How to crowdsource the world for emergency medicine
2015-04-02
WASHINGTON --Two new studies, published online Tuesday in Annals of Emergency Medicine, illustrate the power of social media and the Internet to promote scholarly dialogue around the world and the importance of establishing criteria for what constitutes high-quality blogs and podcasts ("Global Emergency Medicine Journal Club: A Social Media Discussion About the ADJUST-PE Trial" and "Emergency Medicine and Critical Care Blogs and Podcasts: Establishing an International Consensus on Quality").
"Our Global Emergency Medicine Journal Club creates a virtual space to allow ...
Circulation of highly pathogenic avian flu in North American birds
2015-04-02
Highly pathogenic avian influenza (HPAI) H5 viruses of Eurasian origin continue to circulate and evolve in North American wild birds.
The U.S. Geological Survey and U.S. Department of Agriculture published the genetic analysis of a mixed-origin HPAI H5N1 avian flu virus in the journal Genome Announcements today. This novel virus was discovered in a green-winged teal in Washington State that was sampled at the end of 2014. It is a mixed-origin virus containing genes from the Eurasian HPAI H5N8 and genes from North American low pathogenic avian influenza from wild birds. ...
Black holes don't erase information, scientists say
2015-04-02
BUFFALO, N.Y. - Shred a document, and you can piece it back together. Burn a book, and you could theoretically do the same. But send information into a black hole, and it's lost forever.
That's what some physicists have argued for years: That black holes are the ultimate vaults, entities that suck in information and then evaporate without leaving behind any clues as to what they once contained.
But new research shows that this perspective may not be correct.
"According to our work, information isn't lost once it enters a black hole," says Dejan Stojkovic, PhD, associate ...
Potential chemoresistance after consuming fatty acid in fish, fish oil
2015-04-02
Researchers found that consuming the fish herring and mackerel, as well as three kinds of fish oils, raised blood levels of the fatty acid 16:4(n-3), which experiments in mice suggest may induce resistance to chemotherapy used to treat cancer, according to a study published online by JAMA Oncology.
Patients with cancer often adopt lifestyle changes and those changes often include the use of supplements. But there is growing concern about the use of supplements while taking anticancer drugs and the possible effect on treatment outcomes, according to the study background.
Emile ...
One test can predict which kids will become nearsighted
2015-04-02
COLUMBUS, Ohio - A study of 4,500 U.S. children over 20 years has identified a single test that can predict which kids will become nearsighted by the eighth grade: a measure of their current refractive error.
The refractive error, or eyeglasses prescription, results from mismatches in the size and optical power of the eye that lead to blurry vision.
The study also counters the notion that near work such as frequent reading or sitting too close to the television can bring on myopia, or nearsightedness.
"Near work has been thought to be a cause of myopia, or at least ...
Hubble finds ghosts of quasars past
2015-04-02
The NASA/ESA Hubble Space Telescope has imaged a set of enigmatic quasar ghosts -- ethereal green objects which mark the graves of these objects that flickered to life and then faded. The eight unusual looped structures orbit their host galaxies and glow in a bright and eerie goblin-green hue. They offer new insights into the turbulent pasts of these galaxies.
The ethereal wisps in these images were illuminated, perhaps briefly, by a blast of radiation from a quasar -- a very luminous and compact region that surrounds a supermassive black hole at the centre of a galaxy. ...
Statistical analysis reveals Mexican drug war increased homicide rates
2015-04-02
A new statistical analysis suggests that, in the short term, the Mexican government's war against drugs increased the average murder rate in regions subjected to military-style interventions.
The study--"Did the Military Interventions in the Mexican Drug War Increase Violence?"--was conducted by Valeria Espinosa, a quantitative analyst at Google and a 2014 doctoral graduate of Harvard University's statistics department, and Donald B. Rubin, Harvard University John L. Loeb Professor of Statistics.
The paper is published on the website of The American Statistician, a ...
Beta secretase inhibitors to treat Alzheimer's disease
2015-04-02
Philadelphia, PA, April 2, 2015 - With each new amyloid-targeting treatment for Alzheimer's disease that has been developed, there has been a corresponding concern. For example, antibodies targeting amyloid-β peptide (Aβ) produce inflammation in the brain in some patients. Gamma secretase inhibitors tend to produce adverse effects by interacting with Notch, an important pathway for cellular signaling.
Beta secretase 1 (BACE1) inhibitors are a new and promising target for Alzheimer's disease. Inhibiting BACE1 will limit the production of Aβ which, in turn, ...
Deaths from cardiovascular disease increase globally while mortality rates decrease
2015-04-02
SEATTLE - As the global population pushes past 7 billion and more people reach old age, the number of deaths from cardiovascular diseases is on the rise. Cardiovascular diseases, the leading cause of premature death in the world, include heart attacks, strokes, and other circulatory diseases.
At the same time, efforts to prevent and treat cardiovascular diseases appear to be working as the rise in deaths is slower than the overall growth of the population.
Globally, the number of deaths due to cardiovascular diseases increased by 41% between 1990 and 2013, climbing ...
NTU finds new treatment options for colon cancer
2015-04-02
Scientists from Nanyang Technological University (NTU Singapore) and Sweden's Karolinska Institutet, one of Europe's largest and most prestigious medical universities, have discovered that an existing chemotherapy drug used to treat leukaemia could prevent and control the growth of colorectal tumours.
Colorectal cancer commonly referred to as colon cancer is one of the three most common cancers worldwide and the most common in Singapore. Almost 95 per cent of colorectal cancers are from malignant tumours.
The research team found that Imatinib, an enzyme blocker widely ...
Bridging the gap between biodiversity data and policy reporting needs
2015-04-02
Reporting under policy instruments to inform on the trends in biodiversity requires information from a range of different elements of biodiversity, from genetically viable populations to the structure of ecosystems. A new research looks into the Essential Biodiversity Variables as an analytic framework to identify ways in which gaps between biodiversity data and policy reporting needs could be bridged. The study was published in the Journal of Applied Ecology.
The Essential Biodiversity Variables (EBVs, Pereira et al. 2013) which were previously developed by ecology experts ...
High-fat dairy products linked to reduced type 2 diabetes risk
2015-04-02
The findings, which have been published in the American Journal of Clinical Nutrition, are in line with previous studies of eating habits that indicated a link between high consumption of dairy products and a reduced risk of type 2 diabetes.
However, the new study indicates that it is high-fat dairy products specifically that are associated with reduced risk.
"Those who ate the most high-fat dairy products had a 23 per cent lower risk of developing type 2 diabetes than those who ate the least. High meat consumption was linked to an increased risk of type 2 diabetes ...
Body clock genes could hold key to recurrent miscarriages
2015-04-02
Researchers at the University of Warwick and UHCW have discovered how body clock genes could affect women's ability to have children.
The study, by medics at Warwick Medical School and University Hospitals Coventry and Warwickshire (UHCW) NHS Trust, pinpoints how body clock genes are temporarily switched off in the lining of the womb to allow an embryo to implant. Timing of this event is critical for pregnancy.
The researchers examined endometrial cells from womb linings of healthy women, and also biopsies from women who had sadly suffered from recurrent pregnancy ...
Eating eggs reduces risk of type 2 diabetes
2015-04-02
Egg consumption may reduce the risk of type 2 diabetes, according to new research from the University of Eastern Finland. The findings were published in American Journal of Clinical Nutrition.
Type 2 diabetes is becoming increasingly widespread throughout the world. Research has shown that lifestyle habits, such as exercise and nutrition, play a crucial role in the development of the disease. In some studies, high-cholesterol diets have been associated with disturbances in glucose metabolism and risk of type 2 diabetes. In contrast, in some experimental studies, the consumption ...
Dying patients' choices not always aligned to caregivers'
2015-04-02
An illuminating study compares the willingness of stage IV cancer patients, and their caregivers; to pay to extend their lives by one year against that of other end-of-life improvements. The research, led by members of the Lien Centre for Palliative Care (LCPC) and collaborators from the National Cancer Centre Singapore, was recently published in the journal, Palliative Medicine.
Patients with advanced cancer or other life limiting illnesses often have to consider how much money they are willing to spend on high cost treatments that result in only moderate improvements ...
Critical windows to turn away junk food craving
2015-04-02
University of Adelaide researchers have shown there are two critical windows during the developmental pathway to adulthood when exposure to junk food is most harmful, particularly for female offspring.
This work leads on from earlier findings which showed that mothers who eat junk food while pregnant are programming their babies to be addicted to a high fat, high sugar diet by the time they are weaned.
Their latest laboratory studies reveal there may be a chance to turn around this junk food addiction in two critical windows--equating to late pregnancy and in adolescence ...
Services users and their needs to be at the center of health-care services
2015-04-02
The use of technology in daily life is getting easier all the time as people accumulate knowledge and skills in information and communications technology. However, the most important thing in developing health care services, for example, is to take into account people's day to day lives and their subjective experience of the utility of using services. For example, people's previous bad experience of using a service is reflected for a long time in their use of the service in the future, and thus the dissemination of new service models is a lot slower than might be imagined. ...
Depression and insomnia are strongest risk factors for frequent nightmares
2015-04-02
DARIEN, IL - A new study suggests that symptoms of depression and insomnia are the strongest predictors of having frequent nightmares.
Results show that 3.9 percent of participants reported having frequent nightmares during the previous 30 days, including 4.8 percent of women and 2.9 percent of men. Frequent nightmares were reported by 28.4 percent of participants with severe depressive symptoms and 17.1 percent of those with frequent insomnia. Further analysis that adjusted for potential confounders found that the strongest independent risk factors for nightmares were ...
Liver injury in NASH leads to a leaky gut
2015-04-02
Bethesda, MD (April 2, 2015) -- Non-alcoholic steatohepatitis (NASH), the more severe form of non-alcoholic fatty liver disease (NAFLD) that can progress to liver fibrosis and cirrhosis, is associated with leakiness of the intestinal wall, which in turn may worsen liver disease, according to research1 published in Cellular and Molecular Gastroenterology and Hepatology, the new basic science journal of the American Gastroenterological Association.
"Our study strengthens the clinical association between intestinal permeability and NASH, although we were unable to identify ...
Accurate blood pressure measurement fundamental to early diagnosis in pregnancy
2015-04-02
Accurate blood pressure measurement (BP) is fundamental to the early diagnosis of hypertensive disorders in pregnancy, says a review published 1 April, 2015, in The Obstetrician & Gynaecologist (TOG).
The diagnosis and management of hypertensive disorders in pregnancy, as well as obstetric haemorrhage, sepsis and safe abortion, are guided in part by the measurement of BP. These conditions contribute to more than half of all maternal deaths globally, so the accuracy of BP measurement is vital, the review concludes.
The review explains that BP monitoring is the most ...
LSU professor's neurological research featured in the Journal of Neuroscience
2015-04-02
BATON ROUGE - LSU Psychology Professor Megan H. Papesh was part of a research team whose study appeared in the online-first edition of the Journal of Neuroscience on Wednesday, April 1.
The research, jointly conducted by scientists from the Barrow Neurological Institute and Arizona State University, involves recording single-neuron activity in the brains of epilepsy patients who require electrodes implanted to monitor seizures. With the electrodes in place, processes such as perception and memory can be studied at the level of individual neurons.
The research focused ...
Ocean-scale dataset allows broad view of human influence on Pacific coral reef ecosystems
2015-04-02
As man-made threats to coral reefs mount and interest in conserving reef ecosystems grows, scientists have turned to studying extremely remote and uninhabited reefs in an effort to understand what coral reefs would be like in the absence of humans. A number of islands and atolls in the Pacific Ocean remain virtually untouched by human influence, situated hundreds of kilometers from the nearest human populations.
A study published today by scientists at the University of Hawai'i at Mānoa (UHM) School of Ocean and Earth Science and Technology (SOEST), the National ...
Plowing prairies for grains: Biofuel crops replace grasslands nationwide
2015-04-02
MADISON, Wis. - Clearing grasslands to make way for biofuels may seem counterproductive, but University of Wisconsin-Madison researchers show in a study today (April 2, 2015) that crops, including the corn and soy commonly used for biofuels, expanded onto 7 million acres of new land in the U.S. over a recent four-year period, replacing millions of acres of grasslands.
The study -- from UW-Madison graduate student Tyler Lark, geography Professor Holly Gibbs, and postdoctoral researcher Meghan Salmon -- is published in the journal Environmental Research Letters and addresses ...
Rapid increase in neonicotinoid insecticides driven by seed treatments
2015-04-02
Use of a class of insecticides, called neonicotinoids, increased dramatically in the mid-2000s and was driven almost entirely by the use of corn and soybean seeds treated with the pesticides, according to researchers at Penn State.
"Previous studies suggested that the percentage of corn acres treated with insecticides decreased during the 2000s, but once we took seed treatments into account we found the opposite pattern," said Margaret Douglas, graduate student in entomology. "Our results show that application of neonicotinoids to seed of corn and soybeans has driven ...
Nanoparticles may exploit tumor weaknesses to selectively attack cancers
2015-04-02
Delving into the world of the extremely small, researchers are exploring how biodegradable nanoparticles can precisely deliver anticancer drugs to attack neuroblastoma, an often-deadly children's cancer.
By bringing together experts in pediatric oncology with experts in nanotechnology, researchers at The Children's Hospital of Philadelphia aim to thread the needle of delivering effective doses of cancer-killing agents while avoiding toxicity in healthy tissues. The team's new research shows that this approach inhibits tumor growth and markedly prolongs survival in animal ...
[1] ... [2606]
[2607]
[2608]
[2609]
[2610]
[2611]
[2612]
[2613]
2614
[2615]
[2616]
[2617]
[2618]
[2619]
[2620]
[2621]
[2622]
... [8379]
Press-News.org - Free Press Release Distribution service.