frank Trentmann shows that Free Trade was once a popular movement in Britain, promoting citizenship, justice, and democracy. It argues that consumerism did not necessarily make people apathetic, but rather mobilized them politically.
Researchers at University of Maryland's Institute for Advanced Computer Studies create SOMA Terror Organization Portal (STOP) to analyze and forecast terrorist organization behavior. The technology allows analysts to query learned rules, network with other experts, and test theories using data-driven forecasting capabilities.
A new study from Duke University Medical Center found that heart failure incidence declined among the very elderly, while overall cases rose due to an aging population. The study examined Medicare beneficiaries' claims between 1994 and 2003 and found a decline in heart failure rates among those aged 80-84 years old.
Scientists have discovered Antarctic krill thriving in deep waters, down to 3000 meters, contrary to earlier assumptions about their surface-dwelling nature. This finding sheds light on the complex behavior of marine organisms and highlights the importance of exploring the deep sea to understand our planet.
Researchers at Ohio State University identified two proteins, MprF1 and MprF2, that contribute to bacterial resistance by altering the electrical charge of cell membranes. This finding could lead to the development of new drugs targeting bacterial resistance at its cellular source.
A Phase II study found that the tenofovir gel was favorably self-applied and well-tolerated by HIV-negative women, with 80% following instructions to use the gel after sex. The researchers plan to proceed with larger studies to determine if the gel can prevent HIV infection.
A team of linguists, led by Professor Michael Krauss, will document 11 endangered languages in Alaska using a $1.2 million grant from the National Science Foundation. The project aims to preserve the Atuuan dialect, Southern Tsimshian, and other critically endangered languages.
Researchers analyzed over 3.6 million patient records to find thousands of cases of probable undiagnosed diabetes in the UK. The study suggests that tens of thousands of people may be at risk of diabetes and require further assessment.
Erin Lavik, an assistant professor of biomedical engineering at Yale University, was recognized as one of the Connecticut Technology Council's 2008 Women of Innovation. Her research focuses on developing new therapeutic approaches for spinal cord injury and retinal degeneration.
A study of post-menopausal women found that hormone therapy increased the risk of abnormal mammograms and breast biopsies, while also decreasing the effectiveness of these methods for detecting breast cancer. The therapy may delay diagnosis and increase breast density, which can lead to a higher risk of breast cancer.
The completed draft sequence of the corn genome will enable researchers to accurately and efficiently probe the genetic blueprint for the corn plant. Scientists can now look for ways to improve breeding, increase crop yields, and resistance to drought and disease.
Researchers at the University at Buffalo found that up to 20% of patients taking aspirin for stroke and heart attack prevention do not respond to the medication, leading to increased risk of clinical failure. The study also identified factors associated with aspirin resistance, including younger age and underlying vascular disease.
The Omololu Falobi Award honors advocates for their work in community advocacy and international leadership in HIV prevention research. Srikrishnan Aylur Kailasam was recognized for his role in working with marginalized communities, while Lori Heise received the award for her leadership in microbicide research as a partner.
Researchers at Indiana University School of Medicine have isolated biomarkers in the blood that identify mood disorders, providing an objective tool for diagnosing and assessing the severity of illness. The discovery may alter the way bipolar illness is diagnosed and treated, offering a new approach to psychiatric treatment.
A recent study found that US disparities in health status have reversed since the 1960s, contrary to previous findings. The research demonstrates that improvements in overall population health led to declines in social inequities in health between 1966 and 1980.
Researchers are facing the challenge of balancing computing power and storage technology in high-performance computing (HPC) environments, as noted by Virginia Tech's Ali R. Butt. Modern scientific computations require powerful computing resources and manage large amounts of data, with terabyte speeds becoming increasingly common.
The 5th annual Keys bonefish population census has shown a fairly steady population of approximately 364,000 bonefish, indicating reliable research methods. The study also highlights the importance of understanding the bonefish population for environmental conservation and sustainable tourism in Florida.
A new approach identifies five genes involved in myelination and six genes involved in growth factor signaling as potential biomarkers for high and low mood states. The study suggests that blood biomarkers may offer an informative window into brain functioning and disease state.
A new global malaria map highlights the 2.37 billion people at risk from Plasmodium falciparum, with almost one billion in areas where the risk of infection is extremely low. The map aims to help researchers and funding agencies allocate resources more effectively by understanding the relative risk affecting different regions.
A comprehensive study published in Archives of Internal Medicine reveals that nearly 70% of Americans with dementia receive antibiotic medications, particularly in the final stages of their disease. The researchers warn that this practice poses a significant public health risk due to the emergence of antimicrobial resistance.
A Phase II study has shown that tenofovir gel is safe for daily use and most women adhere to the regimen, suggesting a potential new approach to preventing HIV transmission. The findings are significant for women who are at high risk of infection due to heterosexual intercourse.
A new study has revealed in high definition how a blood protein gives blood clots their elasticity. Fibrinogen molecules form elastic fibers that seal the vessel, with cells like platelets filling the gaps. The protein's flexibility can be enhanced or altered by changing calcium levels or pH.
Researchers at University of California and University of Virginia develop novel technique to quantify molecular concentrations and aggregation states in real-time. This new method, N and B analysis, enables fast and spatially resolved imaging of protein interactions in complex cellular processes.
Researchers at Columbia University Irving Medical Center discovered a new gene involved in determining hair texture in humans. Mutations in P2RY5 cause hereditary woolly hair, which is characterized by coarse, dry, tightly curled and sparse hair.
A recent study published in the Journal of Neuroimmunology found that mothers of autistic children may produce antibodies against their fetuses' brain tissue, which can cause changes leading to autism. The study suggests an association between maternal antibody production and developmental regression in children with autism.
Researchers develop phylogenomic toolkit to analyze lemur genomes, confirming a single ancestral species for the diverse array of lemurs. The study provides insights into primate evolution and highlights the importance of Madagascar as a biodiversity hotspot.
A global malaria risk map has been released, revealing high-risk areas and providing estimates of people living in low-risk zones. The map identifies regions where existing control strategies can be used to eliminate P. falciparum transmission, potentially reducing deaths in sub-Saharan Africa.
The number of elderly individuals newly diagnosed with heart failure has declined, but those already living with the condition have increased steadily since 1994. This study found a significant economic burden on Medicare due to an aging population.
Harding Middle School of Cedar Rapids, Iowa, won the IEEE-USA Best Communications System Award for its innovative 'xMax' technology, providing fast and non-line of sight connectivity. The students also developed a comprehensive 'Smart Home Programming' system to control their city's infrastructure.
A study found that honey bees invading new areas benefit from the genetic endowment of their predecessors, with functional genes from European bees providing an advantage. This discovery sheds light on the evolutionary mechanism behind the expansion of honey bees into temperate regions and their ability to thrive in harsh winter condit...
Scientists warn that butterflyfish, such as the Chevroned Butterflyfish, are at risk of extinction due to their specialized feeding habits. The coral reefs' decline is threatening these fish's survival as they can only eat one type of coral, leading to a high risk of extinction.
Engineers at Harvard University have developed a novel optical tweezer that can perform calibrated force measurements with high precision. The device, consisting of a Fresnel Zone Plate fabricated on a glass slide, has the potential to revolutionize biological and microfluidic applications.
A new chemical toolkit analyzes mitochondrial function and identifies key aspects affected by individual drugs. The study found that certain cholesterol-lowering statins interfere with mitochondria energy levels, while disrupting the cell's cytoskeleton boosts gene expression and reduces toxic byproducts.
Researchers found that high zinc levels inhibit cell growth, upregulate growth arrest and DNA damage-induced gene (Gadd45) expression, and block cell cycle progression in normal human bronchial epithelial cells. Gadd45 plays a crucial role in maintaining genomic stability and apoptosis.
A new CU-Boulder study reveals a 500% increase in West US dust levels over the past two centuries, primarily caused by westward expansion and livestock grazing. The research indicates 'dust fall' is five to seven times heavier than at any time in the previous 5,000 years.
Researchers at the University of Bonn have identified a gene responsible for Hypotrichosis simplex, a rare hereditary form of hair loss. The study's findings offer new hope for developing targeted therapies for various forms of hair loss.
Researchers at Baylor College of Medicine found that Notch stimulates early proliferation of osteoblastic cells responsible for bone formation. However, when Notch function is abolished in these cells, osteoporosis occurs due to an imbalance between bone formation and resorption.
Researchers at Vanderbilt University Medical Center have identified a small protein that specifically recognizes tumors responding to chemotherapy, allowing for rapid visualization of cancer response in mice. This breakthrough could enable more efficient treatment customization and accelerate the development of new cancer drugs.
Farmers perceive genetically modified (GM) crops as a means to reconcile high-quality food production with environmentally sensitive farming. They are more interested in the practical applications and potential benefits of GM crops rather than any moral or ethical concerns.
Research finds that TS genotype is associated with protein expression levels, which can predict patient response to 5-FU-based chemotherapy. Patients with triple-repeated genotypes have higher intratumoral TS protein expression and better clinical outcomes.
A team at CSHL led by Professor Leemor Joshua-Tor discovered a new wrinkle in the regulation of gene expression that governs metabolic state in yeast cells. The discovery revealed a key role for the NADP molecule in adapting to changes in nutritional environments.
A new study found that patients who prefer a highly active role in their treatment do not necessarily have better luck managing chronic health conditions. Those who preferred an active role had higher blood pressure and cholesterol levels over a 12-month period compared to those with a less active approach.
A novel hMSH2 gene mutation was found in a Chinese HNPCC kindred, associated with an increased risk of colorectal cancer in four successive generations. The mutation resulted in Asp 603 Gly of hMSH2 and was present in four out of ten family members.
A study published in the New England Journal of Medicine found that patients who underwent surgery for spinal stenosis showed significant improvement compared to those treated nonsurgically. After two years, 63% of surgical patients experienced a major improvement, while 29% of non-surgical patients reported similar results.
The Otho S.A. Sprague Memorial Institute has awarded Rush a $124,633 grant to support a first-of-its-kind patient-safety project using mediation to resolve disputes and prevent adverse events. The program aims to reduce future medical malpractice actions and improve quality care.
The Otho S.A. Sprague Memorial Institute has awarded Rush University Medical Center a grant to support a first-of-its-kind childhood obesity project. The 18-month pilot program aims to prevent childhood obesity by combining biomedical and psychosocial approaches, involving families and healthcare professionals.