Researchers found that African American women are diagnosed with breast cancer at an average age of 46, compared to 57 for white women. The study proposes that the excess mortality occurs partly because black women are more likely to develop breast cancer before menopause, when surgery may pose a higher risk of stimulating cancer growth.
A trial published in the New England Journal of Medicine found that treating women co-infected with HSV-2 and HIV with anti-herpes treatment significantly reduced HIV levels in genital secretions and plasma. The results suggest a new approach to reducing sexual transmission of HIV from already infected individuals.
A new framework has been established to determine schizophrenia risk based on eye movement and attention focus. Researchers found that individuals with dilute forms of schizophrenia-like symptoms are at higher risk, even if they have never had the illness.
Researchers discovered four large subglacial lakes beneath miles of ice that contribute to the formation of fast-flowing ice streams in Antarctica. These lakes appear to lubricate the bed of the stream, facilitating ice flow and preventing the base from freezing.
Researchers at Georgetown University Medical Center have isolated a protein, caveolin-1, that enhances cell death in response to Taxol chemotherapy in breast cancer cells. The protein needs to be phosphorylated to work, and its expression level can vary depending on the type of breast cancer.
Researchers at the University of Illinois developed a simple electrochemical process for direct patterning of metallic interconnects and nanostructures. The S4 process uses a patterned superionic material as a stamp, etching a metallic film in a single step.
A University of Virginia study suggests that older adults are more likely to commit suggestibility errors, where they believe an event occurred when it was suggested, and have high confidence in their recollections even if wrong. This has significant implications for the reliability of older persons' eyewitness testimonies in courtrooms.
Researchers developed an experimental vaccine that reduces stillbirths among rodents born to mothers infected with cytomegalovirus, a common virus causing mental retardation and hearing loss. The vaccine was found to greatly reduce the total amount of virus in mothers' blood and mortality rates among offspring.
Researchers used a microfluidic chip to study the mating habits of yeast cells, revealing that a second MAPK plays a crucial role in the process. The findings shed new light on how cells send and receive signals from one another and from their environment.
Recent IOM recommendations lack evidence to support claims of a drug safety crisis. A new editorial questions the science behind these reforms, citing a study on the benefits of reduced approval times over safety concerns.
Researchers found that honeydew honeys have greater antioxidant properties than nectar honeys due to their high polyphenol content and other chemical characteristics. The study suggests that honeydew honeys could be a valuable source of natural antioxidants for health benefits.
A dietary supplement called poly-hydroxybutyrate (PHB) has been found to protect brine shrimp from infection by antibiotic-resistant Vibrio campbellii bacteria. PHB is a naturally-occurring compound that can be produced on an industrial scale, offering a potential alternative to antibiotics in the fish farming industry.
Male anole lizards adjust their visual displays to overcome background noise, enabling clear communication with rivals. The findings provide insights into the evolution of signaling strategies in these species.
Research suggests treating HSV-2 infections reduces genital and systemic levels of HIV-1 RNA, with potential implications for treatment and management of co-infections.
Scientists identified a variant of apolipoprotein C1 protein associated with higher body mass index, obesity, and Type 2 diabetes in American Indians and Mexicans. This discovery can help identify risk factors for diabetes and inform diet and lifestyle choices.
Researchers have developed an artificial lateral line that mimics the functions of the biological system found in fish, enabling submarines to detect and track moving targets and avoid collisions. The device uses micro fabricated flow sensors integrated with metal-oxide-superconductor circuitry for on-chip signal processing.
New research suggests that surgery-induced angiogenesis may contribute to the racial disparity in breast cancer mortality. In pre-menopausal women, this process can encourage tumor growth, leading to poorer outcomes. The study found a mean age of 43 for diagnosis in Nigerian women compared to 64 in the UK.
Researchers found that Gab-2 is essential for breast cancer metastasis but not initial tumor growth. The study suggests a novel mechanism for breast cancer metastasis and identifies Gab-2 as a possible new target for therapies.
Researchers at the University of Cambridge have discovered that western scrub-jays plan for future food scarcity by caching food, anticipating potential shortages. This finding suggests that birds may also experience anxiety about the future, similar to humans.
A new communication protocol, SCP-MAC, has been developed to optimize energy efficiency for wireless sensor networks, reducing monitoring time from 2-3% to under 2 minutes per day. This improvement enables sensornets to watch wildlife or oilfields with longer-lasting batteries.
Researchers at the University of Cambridge discovered that western scrub-jays store food items they believe will be scarce in the future, planning accordingly. This complex behavior suggests advanced thought processes, including a sophisticated concept of past, present, and future.
A new European satellite project, Polar View, is contributing to the International Polar Year by offering real-time monitoring of polar regions. The project provides comprehensive services to over 40 international users, including government agencies and commercial interests, to help guide responses to environmental and human pressures.
A new study published in The Journal of Infectious Diseases suggests that rhinoviruses, a common cause of the common cold, are associated with hospitalizations for fever and respiratory illnesses in young children. Children with asthma or a history of wheezing have a higher risk of hospitalization due to rhinovirus infection.
Researchers at UC Davis have developed a new method to reinforce soil by injecting bacterial cultures that convert loose sand into rock, offering a safer and more efficient alternative to traditional chemical treatments.
Researchers at USC have developed SuperBot, a modular and multifunctional robot system that can reconfigure into different configurations for various tasks. The system consists of Lego-like autonomous robotic modules with internal and external sensors, enabling flexible bending, docking, and continuous rotation.
Researchers at the University of East Anglia are developing computerized lip-reading systems that can automatically convert video lip-motions into text. The three-year project aims to improve the accuracy of lip-reading, a skill that can be unreliable even for trained experts.
Researchers found reduced brain growth among adult alcoholic children of parents with a history of heavy drinking or alcoholism, affecting IQ scores. The study suggests genetic and environmental factors contribute to the increased risk for alcohol dependence in children of alcoholics.
Scientists at UC Irvine found that ozone-emitting air purifiers can create additional microscopic particles when used with household cleaning products, increasing harmful particulate matter levels. The researchers developed a mathematical model to predict whether an air purifier will make the air dirtier in a given indoor environment.