A review of medical literature found that physicians' self-assessments are less accurate than external observations of their competence. The authors recommend shifting the focus from unguided physician self-assessment to processes that provide iterative feedback and support learning.
Researchers analyzed Paulinella's plastid genome, finding it closely related to cyanobacteria and retaining ancient genetic features. The study offers insights into the establishment of plastids and the transition from single-celled hosts to complex organisms.
A 55-gene expression profile identifies children at high risk of progressive metastatic neuroblastoma. Lay health advisors improve mammography use among low-income women. Cyclin D1 inhibits STAT3, slowing breast cancer tumor growth. Researchers identify CD95/CD95L as a molecular system involved in radiation-induced pneumonitis.
A Queen's University study suggests administering low doses of carbon monoxide to pregnant women may help prevent the potentially damaging effects of pre-eclampsia, a condition affecting five to seven per cent of pregnancies. The research found that carbon monoxide may relax blood vessels and prevent cell death in the placenta.
Researchers at Lawrence Berkeley National Laboratory have developed a novel laser-based MRI technique that offers enhanced sensitivity and time resolution. The approach uses atomic magnetometry and separates signal encoding and detection steps, enabling optimized sensitivity and reducing costs.
A study found that Pycnogenol heals diabetic leg ulcers by improving blood circulation and reducing tissue necrotization. Patients treated with oral and local Pycnogenol experienced a significant decrease in ulcer size and had higher oxygen presence in the skin.
Children who were overweight as toddlers are 5 times more likely to be overweight at age 12. BMI measurements collected over an extended period show a strong correlation between childhood and adolescent obesity. The study suggests that early intervention is crucial in preventing the progression of abnormal weight gain.
A survey of parents reveals that spiritual/religious support is essential when facing a child's death. The hospital should provide an environment hospitable to spirituality, offer multi-faith chapels, and encourage collaboration between clinicians and clergy.
U of MN researchers developed a mouse model for centronuclear myopathy, a poorly understood muscle disease. They found that knocking out the gamma actin gene impaired muscle cell function, leading to muscle cell death, and identified this protein as a key player in muscle structure.
Researchers at Ohio University have created a complex biological switch using a spinach molecule, which can be used to manipulate molecules and proteins. This switch has potential implications for basic science research, medical applications, computer technology, and green energy.
A team of NYU biologists has identified a gene, mel-28, that plays a crucial role in coordinating two cellular processes: chromosome segregation and nuclear envelope function. The study, published in Current Biology, used functional genomic tools to reveal the dual role of mel-28 in these processes.
A national survey of residents found that over half reported not receiving instruction on key interpreter use topics, despite federal regulations. The study highlights the need for better training and education to improve quality care for patients with limited English proficiency.
A study on liver transplant patients found that those with low bone density before transplant showed significant improvement afterwards. Bone loss immediately following transplant was common and several risk factors were identified, including PSC, younger age at transplant, and smoking.
The American Academy of Pediatrics recommends including dairy foods in the diet of children with lactose intolerance to meet their nutritional needs. Dairy foods like milk, cheese, and yogurt provide an essential nutrient package that includes calcium, vitamin D, protein, and other nutrients.
A combination of a nucleoside reverse transcriptase inhibitor and a protease inhibitor may prevent the negative cardiovascular effects of long-term protease inhibitor use, including hardening of the arteries. This could allow patients to take their medications without worrying about these side effects.
Research by Dr. Sara Connolly reveals that discrimination against women is a major factor in the pay gap between men and women scientists in UK universities, with almost a quarter of the disparity remaining unexplained.
Scientists discover GAL83 gene that allows plants to store carbon in roots, reducing damage from herbivore attacks. This adaptation enables plants to withstand voracious insects and extend seed production period.
A new risk factor for schizophrenia has been identified by UCLA scientists, with infants having a specific immune gene that closely resembles their mothers' being more likely to develop the disease. The study suggests that this genetic match may increase fetal susceptibility to schizophrenia, particularly in females.
A study by researchers at the University of Virginia Health System found that OROS methylphenidate (Concerta) improves driving performance in teen drivers with ADHD, reducing inattentive and hyperactive errors. The study suggests Concerta should be the initial treatment for teens with ADHD.
New analyses of the PROactive Study found that ACTOS (pioglitazone HCl) significantly reduced the risk of recurrent stroke in high-risk patients with type 2 diabetes, with a 47% reduction in incidence and a 28% decrease in combined risk of death, MI, or stroke.
Researchers at the University of Cambridge discovered that African pied babbler adults continue to care for their young after they stop feeding directly. The parents call the inexperienced fledglings to areas with readily available food, improving their foraging success rate.
A study of 124 women found that hormone-replacement therapy with progestin resulted in a 10-30% increase in hearing loss compared to estrogen-only or non-HRT groups. Women on progestin showed signs of damage in both the inner ear and brain used for hearing.
A study of internal medicine residents found that nearly a third committed at least one major error, leading to decreased quality of life and worsened burnout. Resident physicians who reported self-perceived errors were more likely to screen positive for depression and experience reduced empathy.
A recent study published in Pediatrics has found that children who are overweight at any stage of their growth before age 12 are more likely to be overweight by the time they are 12. The study examined over 1,000 children and discovered that preschool-age children who were medically determined to be overweight at one of three points of...
A study led by Pasi Jänne found that a single mutation in the EGFR protein can cause drug resistance in non-small cell lung cancer. The investigation demonstrated that even tiny quantities of this mutation can lead to resistance, challenging current treatment strategies.
Researchers have demonstrated how ultrasound can briefly open cell membranes to allow entry of therapeutic molecules, which could advance gene therapies and targeted chemotherapy. The cells then quickly close the door, allowing for non-invasive drug delivery.
A recent study published in the Journal of Nuclear Medicine reveals that diabetes mellitus significantly slows nerve recovery after a heart transplant. This finding highlights the importance of understanding nervous system abnormalities to guide therapeutic efforts aimed at reducing cardiac risk for patients with diabetes.
A study suggests that more aggressive treatment with statins is necessary to lower LDL cholesterol in patients with metabolic syndrome and coronary heart disease. The analysis found that intensive therapy with atorvastatin significantly reduced the risk of major cardiovascular events, particularly in patients with metabolic syndrome.
Researchers found that increasing protein in the diet augments the body's PYY hormone, reducing hunger and aiding weight loss. High-protein diets stimulate greater release of PYY than high-fat or high-carbohydrate meals.
Researchers used a genetic tool to activate specific neurons in fruit flies, revealing that two subsets of neurons are responsible for assigning positive or negative values to stimuli. This discovery advances our understanding of how animals learn to associate cues with experiences and has implications for more complex mammalian brains.
A study found that cholesterol accumulation in the liver depletes a powerful antioxidant, making cells susceptible to inflammation and damage. Cholesterol-lowering therapies may offer a useful treatment for nonalcoholic steatohepatitis (NASH) and fatty liver disease.
Researchers at Michigan State University have identified 5,331 unique genes in the human egg, which may hold the key to understanding fertility issues and developing new stem cell therapies. The discovery could also pave the way for the creation of healthy stem cells without the need for fertilized embryos.
A new study shows that trained lay health advisers in rural communities can increase mammography screening rates among low-income and minority women. The intervention improved knowledge and beliefs about mammography screening, empowering women to schedule their own appointments.
Scientists on the NASA African Monsoon Multidisciplinary Analyses (NAMMA) mission used a combination of satellites and aircraft to study hurricanes. They found surprisingly strong winds in tropical disturbances and evidence of dry air, which typically comes from the Sahara Air Layer.
A randomized control group study found that second graders who participated in the 'Healthy Choices, Healthy Me!' program scored 20% higher on food guidance system questions and reported significant increases in selecting healthy foods. The program was also effective in changing behavior over time.
A study found that uninsured Latino children are more likely to have no regular physician and not receive needed medical care due to expense, lack of insurance, or cultural barriers. Parental non-citizenship, low family income, and older child age were associated with being uninsured in Latino children.
Researchers at IRB Barcelona have identified a crucial protein in building the nuclear envelope, a complex structure surrounding the nucleus. The discovery of MEL-28 sheds light on how this envelope is assembled and regulated.
Researchers have found that proteins essential for brain growth during development are equally important for forming long-term memories. Growth factors like BDNF play a critical role in retaining long-term memory by binding to specific receptors in the brain, and their absence can block this process.
A retrospective study by Memorial Sloan-Kettering Cancer Center suggests that radical nephrectomy is a significant risk factor for developing chronic kidney disease. Patients who underwent partial nephrectomy had a lower rate of chronic kidney disease and better kidney function after surgery.
The Braintuning project, a €2.5 million EU-funded research initiative, aims to investigate the relationship between music, emotions, and brain functions. Researchers seek to explain individual differences in musical preferences and emotional responses to music, as well as how environmental factors influence these experiences.
Susanne Wetzel and Rebecca Wright are recognized for their work on a new undergraduate degree program in cybersecurity at Stevens Institute of Technology. The program is designed to provide students with security expertise within a broad education, preparing them for careers in information assurance and computer security.
Postbaccalaureate premedical programs targeting minority and disadvantaged students show effectiveness in increasing medical school admission rates. After participating in these programs, students had a higher probability of enrolling in medical school, with some groups experiencing a 6-fold increase.
Two new breast cancer risk models use breast density to predict individual risks, outperforming the existing Gail model. The models identify high breast density as a significant predictor of breast cancer, with some studies suggesting it may be as powerful a risk factor as age.
A new model developed by scientists from Group Health and seven other health care organizations finds that breast density is a significant predictor of breast cancer risk, with women having highly dense breasts facing nearly four times the risk as those with fat-filled breasts. The study analyzed data from over 1 million women and iden...
Newborns exposed to methamphetamine in utero are 3.5 times more likely to be born underweight compared to those not exposed, with a risk of type 2 diabetes and metabolic syndrome later in life.
A new study found that individuals who become alcohol dependent before age 25 are less likely to seek treatment, experience more frequent and longer-lasting episodes, and meet more dependence diagnostic criteria. Researchers call for increased prevention and treatment efforts for this vulnerable population.
A Mayo Clinic study found that physicians who report making a major error in the previous three months experience burnout and depression, increasing the risk of future errors. The study also discovered a reverse connection, where high burnout levels increase the likelihood of an error in the next three months.
Researchers from ISREC discovered that the Nodal protein, involved in embryonic development, maintains stem cells while also providing cues for their differentiation. This understanding is crucial for coaxing stem cells to grow into specific tissues outside the body and may hold the key to controlling cancerous stem cell behavior.
Researchers studied chimpanzee progression order as they crossed two roads, finding that adult males take up forward and rearward positions depending on risk level and number of adults present. This cooperative behavior helps maximize group protection, suggesting a high level of flexibility in dominant individuals.
Researchers found that human infants and all great apes exhibit identical preferences for remembering where things are hidden. However, this preference shifts in 3-year-old human children, indicating a uniquely human developmental trajectory. The study provides insight into the evolution of human cognitive abilities and tendencies.
A viral target has been found to sustain EBV-related tumors, and blocking its activity breaks the virus life cycle. This discovery could lead to a drug that kills only EBV-positive tumor cells without harming other tissues.
A Hopkins-led study of over 600 people and their families found that siblings, parents, or children of those diagnosed with chronic severe unipolar depression before age 31 have a 2.52-to-1 chance of also having the disorder. This suggests the value of searching for contributory genes.
Researchers found that pied babblers continue to care for their young during this period, using a special "purr" call to recruit inexperienced fledglings. This novel form of extended parental care prolongs offspring care and sheds light on the sophistication of bird parenting.
Antarctica's average temperature has increased by about two-tenths of a degree Celsius, or one-third of a degree Fahrenheit, in the past 150 years. This warming trend is attributed to various factors, including natural phenomena and human-induced climate change.
A study by psychologists at the University of East Anglia found that well-educated parents are more open to designing babies, with differences in desirable traits based on age, sex, and socio-economic class. The research suggests that parents would manipulate their children's physical, psychological, or social characteristics for a per...
A comprehensive mental health study of Hurricane Katrina survivors found that serious mental illness doubled in the months after the hurricane, yet thoughts of suicide did not increase. The study revealed post-traumatic growth, with most respondents experiencing a deeper sense of meaning and greater inner strength.
A study found that medical interns frequently work beyond mandated limits, with rates of injury increasing with extended hours and fatigue. The most common contributing factor to percutaneous injuries was a lapse in concentration, followed by fatigue.
A new compound in the diarylethene family is synthesized and produces a microcrystalline film that becomes super-water-repellent when exposed to UV light, and returns to its original state with visible light. The material's surface undergoes changes in molecular structure, leading to reversible formation of microfibrils.
A new study from the Bradley Hasbro Children's Research Center and Brown Medical School reveals that African American adolescents with depressive symptoms are at a higher risk of engaging in risky sexual behavior. The study concludes that assessing depressive symptoms can help prevent future emotional disorders and HIV/STI transmission...
The Pall eBDS System is a highly sensitive culture-based test that detects bacterial contamination of red blood cells, reducing the risk of sepsis and death from transfusion. The system's novel approach to detection measures oxygen consumption as a marker for bacteria, allowing for effective detection of commonly found contaminants.
A study found that cyclin D1 gene overexpression is associated with better survival outcomes and increased sensitivity to the cancer-fighting drug bortezomib in breast cancer patients. This is because it suppresses the activity of another gene, STAT3, which promotes cell growth and prevents tumor cells from dying.
A new gene signature of 70 genes linked to breast cancer was found to accurately predict patient outcomes, surpassing traditional risk classifiers. The study's results suggest that the 70-gene signature adds valuable prognostic information, which may lead to improved treatment decisions and reduced chemotherapy for eligible patients.
The US FDA has approved a new totally implanted artificial heart, providing hope for patients with severe heart failure. The device is designed for those who are not eligible for a heart transplant and have a short life expectancy without the device.