A 2002 survey of US physicians found that while most are willing to help in emergency situations, few feel adequately prepared to handle bioterrorism. The study revealed a significant gap between willingness and readiness, with many doctors unsure of their role in disaster response systems.
A study found that physicians often fail to discuss out-of-pocket costs with patients, leading to financial burden and skipped medication. Discussing costs can make a difference, enabling physicians to seek less expensive alternatives.
Researchers found that specific cells in the bird's brain become 'tuned' to what the bird is learning, responding strongly to familiar songs and motifs. The study suggests that experience modifies the brain to highlight important motifs, allowing birds to recognize individual songs.
A Phase III trial found that pemetrexed and cisplatin significantly improved one-year survival rates for mesothelioma patients to 56.5%, compared to 41.9% for those receiving only cisplatin.
Plant fertility depends on understanding how pollen tubes navigate towards egg cells. Researchers identified a key molecular signaling system involving gamma-amino butyric acid (GABA) that guides pollen tube growth.
A study of over 5,980 women aged 67 or older found that breast cancer survivors had 34% fewer hospitalizations for heart attacks than non-survivors. The protective effect increased with higher cardiac risk factors, suggesting that female hormone levels may play a role in preventing heart disease.
A study published in the American Journal of Human Genetics has identified two overlapping genes on chromosome 13 as increasing susceptibility to bipolar disorder, affecting 2 million Americans. The same gene complex is also linked to an increased risk for schizophrenia.
A universal consent form improved the consent rate for invasive procedures in ICU patients from 53% to 90.5%. This allowed patients and families to make more decisions and enabled healthcare providers to be more responsive to their wishes.
Scientists discover five new species of salamanders from Asian sites, including Chunerpeton tianyiensis, which closely resembles the North American hellbender. The newly found species offer unique features such as unicapitate ribs, with implications for understanding the evolution of salamander families.
A study found that 26% of jurors sanctioned deception by doctors to obtain care, while 70% favored appealing denied requests. The public's lack of trust in the healthcare system has led to support for 'physician gaming' to gain access to needed care.
A daily aspirin regimen was found to significantly reduce the occurrence of pre-cancerous polyps in patients with a history of colorectal cancer, lowering their risk by about one-third. Aspirin's protective effect also prevented the development of new adenomas and reduced the number of existing polyps.
Researchers identified a complete iron-acquisition pathway in Staph. aureus, which also applies to Anthrax and Listeria. This discovery could lead to the development of new drugs to disrupt the pathway and prevent infection.
A two-year study found that hospitalists reduced average patient stays by half a day, resulting in $782 per-patient cost savings. Hospitalists also achieved lower short-term mortality rates, specifically a 37% reduction in 30-day mortality.
Researchers have found a gene mutation that causes acute megakaryoblastic leukemia in children with Down syndrome, increasing their risk by 10-20 times. The discovery highlights the importance of GATA1, a transcription factor regulating red blood cell and platelet production.
Jake Socha's research on the Chrysopelea paradisi reveals that the snake glides by undulating its body, changing amplitude and frequency while airborne. The study provides new insights into the aerodynamics of these 'flying' snakes, which can glide up to 70 feet across.
Researchers developed a gene therapy combining radiation therapy and cisplatin to target tumor cells, resulting in significant regression with no additional toxicity. The treatment uses a modified cold virus to insert the TNF gene into tumor cells, enhancing anti-cancer effects.
Researchers discovered a direct link between sulfonylurea drugs and coronary arterial spasm, increasing blood pressure and heart damage. The study suggests that these common diabetes medications may pose an additional risk to diabetic patients already facing cardiovascular problems.
A study published in the journal Diabetes found that a ginseng berry extract completely normalized blood glucose levels, improved insulin sensitivity, lowered cholesterol levels, and decreased weight in diabetic mice. The extract also reduced appetite and increased activity levels in treated mice, leading to significant weight loss.
A multi-center research team found that infliximab prolonged remissions in moderate to severe Crohn's disease patients by twice as long at bi-monthly infusions compared to every eight weeks. The drug also helped patients reduce steroid use and improve quality of life.
Researchers found that losing species initially leads to reduced productivity, highlighting the importance of biodiversity in complex ecosystems. The study used a larger food web system, revealing a more dramatic effect than previously thought.
A recent study confirms that mutations are mainly caused by random errors in cell divisions, contradicting earlier estimates. The study found a low male-female mutation rate, especially in closely related species, but a high alpha in distantly related species, supporting the dominant role of males in driving evolution.
Researchers found that nicotine prolongs the reward period by disabling the system that counterbalances its pleasant effects. This results in an enhanced ability to reinforce smoking behavior, making it challenging for people to quit despite the severe health consequences of tobacco use.
Researchers found that tobacco companies selectively increased youth targeting after the 1998 settlement, exploiting inconsistencies in the ban and government definition of youth magazines. The companies shifted their ads to magazines just under the limit, increasing youth targeting by 14% between 1997 and 2000.
A new study has found that fluticasone steroid nasal spray is more effective in reducing symptoms and inflammation of seasonal allergies compared to a combination of antihistamines. The treatment had minimal side effects, with the researchers preferring it due to its effect on inflammation.
Researchers found that about 25% of genes in fruit flies are evolving rapidly in response to competitive pressures, contradicting the neutral theory. In humans, around 35% of accumulated changes are 'good,' contributing to disease resistance and sexual reproduction, highlighting the ongoing role of natural selection.
The study reveals the structure of edema factor, a toxin that causes fluid accumulation and disrupts immune function. The researchers found that calmodulin binds to edema factor, changing its shape and making it more potent, providing an ideal drug target for developing anti-anthrax drugs.
A study found that only 24% of antibiotics prescribed for women's urinary tract infections are the recommended drug, down from 48% in 1990. The alternative medications are no more effective and cost 11-40 times as much. This trend appears to result from non-clinical forces such as pharmaceutical promotions and sub-specialty culture.
Scientists challenge textbook example of natural selection eliminating variation from closely linked genes; Chromosome 4 has multiple regions with varying levels of recombination. High levels of genetic diversity are found on this previously thought 'non-recombining' chromosome.
A study by the University of Chicago found that saw palmetto can improve urinary symptoms in men with enlarged prostates. After six months, men who received saw palmetto had a significant reduction in their urinary symptom score, while those on placebo showed only half the improvement.
Researchers found intranasal corticosteroids more effective than antihistamines for seasonal allergies, especially in patients with severe disease. The study suggests revising guidelines to recommend regular use of steroids for severe cases and as-needed use for mild cases.
Researchers develop a microsurgical technique to manipulate signaling proteins in developing mouse brains, revealing a previously unknown molecular mechanism involved in forming the cerebral cortex. The study shows that this protein directs the development of cortical areas, including vision, touch, and memory.
A study reformulates a common anti-depressive medication of the nineteenth century, revealing that it would have delivered a daily dose of mercury exceeding current safety standards. Mercury poisoning may have explained Lincoln's neurological symptoms, including insomnia and rage attacks, but also contributed to his famous composure.
A study published by researchers at the University of Chicago Medical Center found that prenatal exposure to methamphetamine increases the risk of brain disorders, such as Parkinson's disease, in male offspring who later take the drug themselves. The toxic effects of methamphetamine can hasten the onset of these conditions.
The study recommends that physicians specifically ask patients about herbal medication use before surgery, as many patients fail to disclose their use. Herbal medications can affect heart rate, blood clotting, and immune function, making it essential for patients to stop taking them before surgery.
Researchers identified complete set of pollen coat proteins, revealing genetic clues to plant mating and self-recognition. The study found rapid divergence of mating genes across species boundaries, shedding light on evolutionary processes.
Researchers found that triclosan is effective against malaria and toxoplasmosis parasites at low concentrations, without harming host cells. The study suggests combining triclosan with other inhibitors to disrupt fatty acid synthesis and prevent resistant microbes.
A team of scientists has successfully completed the sequencing of the Arabidopsis thaliana genome, paving the way for accelerated research in plant biology. The comprehensive analysis provides valuable insights into gene annotation, functional categories, chromosomal architecture, and transposable elements.
The Kantrowitz CardioVad System is a new category of cardiac assist device that boosts the patient's own heart while preserving independence. By taking over up to 50% of the heart's function, patients can release themselves for short periods without compromising their condition.
Researchers found that sleeping songbirds' neurons fire patterns identical to song production, rehearsing the neuronal activity patterns of song generation. This suggests that sleep helps birds learn songs by replaying and strengthening the pattern during undisturbed sleep.
A20 is a critical regulator of inflammation in multiple tissues, protecting against damage by inhibiting TNF activation. The discovery suggests new ways to block inflammation and may lead to novel forms of therapy for conditions like ulcerative colitis and septic shock.
Researchers at the University of Chicago found that prions enable yeast to acquire multiple genetic changes simultaneously, leading to novel characteristics and growth properties. This discovery has broad implications for understanding evolutionary processes and how organisms respond to environmental fluctuations.
Scientists have identified a major susceptibility gene for type 2 diabetes in Mexican Americans, also affecting two European populations. The discovery provides new approaches to prevention, diagnosis and treatment of the disease.
Researchers discovered that nicotine uses a mechanism responsible for learning and memory to enhance neural connections and induce an enduring memory trace. This finding suggests new targets for drugs designed to block nicotine craving.
In a large-scale study, researchers found that doctors frequently miss opportunities to address patients' emotional and social concerns. Patients offered clues roughly half the time, with primary care physicians more likely to ignore these cues than surgeons. Positive responses from doctors can significantly lengthen visits.
Researchers found two stages of age-related deterioration of sleep quality: the first between young adulthood (16-25) and mid-life (35-50), and the second after age 50. Changes in sleep quality were mirrored by changes in hormone secretion, particularly growth hormone, which declined significantly with age.
A team of neuroscientists, led by University of Chicago neurologist John Milton, partnered with LPGA professionals to investigate how the brain manages complex physical tasks. They used functional MRI to study how professional golfers prepare to swing a club and how their brains acquire new skills.
Patients with dementia often receive inadequate medical care due to a lack of data on the safety and efficacy of treatments. Guidelines need to consider a patient's ability to comprehend, remember, and follow directions, as well as their caregiver's capacity to listen and act.
The Immune Tolerance Network will fund a multicenter clinical trial of the Edmonton Protocol, aiming to assess its effectiveness and long-term risks in treating type 1 diabetes. The trial will involve up to 32 new transplants at eight clinical centers across North America and Europe.
Researchers demonstrate that different concentrations of transcription factor PU.1 control blood cell progenitor development into B lymphocytes or macrophages, two distinct types of white blood cells. High levels of PU.1 block B cell development and promote macrophage formation.
Researchers found that brief daily awakenings reduce ventilation duration, cut ICU stays by one-third, and lower healthcare costs. Patients who had daily sedative breaks recovered much more quickly, with reduced need for diagnostic tests related to mental status.