Researchers at Dana-Farber Cancer Institute have created a complete map of the molecular 'control panels' that regulate cell growth in breast cancer driven by estrogen. The atlas contains thousands of previously unknown on/off switches, providing new insights into gene regulation and potential treatments.
Researchers found that patients with symptomatic moderate asthma treated with anti-tumor necrosis factor alpha experienced significantly fewer disease exacerbations than those on placebo. The study also showed a significant decrease in diurnal variation in peak expiratory flow rate.
A study by researchers from the University of Turin found that hospital admissions for acute heart attacks among people under 60 fell by 11% after Italy's public smoking ban was introduced. The decline was largely attributed to reduced exposure to passive smoking, with only a small fraction due to active smoking.
Researchers at UCSD discovered a key protein that enables distinct light gathering units in fruit fly compound eyes, improving visual acuity and angular sensitivity. The presence or absence of this protein can convert open to closed eye systems in insects.
Researchers investigated XPD allele interactions using compound heterozygote mice, finding that combinations of mutant alleles alleviated disease symptoms and improved gene function. This challenges the existing monoallelic paradigm, suggesting biallelic effects may occur in some patients.
A new study by mathematical biologists at The University of Texas at Austin recommends vaccine distribution strategies for potential shortages. The best approach depends on the contagiousness of the flu strain, with school children and high-risk groups being prioritized accordingly.
A survey of over 3,000 physicians found that fewer than half incorporate e-mail and Internet resources into routine patient practice. Only about 40% said they used e-mail communication with colleagues frequently.
A study found that Tadalafil (Cialis) significantly improved erectile dysfunction in prostate cancer patients who underwent 3D-CRT. Successful intercourse rates were 48% for those taking Tadalafil, compared to 9% for placebo group.
Research suggests that low birth weight infants, even those without disabilities, may face motor skills difficulties and lower cognitive abilities by adolescence. Prenatal, perinatal, and neonatal factors such as white matter injury and mechanical ventilation are associated with these outcomes.
Researchers discovered that APOBEC3G forms large RNA protein complexes to block HIV and protect against jumping genes. This finding may lead to new approaches for controlling HIV infection.
Researchers found that KEAP1 mutations in lung cancer cells increase NRF2 activity, leading to chemotherapy resistance. Meanwhile, a new study suggests targeting school-aged children for flu vaccination could help contain outbreaks.
According to a report in Archives of Pediatrics & Adolescent Medicine, approximately one-third of boys and girls aged 12-19 in the US do not meet physical fitness standards. The study found that regular physical activity is essential for maintaining good health, as low-fit youth are at increased risk of chronic diseases.
A new study has identified a key player in HIV-1's nuclear import process, revealing that host cell tRNA molecules facilitate the entry of the virus's reverse transcription complex into the nucleus. This finding sheds light on the complex mechanisms by which HIV-1 integrates its genetic material into host cells.
A study on Kentish plovers found that females are more likely to desert if there are local unpaired males, suggesting a strategy likely to persist in evolution. In species with young requiring extensive parental care, cooperative rearing is more likely to endure.
Researchers have discovered aspirin's ability to prevent blood vessel formation, a crucial step in tumor growth. By targeting this process, scientists can develop entirely new types of cancer-fighting drugs.
Researchers identify 5,400 active genes in mouse eggs, including unique ones specific to egg cells, and find evidence of rapid change in critical mammalian genes. This study provides new information on the transition from unfertilized egg to fertilized embryo.
A new multicenter research consortium, called Protocolized Care for Early Septic Shock (ProCESS), is beginning a large-scale study to determine whether specific interventions can halt the progression to severe sepsis and septic shock. The project aims to establish standard procedures to diagnose and treat sepsis in emergency departments.
Researchers at NYU and Pratt Institute discovered the mechanism behind ultramarine blue's fading, revealing that framework breakage releases color-forming molecules. This finding will aid in developing art conservation techniques to preserve cultural heirlooms.
Researchers at Oregon State University have developed stronger and less expensive wood-plastic composites that can use inexpensive plastics found in old carpet fibers. These new products have the potential to capture 20% of the decking market by 2010, reducing waste disposal concerns.
A new study led by UC Davis expert Rosie Woodroffe found that killing wild badgers to prevent tuberculosis in cattle is unlikely to succeed. Badger culling disrupts territorial behavior, leading to increased disease transmission among badgers and from cattle to badgers.
A study published in the Journal of Clinical Investigation has identified four proteins crucial for Entercoccus faecalis to form biofilms and cause endocarditis. Rats infected with E. faecalis lacking these proteins suffered less severe infections, suggesting potential new treatments.
Researchers found that treating newly diagnosed GCA patients with high-dose intravenous steroids reduced long-term need for prednisone and improved recovery. Patients who received the initial treatment had fewer relapses and were able to significantly reduce their daily dose of prednisone after a year.
Researchers at SUNY Downstate Medical Center have found that PNC-28, a human protein, can destroy pancreatic tumor cells in animals without harming healthy cells. The study's results are encouraging and suggest PNC-28 may be an effective agent in treating cancers, particularly when delivered directly to the tumor.
A recent study reveals that medical misdiagnoses often result from multiple breakdowns in the diagnostic process, including failure to order tests or follow up on patients. In contrast, patients receiving high-quality hemodialysis care are less likely to experience hospitalizations and deaths.
A major national study found that about 154,000 of 80.7 million children and adolescents nationwide had diabetes in 2001. Non-Hispanic white children had the highest diabetes rate, with type 1 diabetes being the most common form.
Two new blood tests, T-SPOT.TB and QuantiFERON-TB Gold, have improved the detection of latent tuberculosis (TB) infection. These tests offer more accurate results, faster turnaround times, and no return visits compared to traditional tuberculin skin tests.
A study of 438 children and adolescents with bipolar spectrum disorders found that those with short episodes of mania were similar to those meeting full diagnostic criteria, suggesting a need for revised diagnostic criteria. The study's results will inform changes to the Diagnostic and Statistical Manual of Mental Disorders-IV.
The University of Pittsburgh will lead a multidisciplinary consortium to investigate and determine the best methods for treating sepsis, a life-threatening disease affecting 750,000 Americans annually. The $8.4 million NIH grant aims to identify the ideal way to stop sepsis in its tracks and improve survival rates.
Children's Hospital of Pittsburgh researchers aim to develop more effective treatments for patients with chronic lung diseases, including cystic fibrosis and idiopathic pulmonary fibrosis. The $12.8 million NIH grant will support the development of new diagnostic methods and therapies.
A study of 14 adults with histories of sedative abuse found that the new sleep medication ramelteon does not appear to have effects indicating potential for abuse or motor or cognitive impairment. Ramelteon works through a different pathway in the brain and may be less likely to cause such effects.
A 4-year project called CONTENT is investigating the effects of gut infections on growth and development in young children in Latin America. The project aims to develop new diagnostic tools and prevention methods for gut infections, which cause significant deaths and health issues globally.
A study at Emory University Health Sciences Center found that giving progesterone to trauma victims shortly after a brain injury may reduce the risk of death and disability. The researchers also found a 50% reduction in death rate and significant improvement in functional outcome among patients who received progesterone.
A study in rats reports that a specific receptor for a stress-response transmitter may play an important role in stress-induced relapse. The research found that blocking this receptor suppressed alcohol drinking and reinstatement of drinking in animals with a higher preference for alcohol.
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.