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| Snails And Humans Use Same Genes To Tell Right From Left Posted: 22 Dec 2008 11:00 AM PST The genes that in vertebrates establish the right and left sides of the body were thought to be of fairly recent origin, since fruit flies and nematodes don't have them. A new study shows that snails do use the same genes as vertebrates, suggesting that these genes arose more than 500 million years ago in the first bilaterally symmetric organisms.  |
| How Asbestos Fibers Trigger Cancer In Human Cells Posted: 22 Dec 2008 11:00 AM PST Scientists are now studying the molecular underpinnings of cancer by probing individual bonds between an asbestos fiber and human cells. Though any clinical application is years away, the researchers hope their findings could aid in drug development efforts targeting illnesses caused by excessive exposure to asbestos, including the deadly cancer called mesothelioma.  |
| Posted: 22 Dec 2008 11:00 AM PST Scientists have found that a cheap and nontoxic sunburn and diaper rash preventative can be made to produce brilliant light best suited to the human eye. Physicists have discovered that adding sulfur to ultra-fine powders of commonplace zinc oxide at about 1,000 degrees centigrade allows the preparation to convert invisible ultraviolet light into a remarkably bright and natural form of white light.  |
| Medication For Depression Can Also Fight Cancer Drug Resistance Posted: 22 Dec 2008 11:00 AM PST Prozac is regularly prescribed to ease the emotional pain of patients who are being treated for cancer. But can this common anti-depressant help to fight cancer itself?  |
| Watching Water From Space Could Aid Disease Prevention In China Posted: 22 Dec 2008 11:00 AM PST Scientists are looking to outer space for help in their attempt to prevent new outbreaks of the tropical disease schistosomiasis in southern China. Once the Three Gorges Dam is fully operational, researchers plan to use satellite data from space to determine whether changing water conditions in Poyang Lake, China's largest freshwater lake, create favorable conditions for the snails associated with the chronic disease that can damage internal organs and impair growth and cognitive development in children.  |
| Shame On Us: Shaming Some Kids Makes Them More Aggressive Posted: 22 Dec 2008 11:00 AM PST Aren't you ashamed of yourself? All these years, you've been trying to build up your child's self-esteem, and now a growing body of research suggests you may be making a big mistake. A study published in Child Development finds that early adolescents with high self-esteem are more likely to react aggressively when they feel ashamed than their peers with lower levels of self-esteem.  |
| Posted: 22 Dec 2008 08:00 AM PST Reducing the activity of a gene called FKBP12 in the brains of mice affected neuron-to-neuron communication (synapse) and increased both fearful memory and obsessive behavior, indicating the gene could provide a target for drugs to treat diseases such as autism spectrum disorder, obsessive-compulsive disease and others, according to an article in the journal Neuron.  |
| Drama In The Heart Of The Tarantula Nebula Posted: 22 Dec 2008 08:00 AM PST A new Chandra X-ray Observatory image of the Tarantula Nebula gives scientists a close-up view of the drama of star formation and evolution. The Tarantula, also known as 30 Doradus, is in one of the most active star-forming regions in a galaxy close to the Milky Way. Massive stars in 30 Doradus are producing intense radiation and searing winds of multimillion-degree gas that carve out gigantic super-bubbles in the surrounding gas.  |
| Protein Levels Indicate Risk Of Death In Some Colorectal Cancer Patients Posted: 22 Dec 2008 08:00 AM PST A pair of proteins may help explain why people with surgically removed colorectal cancer and who are overweight, physically inactive and follow a Western-pattern diet may have an increased risk of dying of the disease or other causes, scientists report.  |
| Portable CT Increases Chance Of Stroke Survival And Recovery Posted: 22 Dec 2008 08:00 AM PST New research has found that the availability of a portable eight-slice computed tomography scanner in an emergency room can significantly increase the number of stroke victims who receive a potentially life-saving treatment.  |
| Vulnerability To Post-traumatic Stress Disorder Runs In Families, Study Shows Posted: 22 Dec 2008 08:00 AM PST Researchers have discovered that vulnerability to post-traumatic stress disorder, anxiety and depression run in families.  |
| Breathing Life Into Injured Lungs: World-first Technique Will Expand Lung Donor Organ Pool Posted: 22 Dec 2008 05:00 AM PST For the first time in the world, transplant surgeons in Canada used a new technique to repair an injured donor lung that was unsuitable for transplant, and then successfully transplanted it into a patient. The use of this technique could significantly expand the lung donor organ pool and improve outcomes after transplantation.  |
| Gene Subnetworks Predict Cancer Spread Posted: 22 Dec 2008 05:00 AM PST The metastasis or spread of breast cancer to other tissues in the body can be predicted more accurately by examining subnetworks of gene expression patterns in a patient's tumor than by conventional gene expression microarrays.  |
| Scientists Watch Membrane Fission In Real Time Posted: 22 Dec 2008 05:00 AM PST Researchers have solved one of biology's neatest little tricks: They have discovered how a cell's outer membrane pinches a little pouch from itself to bring molecules outside the cell inside -- without making holes that leak fluid from either side of the membrane.  |
| Generally Safe To Withdraw Anti-seizure Medication In Children With Epilepsy, Study Finds Posted: 22 Dec 2008 05:00 AM PST A new study found that it is generally safe to withdraw anti-seizure medications in children with epilepsy who have achieved seizure-freedom while on the medication. Researchers found that these children were not at high risk of subsequently developing intractable epilepsy.  |
| Waste Peel From Pomegranate Juice Factories Makes Healthy Cattle Feed Posted: 22 Dec 2008 05:00 AM PST Pomegranate peel left over from production of the juice renowned for its potential health benefits can make a nutritious feed supplement for cattle, researchers report in an article in the Journal of Agricultural and Food Chemistry. The peel packs some of the weight-boosting and health-enhancing effects of antibiotics and hormones without the detrimental effects, and researchers say it may yield meat with higher levels of beneficial antioxidants.  |
| Selflessness -- Core Of All Major World Religions -- Has Neuropsychological Connection Posted: 22 Dec 2008 02:00 AM PST All spiritual experiences are based in the brain. That statement is truer than ever before, according to a University of Missouri neuropsychologist. A new study has data to support a neuropsychological model that proposes spiritual experiences associated with selflessness are related to decreased activity in the right parietal lobe of the brain. The study is one of the first to use individuals with traumatic brain injury to determine this connection.  |
| Structured Warm-up Exercises May Prevent Up To Half Of Severe Sports Injuries Posted: 22 Dec 2008 02:00 AM PST A warm-up program that focuses on improving strength, balance, core stability and muscular awareness cuts injury in female footballers by a third and severe injuries by almost a half, according to new research.  |
| HIV Dementia: How Major HIV Strains Affect The Brain Differently Posted: 22 Dec 2008 02:00 AM PST A new study has clarified how two major variants of HIV differ in their ability to cause neurologic complications.  |
| Science's Breakthrough Of The Year: Cellular Reprogramming Posted: 22 Dec 2008 02:00 AM PST In its annual list of the year's top ten scientific breakthroughs, the journal Science has given top honors to research that produced "made-to-order" cell lines by reprogramming cells from ill patients. These cell lines, and the techniques for producing them, offer long-sought tools for understanding -- and hopefully someday curing -- difficult-to-study diseases such as Parkinson's disease and type 1 diabetes.  |
| Oil Spray Reduces Greenhouse Gas Emissions From Pig Finishing Barns Posted: 22 Dec 2008 02:00 AM PST Researchers have known that the animal feeding industry creates a significant amount of greenhouse gas emissions, particularly methane and carbon dioxide. As the industry works to address this concern, scientists have tested various types of oil sprays to measure their effectiveness in reducing these emissions. The results show positive signs in reducing environmental impact.  |
| Childhood Vaccines Cause Financial Burden To Many Health Care Providers Posted: 22 Dec 2008 02:00 AM PST The costs that health care providers are charged and reimbursed for childhood vaccines vary widely, and the high cost of some immunizations is leading to significant financial strain for some physicians, according to a pair of new studies.  |
| First Functional Stem-cell Niche Model Created Posted: 21 Dec 2008 11:00 PM PST Scientists at the Stanford University School of Medicine employing a similar "peeping Tom" tactic to learn more about how stem cells develop have taken a significant step forward by devising a way to recreate the cells' lair -- a microenvironment called a niche -- in an adult animal.  |
| CT Colonography Offers One-stop Screening For Cancer And Osteoporosis Posted: 21 Dec 2008 11:00 PM PST New research reveals that computed tomography colonography, also known as virtual colonoscopy, has the potential to screen for two diseases at once -- colorectal cancer and osteoporosis, both of which commonly affect adults over age 50.  |
| Posted: 21 Dec 2008 11:00 PM PST Neonatal diabetes is a rare form of diabetes that is usually detected within the first six months of life. Approximately 50 percent of cases of neonatal diabetes are caused by mutations in either the KIR6.2 gene or the SUR1 gene. A new article describes the development of a mouse model of neonatal diabetes that the authors believe provides new insight into the human disease.  |
| Nitrogen Emissions In Dairy Pastures Peak In The Springtime Posted: 21 Dec 2008 11:00 PM PST The nitrogen emissions from boreal dairy pastures vary depending on the time of year and ley rotation. The emissions peak in spring, when the nitrates accumulated in the soil over the previous summer and winter leach with the melting snow.  |
| Increasing Physical Activity And Limiting Television May Lead To Reduction In Type 2 Diabetes Posted: 21 Dec 2008 11:00 PM PST Researchers have found that reducing time spent watching television and increasing time spent walking briskly or engaged in vigorous physical activity may reduce the incidence of type 2 diabetes in African-American women.  |
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