A synthetic vitamin E derivative, á-TEA, has been shown to inhibit the spread of aggressive mammary cancer in mice when mixed into their food. The study found a 4.8-fold reduction in tumors that spread to the lungs, suggesting potential use as a dietary supplement for treating human metastatic breast cancer.
Researchers discovered that Antarctic midge larvae continuously produce heat-shock proteins to withstand environmental stresses, whereas adult midges only express these proteins during extreme stress. This unique mechanism offers the larvae protection and allows them to thrive in Antarctica's harsh conditions.
Researchers found that melanocytes use a mechanism called premature senescence to prevent cancer-causing mutations from triggering melanoma. This process involves the endoplasmic reticulum, which senses oncogene activity and triggers a response that stops cell division and prevents tumor growth.
Research studies reveal that women are more likely than men to diet, while men tend to focus on exercise for weight loss. Additionally, a study of children's sugar intake found that school vending machines and fast-food restaurants contribute significantly to high consumption of sugar-sweetened drinks.
A study by Virginia Commonwealth University researchers suggests a strong genetic link between neuroticism and major depression. Using twin modeling, they found that neuroticism is a substantial predictor of depression, with a significant proportion of the genetic vulnerability shared between the two traits.
Children with attention-deficit/hyperactivity disorder (ADHD) experience increased healthcare costs in the two years before and after diagnosis compared to those without ADHD. White children have higher expenses than other ethnicities, reflecting a possible cultural factor in treatment acceptance.
Researchers surveyed 212 teenagers from Cincinnati neighborhoods with high lead concentrations and found a significant correlation between elevated childhood blood-lead levels and the risk for multiple, unintentional injuries later in life. The study suggests that early-life exposure to lead can cause lasting health effects impacting f...
A study found that 13% of children and adolescents with autopsy records had fatty liver, while 9.6% of the living population in San Diego County had the disease. The team identified major risk factors, including age, ethnicity, gender, and obesity.
A study found that second-generation antipsychotic medications do not offer significant benefits compared to older first-generation antipsychotic drugs for patients with schizophrenia. The findings contradict the widely held perception that second-generation agents are safer and more effective.
A new study at the Université de Montréal found that caffeine taken before a night shift or studying significantly hurts recovery sleep the next day. Caffeine makes daytime sleep episodes too shallow to override the biological clock, reducing sleep efficiency and duration.
A new study confirms that sea lice from fish farms are a major threat to wild salmon, with up to 95% of juveniles killed by infestation. The research found an increasing number of salmon deaths over the migration season, highlighting the severe impact of large-scale aquaculture.
A team of researchers reviews existing research on LDL cholesterol and heart health, concluding that there is no valid evidence to support ultra-low LDL targets. They suggest focusing on statin therapy for high-risk patients regardless of their cholesterol levels.
Researchers identified brain circuits motivating desire to overeat in obese individuals, linked to the same circuits that cause addicted individuals to crave drugs. The study found significant changes in brain metabolism associated with emotional behaviors and eating habits.
Researchers at Rice University have created a single-pixel camera that captures high-resolution images by taking multiple snapshots of a single point of light. The camera uses compressive sensing and micro mirrors to assemble the image, making it more energy-efficient than traditional digital cameras.
The Infectious Diseases Society of America has updated its Clinical Practice Guidelines for the diagnosis and treatment of Lyme disease. The new guidelines include recommendations for a single dose of antibiotic for high-risk patients and expanded discussion on chronic post-Lyme syndromes.
A new study published in Pediatrics found that preterm birth caused over one-third of infant deaths in the first year of life. The study used a new method to classify causes of infant death and found that premature birth was the leading cause, followed by birth defects.
OHSU researchers show that CD8+ T-cells can literally eat virus-infected cells, providing insight into the human immune system and potential new way to gauge vaccine effectiveness. The discovery may help determine vaccine efficacy by measuring T-cell response to and consumption of a candidate vaccine.
Researchers at University of Texas Medical School identified proteins required for E. faecalis endocarditis, potentially leading to new treatment approaches. In another study, tumors induce immunosuppressive inflammatory monocytes that can blunt the anti-tumor immune response, providing new avenues for cancer therapy development.
Researchers have developed a highly sensitive NMR probe to analyze small samples, unlocking volumes of information from tiny amounts of venom. This breakthrough could aid in finding natural substances for medicines and advance understanding of Alzheimer's disease.
The study reveals that large-scale theatrical events helped ground community identities and imposed elite ideologies on the rest of society. The prominent role of state theater in Maya politics is centered around the images of supreme leaders, who were constantly evaluated by their subjects.
Researchers at Ohio University have created an effective interface between a semiconductor and ferromagnetic metal, nearly eliminating intermixing of the two layers. The new magnetic-semiconductor bilayer operates at room temperature, solving a long-standing problem in spintronics technology.
A new paper explores the theoretical biases that make Christians difficult for anthropologists to study. Joel Robbins argues that anthropology relies on a science of continuity, while Christianity emphasizes decisive breaks and temporal ruptures. This bias has neglected the social importance of Christianity globally.
A severe storm in the Gulf of Alaska generated an ocean swell that broke apart a giant iceberg floating near the coast of Antarctica, more than 8,300 miles away. The research team discovered that the iceberg had moved due to sea swell, and their findings raise the possibility that global warming could affect far-flung parts of the globe.
A survey of over 2500 men found that almost half who paid for sex had a current partner. Unprotected oral sex was twice as common among those who paid locally, highlighting its role in transmission of STIs.
Behavioral therapies produce reliable changes in bedtime problems and night wakings in infants and children, with 82% of children benefiting from treatment. For women with obstructive sleep apnea (OSA), early diagnosis and treatment can reduce healthcare costs and improve sleep quality.
Researchers found that a defective version of the NPRL2 tumor suppressor gene makes lung cancer cells resistant to cisplatin, a common chemotherapy drug. Gene therapy targeting this gene may restore sensitivity to cisplatin, offering new hope for treating resistant lung cancer.
A new study published in JCSM found that brief behavioral treatment for insomnia (BBTI) significantly improves sleep quality and daytime symptoms of anxiety and depression in older adults. The study showed a 71% favorable response rate among BBTI participants, compared to 39% in the control group.
A population-based study found that people with hand osteoarthritis had significantly shorter white cell telomere lengths compared to those without the disease. Telomere length was also associated with the severity of osteoarthritis, suggesting a link between biological ageing and degenerative inflammatory bone disease.
Researchers found that a specific serotonin receptor regulates brain emotional responses, potentially contributing to depression risk. The study suggests antidepressants may work by shifting this receptor's availability, modulating amygdala reactivity and improving depressed mood.
Scientists at the University of Texas Medical Branch discovered that blocking a single enzyme called aldose reductase can stop colon cancer cell growth. In mouse experiments, tumor progression was completely halted when human colon cancer cells were treated with genetic material that prevented the production of this enzyme.
Researchers at the University of Illinois Chicago have identified an antibiotic that specifically targets the FoxM1 gene, which is responsible for cancer cell proliferation. The antibiotic, siomycin A, was found to induce cancer cells to commit suicide in a process called apoptosis, with no effect on normal cells.
Researchers have successfully cloned mice using fully differentiated blood cells, disproving the need for adult stem cells in the process. The study found that these cells were more efficient than stem cells or progenitor cells, paving the way for new approaches to animal cloning.
A team of astronomers discovered that many large galaxies in the early universe had a low stellar birth rate, suggesting a cosmic 'birth control' mechanism that prevented excessive star formation. The study found that these galaxies formed stars when the universe was just 20% of its current age.
A US survey of obstetricians and gynecologists found that one in three doctors believe free drug samples impact their prescribing choices. More than half of respondents felt it was ethical to accept free samples or lucrative consultancy offers from pharmaceutical companies.
A new Stanford University School Medicine study finds that nearly as many men as women experience compulsive buying disorder, which is marked by binge buying and financial hardship. The study's findings contradict the widespread belief that most compulsive buyers are women.
Researchers discovered that Ets1/2 transcription factor controls early heart formation in the sea squirt Ciona intestinalis. The signaling molecule FGF also plays a crucial role in this process.
A recent European survey of post-menopausal women with early breast cancer found that information needs are not being met, leading to low levels of patient involvement in treatment decisions. The survey revealed significant knowledge divides among patients, particularly older women and those with lower education levels.
Researchers at Duke University Medical Center identified the SOX2 gene as crucial for taste bud development, revealing its role in stem cell transformation and cellular differentiation. The findings may lead to a better understanding of developmental disorders and provide insights into how stem cells operate in adults.
Australian and South African sites selected as top contenders to host the Square Kilometre Array (SKA) radio telescope, with low man-made signals a key requirement. Both countries' sites offer stable ionospheric conditions and a good view of the southern sky, ideal for detecting cosmic radio waves.
Researchers at NIST have measured the Einstein-de Haas effect in a ferromagnetic thin film, shedding light on magnetization dynamics and g-factor calculations. The study provides a proof-of-concept for using this effect to determine critical material properties for data storage and spintronics applications.
International experts issue checklists to address the interests of the world's most disadvantaged during a pandemic. The Bellagio Statement of Principles aims to improve public health planning and response with the needs of poor groups in mind.
The HLPR Chair system provides powered mobility and allows patients to move to and from beds, chairs, and toilets without assistance. It reduces caregiver and patient injuries through its lifting ability and center of gravity management.
New NIST study reveals portable radios can't withstand high-temp fires without protective gear, posing communication risks to firefighters. Radios inside pockets or gear fared better, but exposed components failed quickly.
A study conducted at the University of California, Davis found that contrast-enhanced sonography accurately depicted 91% of liver, spleen, or renal injuries, outperforming non-contrast enhanced sonography.
A new study has discovered that people with tone deafness lack white matter in the right inferior frontal gyrus, a key area for musical skills. The findings have implications for understanding normal music acquisition and diagnosing this lifelong disability.
A Georgetown University researcher warns of a growing epidemic of hookah smoking, citing equivalent toxic effects to cigarette smoking and a disproportionate impact on young women. Studies show that waterpipe tobacco smoke can penetrate deeper into the respiratory tract than cigarette smoke, increasing cancer risk.
A new study by Queen's University biologist Virginia Walker has discovered a way to isolate bacteria that can create better ice cream and artificial snow from soil in more temperate environments. The technique, called ice affinity selection, involves forming an 'ice finger' to select for bacteria that gather on the surface of ice.
A recent study found that adults infected with the common cold virus easily transferred the virus to 35% of surfaces touched, and even to an uninfected person by fingertips 18 hours after initial contamination. The virus was also found on a third of objects and surfaces in hotel rooms.
Researchers have identified a protein, STM3117, that helps Salmonella evade immune cells, allowing the bacteria to multiply inside macrophages. The discovery presents a promising target for developing new drugs, vaccines, and rapid diagnostics to combat food poisoning caused by Salmonella.
Researchers discovered that a dissolved form of manganese can keep toxic hydrogen sulfide zones in check by reacting with oxygen and hydrogen sulfide. This finding alters the understanding of manganese aqueous geochemistry and has implications for waterways like the Black Sea and Chesapeake Bay.
Researchers found that adults infected with rhinovirus, the cause of half of all colds, can contaminate hotel room objects, leaving an infectious gift for others. The study, conducted in hotel rooms, shows that viruses can survive on surfaces for at least a day.
A population-based surveillance study found that treatment with Tamiflu (oseltamivir) significantly reduced mortality from seasonal influenza in severely ill adults. The study, conducted in Ontario, Canada, showed a 71% reduction in death from influenza among treated patients.
The Iraqi public demonstrates the highest levels of intolerance to foreigners, with extraordinarily high levels of ethnic solidarity. Despite this, a majority of Iraqis (85%) believe democracy is the best form of government and their commitment seems genuine.
A new study by the American Academy of Family Physicians recommends a 39% increase in family physicians to address the growing health care needs of Americans. The report asserts that without reform, millions will struggle to access high-quality primary care.
Researchers at UGA have discovered a species-specific cell-wall carbohydrate in B. anthracis, making it an important target for diagnostic tests and potential vaccine additives. The molecule's unique structure could help develop new vaccines and diagnostics to combat anthrax.
The efficacy of AVELOX in treating complicated intra-abdominal infections was highlighted at ICAAC. The study showed that once-daily AVELOX monotherapy was as effective as combination therapy, with overall clinical cure rates of 80.9% and comparable duration of therapy.
The Living While Black index combines economic, social, and health factors to assess the quality of life for African Americans. Religiosity serves as a buffer, reducing the impact of stressors. Economic factors like poverty rates and business sales negatively affect quality of life.
A study found that patients who exercised prior to hip and knee replacement required significantly less inpatient rehabilitation, walking more than 50 feet at discharge. The exercise program improved lower-extremity muscle strength and function before and after surgery.
A new study published in Arthritis Care & Research found that weight training did not improve knee strength in patients with osteoarthritis, but may slow progression of joint space narrowing on X-rays. Patients who participated in strength training showed less joint space narrowing than those in a range-of-motion regimen.
Duke University researchers developed a computer model to predict the effectiveness of various microbicidal recipes in destroying HIV before it reaches body tissues. The study found that a thin coating of microbicide delivered to the vagina can significantly reduce HIV transmission.