A human trial of a DNA vaccine designed to prevent H5N1 avian influenza infection began in December 2006. The vaccine instructs human cells to make proteins that act as a vaccine against the virus, providing broad immune responses without infectious material.
A new study found that a large number of patients who receive implantable cardioverter defibrillators (ICDs) do not benefit from the device, while a simple heart-rhythm test can predict which patients will get life-saving benefit. The study suggests that using this test could spare millions of dollars in costs.
JDRF is providing up to $2 million in funding for the 'Protégé' trial of teplizumab, a proprietary MacroGenics compound that has shown promise in slowing type 1 diabetes progression. The trial aims to assess teplizumab's capacity to reduce insulin requirements and maintain normal blood sugar levels.
Researchers found that measuring alcohol consumption and depression differently, as well as examining gender, are key issues when interpreting findings on the relationship between alcohol and depression. The study showed stronger associations between depression and heavy episodic drinking for women than men.
Teens with cancer face poor survival rates due to limited clinical trial participation, lack of awareness about their risk, and delayed diagnoses. The 15-29 age group has seen no improvement in survival rates over the past 25 years.
A new study by the University of Wisconsin-Madison found that breast cancer patients who pray in online support groups experience lower levels of negative emotions and higher self-efficacy. The study analyzed message transcripts from 97 patients and discovered a positive correlation between prayer and improved mental well-being.
Class-action lawsuits can significantly slow or halt science's ability to establish links between neurological illness and environmental factors. The authors suggest policy changes to shield scientists and their research, including enhancing privacy protections for patient data.
A new study finds that reduced frontal-lobe activity and impulsivity are linked to an increased risk of developing alcoholism. The study, published in Alcoholism: Clinical & Experimental Research, suggests that individuals with high impulsivity may be more vulnerable to excessive drinking and other disinhibitory disorders.
In semi-arid environments, trees have evolved to access moisture from bedrock fractures and quickly recover when heavy rains occur. Understanding these surface-atmosphere interactions is crucial for predicting water supplies and managing scarce resources.
A new model could give an additional 10% of waiting list patients access to organs for transplant while reducing discarded kidneys from 11-15% to 3%. The system aims to achieve a better balance between efficiency and equity in kidney transplantation.
A recent study found that children who watch more TV, eat fewer family meals, and live in less safe neighborhoods are more likely to become overweight from kindergarten on. Additionally, researchers discovered that under-reporting calorie intake can lead to inaccurate dietary patterns and weight issues among older adults.
Researchers at the University of Vermont have clarified the cellular process responsible for signaling regional blood flow changes in the brain. Astrocytes play a crucial role in communicating with blood vessels through potassium ions, leading to rapid dilation and increased local blood flow.
Research has identified five hotspots of high mercury contamination in fish and birds across eastern North America, posing a risk to human health and wildlife. The study highlights the need for stricter regulations on mercury emissions from coal-fired power stations and municipal waste incinerators to mitigate this environmental threat.
A study by Teachers College, Columbia University found that telephone outreach significantly increased the incidence of colorectal cancer screening among an urban minority population. The intervention resulted in a 27% increase in screening rates compared to those who received printed materials.
A recent study published in the Journal of the National Cancer Institute found that men with only daughters had a higher risk of prostate cancer than those with at least one son. The research suggests that genes on the Y chromosome may be involved in prostate cancer risk, and that lack of sons increases this risk by 40%.
Researchers can now observe live cells for extended periods using advanced microscopy techniques, allowing them to study complex cellular processes and identify potential avenues for disease treatment. The new protocols provide a comprehensive toolkit for scientists to visualize and analyze cell movement, growth, and function.
A study from Carnegie Mellon, Stanford, and MIT used fMRI to determine brain activity when considering product purchases and predicting buying behavior. The results suggest that consumers trade off immediate pleasure for delayed pain of spending money, explaining overspending on credit cards.
Researchers at Johns Hopkins University have developed a hybrid molecule that combines a sugar with a short-chain fatty acid to kill cancer cells in lab tests. The molecule triggers cellular suicide and orchestrates the expression of genes responsible for halting uncontrolled growth.
A study by Cornell and US Military Academy researchers found that waste and drinking water treatments, including UV radiation and bacterial digesters, can eliminate avian flu viruses. H5N2, a low-pathogenic virus similar to deadly H5N1, was inactivated at levels within industry standards.
Research at Yale University reveals estrogen regulates brain energy metabolism similarly to leptin, leading to a promising avenue for addressing obesity in those resistant to leptin. The study's findings suggest that estrogen may suppress appetite using independent pathways from leptin, making it a potential target for weight management.
A University of Georgia study finds that rapid detection and aggressive education can dramatically reduce the size of emerging infectious disease outbreaks. The model developed by John Drake takes into account factors like information speed and public dissemination to predict outbreak sizes.
Uric acid may promote early intervention against chemical damage to neurons following spinal cord injury or stroke. The compound can stimulate astroglial cells to produce transporter proteins that carry harmful compounds away from damaged neurons.
A new study finds significant ethnic differences in treatment use for alcohol problems among whites, blacks, and Hispanics. The majority of services are provided in settings like hospitals and medical clinics, but financial and logistical barriers hinder access for minorities.
A study found that individuals with a G allele of the mu-opioid receptor gene crave alcohol more than those with the A allele. This genetic marker may be related to how much a person craves alcohol in high-risk situations, potentially affecting treatment options.
A team of physicists and neuroscientists has discovered a bottleneck in the brain's blood supply, specifically in penetrating arterioles, which makes it vulnerable to strokes. This finding may explain the origin of gray matter damage detected in brain scans, especially among the elderly.
Research from Northwestern University found that primary care physicians rarely address sleep problems in elderly patients, with 70% experiencing at least one sleep complaint. Treating sleep disorders can improve quality of life and overall health, with options including meditation, exercise, and bright light therapy.
A study found that herpes simplex virus, which causes cold sores, may be more active in the brains of people with the ApoE-4 gene variant, a known risk factor for Alzheimer's disease. The research suggests that ApoE-4 may alter the balance between the HSV life cycle forms, potentially increasing the risk of Alzheimer's.
Neuroscientists at Duke University mapped neural activations for focused attention, shedding light on brain regions and timing involved. The study may aid clinicians addressing attention-related problems in conditions like schizophrenia and ADHD.
A new study found that 61% of chronic hepatitis C patients treated with Interferon developed asymptomatic retinopathy, including retinal hemorrhage and cotton-wool spots. The condition was associated with increased blood velocity and endothelial dysfunction, highlighting the importance of monitoring patients during treatment.
A genetic mutation in a single amino acid change in the beta1-adrenergic receptor affects its response to certain beta blockers. The Arg389 variant of the receptor is more sensitive to carvedilol, leading to reduced cAMP signaling and potentially poorer treatment outcomes for black patients.
Competitive surfers experience a relatively low risk of injury, but more than double the risk in large waves or over hard bottoms. Common injuries include sprains and strains to the knees.
Recent research suggests that regular statin use is not linked to lower colorectal cancer risk, while folate intake does not appear to impact breast cancer risk. However, monitoring of thyroid function may be necessary for patients taking the medication sunitinib, which can cause fatigue and hypothyroidism.
A study found that four out of five hospital performance measures for heart failure were not linked to improved patient outcomes. The measures, developed by the American College of Cardiology and American Heart Association, include discharge instructions and evaluation of left ventricular systolic function.
Researchers at University of Illinois Chicago discovered that receptor numbers on nerve cells are controlled by brain's level of glutamate, a previously ignored neurotransmitter. This finding has implications for understanding perception, learning, and behavior, including homosexuality.
Researchers have developed a promising radiotracer, FACBC, to improve prostate cancer diagnosis and staging. The tracer shows high accumulation in cancer cells and potential for overcoming traditional PET tracers' drawbacks.
A new study estimates the patient time costs associated with cancer care, finding that hospitalizations were the largest component of patient time costs in both initial year after diagnosis and last year of life. The estimated net patient time costs ranged from $271 for melanoma to $7,799 for gastric cancer.
Engineers at UC San Diego synthesized p-type zinc oxide (ZnO) nanoscale cylinders, which transport positive charges and could pave the way for an inexpensive new kind of light emitting diode (LED). The development of these semiconducting materials may lead to more efficient LEDs and a wider range of nanodevices.
Researchers studied the effects of the Mt. Pinatubo eruption on Earth's climate, finding that natural aerosols have a cooling effect and that coupled climate models should be tested for their response times. Additionally, scientists investigated the link between Antarctic and Indian Ocean temperatures, suggesting Subantarctic Mode Wate...
A high-fat diet induces insulin resistance in mice, leading to increased beta-cell mass as the body attempts to compensate. Glucose levels are found to be a crucial trigger for this process, with GCK and IRS-2 playing key roles in the mechanism.
Researchers found that existing quality-of-care indicators for heart failure patients may not accurately predict mortality rates. A new beta-blocker measure was associated with improved patient outcomes and could potentially save an additional 19,000 lives per year.
Studies found that heparan sulfate in the liver plays a crucial role in clearing triglycerides and cholesterol from the blood. The discovery could lead to new treatments for high blood-fat levels and related complications such as arthrosclerosis.
A recent study analyzes the genome of Cytophaga hutchinsonii, a bacterium that efficiently breaks down cellulose. The research suggests a possible connection between motility and cellulose digestion, which could lead to more efficient conversion of cellulose into ethanol for bioenergy production.
A genetic 'switch' drives the formation of a poorly understood type of muscle in mice. These mice exhibit increased endurance and can sustain longer periods of physical activity.
Researchers found that African-American patients had a lower risk of hepatic steatosis compared to Caucasian patients, despite similar prevalence rates. Insulin resistance was identified as an important factor in predicting treatment response.
Researchers at UC Berkeley discovered a synthetic peptide that prevents the genital warts virus from infecting cells. The peptide targets the viral E2 protein, which binds to chromosomal proteins, and blocks its action, potentially stopping the spread of the virus and preventing cancer.
During fasting, brain cells responsible for stimulating appetite make sure you stay hungry. The researchers revealed a link between active thyroid hormone in the brain and increases in an 'uncoupling' protein (UCP2) that boosts power-generating mitochondria, allowing the brain's hunger center to remain active.
A University of Virginia Health System researcher found that just four motivational interviewing sessions doubled the odds of women at risk for pregnancy reducing their binge drinking. The technique, called MI, has proven effective in scaling back risky behaviors and promoting contraception use.
A new report offers specific guidance to help anticipate and lessen homesickness in children. Research shows that 90% of kids feel some level of homesickness, but prevention is key. The report provides tips for parents and doctors to prepare children before separation.
Current guidelines only target US-born residents for TB testing; new changes aim to address the burden of latent TB infection in foreign-born populations, particularly those from high-risk countries. Eliminating TB will require a comprehensive strategy involving varying approaches for immigrant populations.
A recent double-blind study found that long-acting octreotide did not improve outcomes for patients with liver cancer compared to a placebo. The study enrolled 119 patients and followed them for over 30 months, but showed no significant difference in survival rates between the two groups.
A set of guidelines has been developed to predict the risk of bacterial meningitis in children with cerebrospinal fluid pleocytosis. The Bacterial Meningitis Score correctly identified very low-risk patients as having a near-zero risk of bacterial meningitis, allowing for more targeted treatment.
Researchers found a significant increase in soft tissue sarcoma cases among hereditary retinoblastoma survivors, with leiomyosarcoma being the most common subtype. Regular medical surveillance is crucial for these patients to detect potential cancers early.
A phase 3 trial found that pexelizumab did not significantly reduce the risk of death from STEMI when used with primary PCI. The study, which included over 5,700 patients, suggests that new treatments targeting inflammation may be needed for this patient population.
Researchers at UD University discovered a new class of polymers that can be transformed into ultra-thin films with potential applications in coatings, optics, and electronics. The discovery was made possible by a novel polymerization technique developed by the team, which eliminates the need for solvents.
A genetic mutation in the beta1-adrenergic receptor alters the response to certain heart failure drugs, highlighting the potential for personalized medicine. The study found that a single amino acid change in the receptor can affect how well patients respond to beta blockers, with some variants showing increased sensitivity to carvedilol.
Researchers have developed an automated method to identify osteoporosis sufferers in routine dental x-rays, which could help diagnose the disease earlier. The software measures jaw cortex widths, alerting dentists to potential cases, with a success rate comparable to specialist consultants.
Researchers used satellite imagery meshed with video-game technology to trace the movements of ancient people in present-day Costa Rica, who reused single-file paths for over 1,000 years. The project revealed that villagers viewed footpaths as 'living entities' and reoccupied them after devastating eruptions.
A study published in the American Journal of Respiratory and Critical Care Medicine found that young adults with chronic cough and phlegm are at a fourfold increased risk of developing COPD. The presence of these symptoms is an early marker of airflow obstruction.
The supplement examines the role of 18F-FDG PET/CT imaging in cancer diagnosis, treatment planning, and monitoring. It provides guidelines and algorithms for the use of PET/CT in evaluating and managing head and neck cancer and thyroid cancer.
A new study by Yale University researchers found that race consciousness is pervasive among physicians of African descent, leading to negative experiences and 'racial fatigue.' The study highlights the need to address racial disparities in the healthcare workplace to increase diversity and retain minority physicians.