Johns Hopkins researchers found that digoxin, a heart medication, can inhibit HIF-1 protein crucial for cancer cell survival. Digoxin slowed prostate cancer cell growth and reduced tumor size in mice by lowering HIF-1 levels.
A study published in CMAJ found that men with type 2 diabetes have a 3-fold risk of cardiovascular mortality compared to those without either condition. In the long term, however, the two groups had similar mortality risks.
A recent editorial emphasizes the importance of apologizing for medical errors to improve patient safety and quality of care. Canadian provinces and territories should enact apology laws to provide early settlement or no-fault compensation.
Researchers found that extended nevirapine regimens in breast-fed babies prevent HIV infection, but lead to drug-resistant strains if infected. The study highlights the benefits of six-week nevirapine therapy in preventing mother-to-child HIV transmission, despite increased risk of resistance.
A new study published by the American Cancer Society found that obesity may contribute to the development of ovarian cancer through a hormonal mechanism. Women who were obese had an almost 80% higher risk of ovarian cancer compared to those of normal weight, particularly in women who had never used menopausal hormone therapy.
Researchers propose a hybrid cap-and-trade system with controlled permits to reduce emissions uncertainty. A second paper suggests a modified carbon tax to protect poorer households. The third paper highlights the flexibility of tradable permits in allocating emissions value.
A new screening tool developed by Tel Aviv University researchers may help doctors advise young asthmatic adults on safer employment options and prevent asthma attacks triggered by physical exertion. The study found an indisputable connection between exercise and asthma, which could save lives.
Scientific evidence supports the use of copper surfaces to reduce hospital-acquired infections. Clinical trials demonstrate a significant reduction in micro-organisms on copper alloys compared to stainless steel and plastic.
Researchers at Burnham Institute have discovered that the protein kinase complex Cdc7/Dbf4 plays a crucial role in monitoring DNA damage control during replication and reinitiating replication after repair. This new understanding could lead to the development of new cancer therapies.
A study at Duke University Medical Center shows that seeing someone smoke can trigger abstinence efforts, highlighting the importance of breaking habitual responses. Brain scans reveal a marked increase in brain activity when quitters see photographs of people smoking, suggesting sensitization to smoking cues.
Research suggests government insurance programs for bank deposits are overly generous, putting taxpayers at risk. Finance professor George Pennacchi proposes reforms, including a central clearinghouse requiring collateral for derivative trading and private-market insurance rates.
A study by Emory University School of Medicine and CDC found childhood trauma increases CFS risk six-fold, with posttraumatic stress disorder symptoms further exacerbating the risk. Low cortisol levels are also associated with childhood trauma, suggesting they may be a marker for CFS risk rather than a symptom
Researchers propose new way to detect anomalies in fundamental physics principle, potentially revealing space-time variations and relativity violations. This discovery could have significant implications for understanding gravity and particle behavior.
The American College of Physicians emphasizes the need for enhanced infection control practices to prevent viral hepatitis outbreaks. Researchers also stress the importance of proper antibiotic treatment for health care-associated pneumonia, highlighting its more serious nature compared to community-acquired pneumonia.
Climate researchers show that large volcanic eruptions temporarily cooled the tropics over the past 450 years. However, recent eruptions may have been overridden by rising temperatures. The study found that higher latitudes are more sensitive to volcanism and are vulnerable to temperature shifts.
Researchers have found that Viagra amplifies the effects of a protective protein called RGS2, which shields the heart from damage caused by high blood pressure. The study, published in the Journal of Clinical Investigation, provides insights into the biology of RGS2 and its potential as a therapeutic target for heart failure.
Two experts disagree on whether all African children with fever should be treated presumptively with antimalarial drugs. Blaise Genton and colleagues argue that declining malarial transmission rates support changing the policy, while Mike English and colleagues claim there is not enough evidence to abandon presumptive treatment.
Research reveals that mutations in the LMNA gene disrupt neuromuscular junction organization, leading to muscle fiber innervation disruption. This study provides insight into the molecular mechanisms underlying Emery-Dreifuss muscular dystrophy.
COX2 in brain and spinal cord nerve cells plays a crucial role in pain caused by inflammation, particularly mechanical inflammatory pain. Mice lacking COX2 in nerve cells have impaired hypersensitivity to pain caused by physical insult, suggesting COX2 is central to this type of pain.
Researchers at the Gladstone Institute of Neurological Disease discovered that collagen VI protects brain cells against amyloid-beta proteins, which are widely thought to cause Alzheimer's disease. The study found that increased collagen VI expression can effectively protect neurons against Aβ toxicity.
Researchers at Massachusetts General Hospital and University of Pennsylvania found that COX2 in mouse nerve cells plays a crucial role in pain caused by physical insult, while PDE5 inhibition may prevent hypertrophy in the mouse heart. These findings have implications for treating conditions such as postoperative and arthritic inflamma...
Researchers are studying the mechanisms behind cytomegalovirus-induced cell death in the retina, which may lead to new treatment targets. Understanding this process could also provide insights into how the retina responds to other insults such as diabetes or infection.
Researchers identified a key role for the kinase Aurora A in stabilizing N-Myc, a primary driver of aggressive childhood cancer. The findings suggest that targeting Aurora A may not be effective in inhibiting cancer growth, highlighting the need for new therapeutic approaches.
A new study found that gas giants like Jupiter must form extremely fast, in less than 5 million years, or they won't form at all. This rapid growth spurt is necessary because the material from which they formed probably disappeared within a few million years.
Researchers at McMaster University have discovered a way to distinguish between healthy stem cells and cancer stem cells in humans. This breakthrough could lead to more effective cancer treatments that spare healthy cells.
The Carnegie Hubble Program aims to decrease the uncertainty of the Hubble constant from 10% to 3% by refining distances to galaxies using Cepheid variable stars and Spitzer telescope observations. The team will observe 700 hours of nearby galaxies, correcting for lingering uncertainties and systematic errors.
A systematic review and meta-analysis of 22 clinical trials found that commonly used pneumococcal polysaccharide vaccines do not appear to prevent pneumonia. High-quality trials only showed no evidence of vaccine efficacy, raising questions about current recommendations for the vaccine.
A team of scientists at Princeton University has identified a long-sought gene, Metadherin, that is responsible for the aggressive behavior of poor-prognosis tumors and makes them resistant to chemotherapy. The discovery paves the way for new drugs to inhibit the gene's diabolical actions and may have significant health implications.
Researchers identified two protostars located just a few light-years from the Milky Way's central black hole, defying expectations that gravitational tides would prevent star formation. The discovery suggests molecular gas at the galactic center is denser than previously thought, allowing it to form new stars.
A report from the JAMA/Archives journals found that nearly half of teens reference sex or substance use on their online profiles. A subsequent intervention study showed a single warning email from a physician reduced mentions of sex, while references to substance use remained lower over time.
Researchers discovered abnormally high copy numbers of chromosomal region 8q22 in more than 30% of breast cancers, associated with shorter survival times. The metadherin gene (MTDH) was found to play a dual role in cancer metastasis and resistance to chemotherapy.
A California study reveals that shade trees on west and south sides of homes can reduce electric bills by $25 annually. Trees planted within 40-60 feet of these sides generate similar energy savings due to shadow variations.
Researchers have provided insight into the signaling mechanisms behind high blood pressure-induced heart muscle thickening. A new study found that mice lacking RGS2 developed hypertrophy more rapidly than normal mice, leading to heart failure and death at a young age.
A federal Commissioner of Children would promote and defend children's needs by bringing together measurement systems across the country. Universal access to high-quality early childhood programs is crucial for young children's potential, according to a recent article in the Canadian Medical Association Journal.
Women with bulimia nervosa exhibit greater impulsivity and differences in brain activity compared to healthy controls. Frontostriatal circuits, responsible for regulating behavior, are also impaired in individuals with bulimia nervosa.
Research shows males are more physically active than females across all ages. Studies focusing on primary schools and the over-70s reveal girls play differently, engaging less in vigorous activities. This may contribute to higher rates of obesity among girls, highlighting the need for targeted interventions.
A new study suggests that US health care spending is unlikely to decrease without significant restrictions and limitations. The study also highlights the importance of managing risks associated with common medications used by cosmetic surgery patients, including antidepressants and herbal supplements.
A study by Sharon Shavitt found that consumers are more open to new marketing messages if they feel a sense of difficulty when thinking about brands. This can lead to a more favorable view of the brand. Consumers with the greatest need for closure were most likely to reevaluate brands after facing difficulties.
Two studies by University of California, Berkeley researchers suggest that taking maternity leave before and after birth reduces the risk of C-sections and improves breastfeeding. Women who took longer leave had lower risks of C-sections and higher breastfeeding establishment rates.
Mayo Clinic researchers studied 816 women who underwent global endometrial ablation (GEA) to assess its effectiveness in reducing menstrual bleeding. They found that only 16% of patients required hysterectomy five years after the procedure, which is nearly half of what was previously reported.
Researchers at the University of Cincinnati have identified a new tumor suppressor, protein kinase C-zeta, that may help develop targeted drug therapies to combat lung cancer. The study found that PKC-zeta normally slows down Ras transformation and prevents tumor development, but its absence or inactivity accelerates cancer growth.
A groundbreaking study by the University of Illinois found that recovery coaches can significantly reduce substance-exposed births and help reunite substance-involved families. The coaches increased reunification rates by 6% and saved the state $5.5 million in foster-care costs.
Scientists at Burnham Institute for Medical Research have determined the structure of protein interactions responsible for triggering apoptosis. The research reveals a particular arrangement of Fas receptor and FADD proteins that act as a control switch for cell death signaling.
Researchers found that vascular endothelial growth factor (VEGF) and intercellular adhesion molecule (ICAM)-1 are key players in the development of diabetic macular edema (DME), a serious complication of retinopathy. The study suggests that intravitreal injection of steroids like triamcinolone acetonide may be useful in treating DME.
Individuals with childhood trauma are six times more likely to develop chronic fatigue syndrome as adults, according to a recent study. Childhood trauma is also associated with neuroendocrine dysfunction and decreased cortisol levels, suggesting a biological pathway that influences adult vulnerability to illness.
Researchers found that key ecological threats can be detected in advance, allowing for swift policy change. Monitoring and analysis of ecosystem data are crucial to preventing regime shifts and averting ecological harm. The study's findings offer a new approach to predicting environmental disaster and informing conservation efforts.
Researchers found that a low-carbohydrate ketogenic diet resulted in a three-fold improvement in type 2 diabetes, with 95% of participants eliminating or reducing diabetes medications. This study suggests that cutting out carbohydrates can lead to significant reductions in blood sugar levels and weight.
A recent survey by March of Dimes found that only 17% of Spanish-speaking women of childbearing age take a multivitamin containing folic acid daily. Folic acid is crucial in preventing neural tube defects (NTDs), which are more prevalent in the Hispanic population.
A recent study by Cecil Lewis at the University of Oklahoma reveals that ancient microbes can provide insights into modern human health. The researchers analyzed 1,300-year-old feces from Central Mexico and found them to be more geographically structured than modern microbiomes.
Scientists at Stanford University School of Medicine and UC-San Francisco have successfully isolated stem cells from human testes, which can differentiate into various types of tissues. The findings suggest that these cells are not as pluripotent as embryonic stem cells but have unique therapeutic applications.
This year marks the 200th birthday of Charles Darwin and the 150th anniversary of the publication of his theory. Genetic Engineering & Biotechnology News is celebrating this milestone by interviewing leading researchers in evolutionary science, including experts on Darwin.
A new calibration tool has been developed to help students and soil scientists accurately measure rupture resistance, a key factor in determining soil strength. The tool consists of four pressure calibration assemblies with varying pressures, allowing users to calibrate their thumb and forefinger for precise measurement.
A comprehensive study of nearly 150,000 people in six states found that substance abuse increases medical care costs for other health problems. The study suggests that targeting older adults with substance abuse disorders could lead to significant cost savings and improved health outcomes.
Researchers establish that trophy heads came from people living in the same place and culture as those who collected them. The study suggests that fertility rites, warfare, or ancestor veneration may be linked to the collection of human heads.
Scientists have discovered a new mechanism by which the human immune system adapts to infections, involving 'cluster mutations' in antibody genes. This discovery fills a significant gap in our understanding of how we survive microbial invasions and may lead to new ways to prevent illnesses or make them less dangerous.
Research reveals that adult-onset diabetes slows mental functioning in several ways, with deficits appearing early and persisting into old age. The study found that healthy adults performed significantly better than those with diabetes on executive functioning and processing speed tests.
A new study published in PLoS Medicine found that removing user fees for primary health care changed health utilization behavior but did not improve health outcomes among children under 5 years old in Ghana. The study's findings challenge the assumption that free healthcare leads to better health outcomes.
Researchers at Stanford University School of Medicine have discovered that metastatic cancer cells use a protein called lysyl oxidase (LOX) to target specific organs. By blocking LOX expression, the cells' migration and invasion can be prevented, offering a potential new approach to treating human disease.
Scientists from CNRS and University of Reading applied linked rainfall-runoff and Integrated Catchment Model of Nitrogen (INCA-N) models to simulate daily flow and nitrate dynamics in the Garonne watershed. The study found that 75% of the NO3-N river load came from arable farming in the lowlands.
A study published in the Journal of Clinical Microbiology found that 60% of bacteria present in women with intra-amniotic inflammations were missed by traditional culture testing. The researchers identified a comprehensive list of microbial species using new DNA methods, including harmful bacteria not previously linked to preterm birth.
Two protocols, one for DNA repair homologous recombination and another for sumoylation of proteins, are featured in CSH Protocols. These methods provide a biochemical means to dissect the mechanisms of molecular processes involved in DNA repair and post-translational modification.
A recent study by Seattle Children's Research Institute found that 54% of adolescents frequently discuss high-risk activities on MySpace, including substance abuse, sexual behavior, and violence. Profiles with church or religious involvement, sports, or hobbies were associated with decreased displays of risky behaviors.
The Milky Way galaxy is rotating about 100,000 miles per hour faster than previously understood, increasing its mass by 50 percent. This increase in speed and mass brings the Milky Way closer to colliding with the Andromeda Galaxy or smaller nearby galaxies.