A study by Mayo Clinic researchers found that epilepsy surgery is durable and effective, improving quality of life for patients with intractable epilepsy. The procedure removed the focal region of brain disease in 399 consecutive patients, with a 4% risk of complications.
The prevalence of overweight children and adolescents in the US has doubled since 1980, while obesity rates have tripled. In 2003-2004, 17.1% of children were overweight and 32.2% of adults were obese. Significant increases were seen among males, with a rise in extreme obesity among women
A recent study found that patients with minor or subsyndromal depression are five and a half times more likely to be diagnosed with major depression within a year. These less-severe conditions often go undiagnosed and untreated, causing greater functional disability among the elderly population.
Richard Zare, a renowned chemist, has been awarded the Howard Hughes Medical Institute Professorship to develop an innovative undergraduate course on laser technology and its applications. He aims to ignite scientific curiosity in students through hands-on experiences and interdisciplinary approaches.
A one percent reduction in cancer mortality would be worth approximately $500 billion, according to a new study published in the Journal of Political Economy. The study estimates that increased life expectancy is worth more than $1.2 million for each American alive today, adding about $3.2 trillion per year to national wealth.
A majority of Americans (55%) expect the world's natural environment to be in worse shape in 10 years than it is now. Despite party affiliation, 67% of Democrats and 48% of Republicans are pessimistic about environmental health. A bipartisan 86% supports government action to improve the environment during the next year.
Researchers at Thomas Jefferson University discovered a genetic signature that predicts colon cancer, distinguishing between stem cell and non-stem cell activity in colon crypts. This finding could lead to the development of new drugs by replacing lost molecules involved in cancer development.
A study published in the American Physiological Society found that pine nut oil stimulated two well-known appetite-suppressing peptide hormones, CCK and GLP1, increasing their levels by 60% and 25%, respectively. This effect lasted for up to four hours, reducing desire to eat and prospective food intake scores.
Research found harbor seals that were heavier when captured continued to gain weight on high fat and low fat diets, but smaller pups lagged behind. The study suggests changes in prey availability, including herring, may contribute to the declining seal population.
Regular use of antihistamines has been linked to a higher risk of developing low-grade and anaplastic astrocytomas, two types of brain tumors. Conversely, anti-inflammatory medications may help protect against glioblastoma, a more deadly type of tumor.
Research on Western Sandpipers reveals that birds fatten more rapidly as they move further north, with longer stays at refuelling sites resulting in lower fattening rates. This suggests changes in behaviour or physiology may be responsible for the observed differences.
A meta-analysis of 18 epidemiologic studies found a small association between soy intake and reduced breast cancer risk. The risk appeared to be greater in premenopausal than postmenopausal women, but the data have limitations due to inaccurate measurements and potential surrogate effects.
Researchers found a new mechanism for gene evolution, with antifreeze fish using non-coding DNA to create a functional protein. This discovery challenges conventional thinking on gene origins and may provide insights into the emergence of new functions in living organisms.
A study by Wageningen University found that weight and a saddle induce an overall extension of the horse's back, contributing to soft tissue injuries. The researchers hope to generate guidelines for riding techniques and maximum weight limits to prevent such problems.
Researchers at Duke University Medical Center have developed a novel growth factor that significantly improves the ability of human fat-derived stem cells to be transformed into cartilage cells. The growth factor, BMP-6, stimulates the production of key biochemical markers of cartilage cell proliferation, suggesting potential for tissu...
Researchers at Baylor College of Medicine have identified a new gene called DAF-36 that converts cholesterol into the active ligands for the DAF-12 nuclear receptor. These ligands promote C. elegans reproductive capacity and prevent dauer diapause, a long-lived larval phase.
A new approach to controlling swine disease, known as acclimatization, was tested on a farm in Illinois. The study found that pigs exposed to the farm's wild-type virus developed immunity but suffered reproductive issues, casting doubt on its effectiveness.
Researchers found that St. John's wort and Echinacea can alter the metabolic capacity of enzymes that process medications, potentially leading to reduced therapeutic efficacy. This interaction is particularly concerning for commonly used pharmaceuticals like oral contraceptives and antihistamines.
Research identifies three estrogen-related gene variants associated with an increased risk of Parkinson's disease in women. The study found that these genetic variations affect 10-20% of the female population and could be used to predict disease risk using a simple blood test.
A study published in Liver Transplantation found that pediatric liver transplant patients waited significantly longer than in the past, with an average waiting time of over 10 years. The number of pediatric patients on the waitlist increased only slightly, while the mortality rate remained high, particularly among young children.
A new mathematical algorithm designed to improve noise cancellation technologies can reduce unwanted helicopter and cabin noise by 40 decibels or more. The 'feedforward' active-noise control works by generating anti-noise signals that adapt to acoustic coupling, solving a long-standing problem in the field.
The authors outline a vision for a dynamic learning organizational system to ensure quality care at an affordable price. Key elements include professionalism, systems engineering, and information technology to provide universal coverage through a market-based model with government assistance.
Researchers found that ginger causes both apoptosis and autophagic cell death in ovarian cancer cells, potentially circumventing resistance to conventional chemotherapy. The study suggests ginger may be a promising new treatment option for ovarian cancer with minimal side effects.
Research suggests that Vitamin D, along with outdoor activities and diet, may lower breast cancer risk. Studies found significant reductions in breast cancer among individuals exposed to high levels of Vitamin D, particularly during adolescence.
Researchers have found that liver signal STAT3 mediates the effects of brain insulin, which regulates glucose balance and insulin response. This discovery provides a potential therapeutic target for type 2 diabetes, a condition characterized by impaired glucose production in the liver.
A recent study reveals that obese adults tend to inaccurately perceive their weight status, which can lead to poor adherence to public health messages. The findings suggest a link between perception and denial as possible explanations for this phenomenon, highlighting the importance of addressing this issue in obesity research.
Research finds that abdominal fat is a significant contributor to exercise-induced shortness of breath in obese individuals, surpassing the effects of overall weight. The study highlights the importance of targeted weight loss and adapted exercise recommendations for patients with high amounts of abdominal fat.
A meta-analysis of 18 studies found a small association between soy food intake and reduced breast cancer risk, particularly in premenopausal women. However, the data were inconsistent enough that no clear recommendation could be made for using soy supplements to prevent breast cancer.
A new mouse model reveals that moderate alcohol consumption fuels blood vessel growth and encourages cancer tumors, increasing the risk of cancer. The study suggests that blocking VEGF over-production could reduce cancer incidence and provides a potential tool for cancer education and prevention.
The FDA has granted a priority review of REMICADE for the treatment of children with moderately to severely active Crohn's disease. In the REACH trial, nearly 90% of pediatric patients achieved clinical response at week 10 and over half were in clinical remission at one year.
A new study has found significant regional differences in ocean contamination levels among albatrosses, with black-footed albatrosses foraging in the California Current exhibiting higher concentrations of mercury and organochlorine compounds. The findings suggest that these contaminants build up in the tissues of animals high on the fo...
A recent study found that calorie-restricted diets can lower fasting insulin levels, body temperature, and oxidative damage to DNA in humans. After six months on a low-calorie diet, participants showed improvements in heart function compared to those who didn't restrict calories.
Patients with relapsing forms of MS taking Betaseron experienced a sustained 40% reduction in annual relapse rates over 16 years. Long-term treatment showed slower disease progression, with those on therapy reaching EDSS 6.0 after a median time of 13 years.
Researchers discovered a biochemical reaction controlling how the worm feeds, which may help understand feeding disorders. The study suggests that inappropriate behavioral responses to starvation signals could be the cause of feeding disorders in mammals.
A team of scientists has created a simple mathematical model to explain how dogs walk, which could help inform the design of quadruped robots and treatments for hip dysplasia. By comparing computer simulations with real-world observations, they found that dogs' walking patterns can be attributed to a passive stiff-limbed model.
The hare's hind-limb hip-extensor muscles are more exaggerated than the greyhound's, enabling rapid acceleration and direction changes. This muscle difference gives the hare a competitive advantage in races against greyhounds.
The Proceedings of the National Academy of Sciences (PNAS) journal has commemorated the late editor-in-chief Nicholas R. Cozzarelli, who improved the quality and reach of the journal through dynamic initiatives. He also championed open-access publishing, making research papers freely available to researchers and the public.
Researchers discovered capsaicin significantly reduces tumor size and induces apoptosis in human pancreatic cancer cells, with no harm to normal pancreatic tissue. The compound's potential use as a novel agent for prevention and treatment of pancreatic cancer is being explored.
Fat cells surrounding coronary arteries release pro-inflammatory proteins and hormones that regulate inflammation, blood pressure, and insulin activity. These epicardial adipocytes also induce angiogenesis, a process that contributes to the development of atherosclerosis.
A new IOM report emphasizes the significant impact of sleep disorders on public health, citing links to cardiovascular disease, obesity, and diabetes. The National Heart, Lung, and Blood Institute supports research and education initiatives to address these issues.
Researchers have identified a conserved role for the muscarinic acetylcholine pathway in animal starvation responses, suggesting potential insights into eating disorders. The study found that starvation activates the MAPK enzyme in the pharyngeal muscles of C. elegans worms.
Researchers at Medical College of Wisconsin discovered that high levels of endothelial-derived microparticles inhibit growth and migration of endothelial cells in the mitral valve tissue. This finding may help prevent endothelial injury in valvular disease and other forms of heart disease.
Researchers found that former smokers have higher CC10 levels than current smokers, which may help explain the lower risk of lung cancer among quitters. Additionally, first-degree relatives of never-smoking lung cancer patients are at increased risk of cancer and early diagnosis compared to healthy never-smokers.
Research suggests that omega-3 fatty acids in fish oil lower prostaglandin levels by competing with omega-6 fatty acids for the COX enzyme. This reduces inflammation and promotes cardiovascular health. Omega-3s also have less active prostaglandins, contributing to their anti-inflammatory benefits.
Researchers developed a non-invasive method to measure indocyanine green elimination, correlating with traditional liver function tests. The test predicted poor outcomes and may improve liver transplant outcomes by guiding clinical management.
Researchers found that combining a PI3K inhibitor with Herceptin can reverse lack of response in HER2-positive breast cancer patients. The addition of a PI3K inhibitor showed significant benefit in halting tumor growth, especially in tumors lacking PTEN protein.
A new study suggests that gender differences in sleep apnea may be linked to estrogen levels, with pre-menopausal women being less likely to develop the condition. The researchers used rats to investigate the role of serotonin in controlling tongue movement, finding no difference in serotonin-producing neurons between males and females.
A FSU study suggests that Jesus could have walked on ice in the Sea of Galilee due to a rare combination of optimal water and atmospheric conditions. The researchers calculated the odds of such an event occurring as roughly once in 1,000 years.
A large clinical trial of low-dose isotretinoin in early-stage head and neck cancer patients found no reduction in second primary tumors or improved survival. Current smokers had increased rates of second primary tumors and death, highlighting the importance of smoking cessation.
A recent study found that only 57% of older patients with osteoarthritis received adequate care, while medication safety was a major concern. The study's results highlight the importance of targeting safe medication use in this population to improve overall quality of care.
Researchers motivated ants with melon-tuna flavored crumbs to navigate a horizontal barrier, allowing them to crawl under without stopping. Ants visually assessed the barrier height using their antennae when it was made invisible.
Research found that 79% of visible-minority immigrant youth hope to earn a university degree, compared to 57% of Canadian-born non-visible minority students. The study also revealed that parents of visible-minority immigrant students have higher education levels and express more positive hopes for their children's educational attainment.
Researchers at Washington University in St. Louis used a network of interconnected pendulums to demonstrate that introducing disorder can lead to order and synchronization in chaotic systems. The findings have potential applications in understanding neuronal activity and may help explain previously unexplained observations.
Researchers Paolo De Los Rios and Pierre Goloubinoff identified a simple mechanism for molecular chaperones to facilitate protein folding and translocation, resolving a long-standing controversy. Their 'Entropic Pulling' theory combines thermodynamic principles with the laws of physics to explain Hsp70's activity.
Researchers have successfully repaired torn Achilles tendons in rats using engineered mesenchymal stem cells expressing Smad8 and BMP2, promoting tendon regeneration. The study provides a novel approach to treating musculoskeletal injuries and degenerative diseases.
A study by Galina Bogatkevich and colleagues found that the amount of antifibrotic glycoprotein HGF was reduced in African-American scleroderma patients compared to Caucasians. This malfunction may explain the greater severity and worse prognosis for African-Americans with pulmonary fibrosis/scleroderma.
Researchers discovered a gene mutation in zebrafish that leads to impaired fat and cholesterol absorption, causing lethal effects. The study provides valuable insights into the process of lipid digestion and metabolism, potentially leading to treatment for human diseases.
Ants can use landmarks to find their way home, but also have an internal 'path integrator' that constantly reassesses their position. Researchers found that this system needs regular reset via nest entry and food release to maintain accuracy.
A recent study reveals that a single gene, spineless, controls the development of both the fruit fly's antenna and its color vision. The research, led by Claude Desplan and Ian Duncan, uses Drosophila fruit flies to demonstrate how this gene regulates the retina's structure and function.
Researchers discovered that consuming cinnamon improves insulin function, lowers glucose and lipid levels. Cloves also showed similar benefits for people with type 2 diabetes. The studies suggest that these spices may be useful in preventing or mitigating cardiovascular disease and other conditions related to inflammation.
The University of Pittsburgh study found significant improvements in clinical, behavioral, and psychological indicators for patients receiving the chronic care model (CCM) intervention. Patients and providers received diabetes-control education, leading to better blood glucose control, HDL cholesterol, and diabetes knowledge.
Women with lower extremity osteoarthritis are at higher risk of developing mobility difficulties, including lower extremity mobility and daily activities. Greater knee strength can reduce this risk, while obesity is a significant contributor to these limitations.
Researchers found that extending a bee's legs generates stabilizing lift forces, reducing rotational instability and enabling faster flight speeds. By mimicking this design in miniature flying machines, search and rescue missions could potentially benefit from increased speed and agility.
A three-year project led by UNT will investigate voice spam prevention, network attacks, quality of service, and 911 service dependability in Voice over Internet Protocol (VoIP) technology. The research aims to establish solutions before damage is done and provide guidelines for preventing security breaches.
Mild cognitive impairment affects 9% of those 70 to 79 and nearly 18% of those 80 to 89. Education years also impact risk: 25% for up to eight years, 14% for nine to 12 years, and 8.5% for greater than 16 years
Researchers have identified a molecular road map for designing new drugs to treat SARS-infected patients, potentially expanding treatment options beyond just COVID-19. The breakthrough was made by unlocking the three-dimensional structure of the papain-like-protease enzyme, essential for viral replication and infection.
Researchers measured pain in premature infants through brain scans during routine care procedures, finding evidence of processed pain in the higher levels of the brain. The study highlights the need for effective pain management in preterm babies, who experience repeated painful procedures daily.
Researchers found that salmon can thrive on diets with up to 75% canola oil, meeting essential omega-3 fatty acid needs. This shift reduces contaminant accumulation and increases cost-effectiveness in aquaculture.
Researchers found that children ate less while watching TV, except for pre-schoolers who were accustomed to eating during TV viewing. Adolescent dieting may predict obesity and eating disorders, with study showing unhealthy weight-control behaviors among teens linked to later problems.
A meta-analysis of 18 studies suggests that soy food intake is associated with a reduced breast cancer risk, particularly in premenopausal women. However, the study found insufficient evidence to support the use of soy supplements as a breast cancer preventive measure.
Researchers found that prolonged calorie restriction caused a reversal in biomarkers of longevity, metabolic adaptations, and reduced DNA damage. The study also showed significant reductions in fasting insulin levels and core body temperature in intervention groups.
Researchers found that higher vitamin D levels were associated with a significant reduction in total cancer incidence and mortality, as well as specific types of digestive system cancers. Daily supplementation with at least 1500 IU of vitamin D may be required to optimize benefits on cancer risk.
Researchers identified 254 gene sequences in melanomas that may inhibit metastasis and found high retinol levels reduce risk of hepatocellular carcinoma. Grb7 peptide inhibitor targets pancreatic cancer cells, showing promise as a new therapy.