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Friday, February 18, 2011

ScienceDaily Health Headlines -- for Friday, February 18, 2011

ScienceDaily Health Headlines

for Friday, February 18, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.

Warm weather may hurt thinking skills in people with multiple sclerosis (February 18, 2011) -- People with multiple sclerosis may find it harder to learn, remember or process information on warmer days of the year, according to new research. ... > full story

Total knee replacement patients functioning well after 20 years, study finds (February 18, 2011) -- Most patients who undergo total knee replacement are age 60 to 80. More than 90 percent of these individuals experience a dramatic reduction in knee pain and a significant improvement in the ability to perform common activities. However questions have been raised about the decline in physical function over the long term despite the absence of implant-related problems. New research evaluates patient functionality 20 years after knee replacement. ... > full story

Broader psychological impact of 2010 Gulf of Mexico oil spill (February 18, 2011) -- The explosion and fire on a BP-licensed oil platform in the Gulf of Mexico in April 2010 had huge environmental and economic effects, with millions of gallons of oil leaking into the water for more than five months. It also had significant psychological impact on people living in coastal communities, even in those areas that did not have direct oil exposure, according to researchers. ... > full story

Swedish discovery could lead to new stroke therapy (February 18, 2011) -- The opportunities to treat a stroke have long been limited to the hours after an attack. The loss of brain function caused by the stroke has previously been regarded as permanent. Brain researchers in Sweden have now discovered a substance that opens up the possibility of treatment up to two days after a stroke. ... > full story

Checklist cuts lethal ventilator-associated lung infections (February 18, 2011) -- Cases of ventilator-associated pneumonia -- the most lethal and among the most common of all hospital-associated infections -- dropped by more than 70 percent in Michigan hospitals where medical staff used a simple checklist. Such pneumonias kill an estimated 36,000 Americans each year. ... > full story

Chronically ill children are 88% more likely to suffer physical abuse, Swedish researchers find (February 18, 2011) -- Children with chronic health conditions are 88% more likely to suffer physical abuse than healthy children and 154% more likely to suffer a combination of physical abuse and exposure to intimate partner violence. Researchers in Sweden analyzed 2,510 questionnaires completed anonymously by children aged ten, 12 and 15 from 44 schools. Nearly one in four had at least one chronic health condition. 12% of all the children who took part in the survey said they had been physically abused, 7% had witnessed intimate partner violence and 3% had experienced both. But when researchers looked at children with chronic illness, the figures were significantly higher for physical abuse and for physical abuse combined with intimate partner violence. ... > full story

New testing could replace colonoscopies in the future (February 17, 2011) -- Nobody enjoys colonoscopies, including mice. Researchers are excited about the potential of using genetic biomarkers to predict colon cancer caused by inflammation. A new method could eventually lead to a method that might eliminate colonoscopies altogether. ... > full story

Group of enzymes could have a positive impact on health, from cholesterol to osteoporosis (February 17, 2011) -- Recent studies on a group of PCSK enzymes could have a positive impact on health, from cholesterol to osteoporosis. ... > full story

Female topics encourage girls to study science, study finds (February 17, 2011) -- Girls are more interested in studying science if topics are presented in a female friendly way, according to new research. ... > full story

Promising treatment for heroin dependency (February 17, 2011) -- A new treatment using naltrexone implants could lead to a significant reduction in heroin dependency. According to the researchers responsible for a recent Norwegian study, this should have major implications for the treatment options offered to heroin-dependent patients. ... > full story

Neurologists develop software application to help identify subtle epileptic lesions (February 17, 2011) -- Researchers have identified potential benefits of a new computer application that automatically detects subtle brain lesions in MRI scans in patients with epilepsy. ... > full story

Mobile phone use not related to increased brain cancer risk, UK study suggests (February 17, 2011) -- Radio frequency exposure from mobile phone use does not appear to increase the risk of developing brain cancers by any significant amount, a new study suggests. ... > full story

Cigarette smoking increases production of mucus in patients with bronchitis (February 17, 2011) -- Cigarette smoking has been linked with overproduction of mucus associated with chronic bronchitis, according to a new study. The study indicates cigarette smoke suppresses a protein that causes the natural death of mucus-producing cells in the airways of bronchitis patients. ... > full story

Innovative virtual reality exposure therapy shows promise for returning troops (February 17, 2011) -- A new study is one of the first to provide evidence of the effectiveness of exposure therapy with active duty military service members suffering from posttraumatic stress disorder (PTSD). The study shows that virtual reality exposure therapy resulted in significant reductions in PTSD symptoms after an average of seven treatment sessions. Additionally, 62 % of patients reported clinically meaningful, reliable change in PTSD symptoms. ... > full story

Treatment for manic-depressive illness restores brain volume deficits (February 17, 2011) -- Lithium, introduced in the late 1940's, was the first "wonder drug" in psychiatry. It was the first medication treatment for the manic and depressive episodes of bipolar disorder and it remains among one of the most effective treatments for this disorder. In the past 15 years, as molecular mechanisms underlying the treatment of bipolar disorder began to emerge, basic research studies conducted in animals began to identify neuroprotective and perhaps neurotrophic effects of this important medication. ... > full story

Biomarker discovery may lead to reliable blood test for ectopic pregnancy (February 17, 2011) -- A long, urgent search for proteins in the blood of pregnant women that could be used in early diagnosis of ectopic pregnancy has resulted in discovery of biomarkers that seem to be specific enough to begin testing in clinical trials. ... > full story

Children of working moms face more health problems, study suggests (February 17, 2011) -- Children of working mothers are significantly more likely to experience health problems, including asthma and accidents, than children of mothers who don't work outside the home, according to new research. ... > full story

Regrowing hair: Researchers may have accidentally discovered a solution (February 17, 2011) -- Scientists were investigating how stress affects gastrointestinal function may have found a chemical compound that induces hair growth by blocking a stress-related hormone associated with hair loss -- entirely by accident. ... > full story

Key culprit identified in breast cancer metastasis (February 17, 2011) -- New research suggests that regulatory T cells, whose job is to help mediate the body's immune response, produce a protein that appears to hasten and intensify the spread of breast cancer to distant organs and, in doing so, dramatically increase the risk of death. ... > full story

Water softeners not found to improve childhood eczema (February 17, 2011) -- Water softeners provide no additional clinical benefit to usual care in children with eczema, so the use of ion-exchange water softeners for the treatment of moderate to severe eczema in children should not be recommended, experts say. ... > full story

Waking up is hard to do: Scientists identify a gene important for the daily rhythms of the sleep-wake cycle (February 17, 2011) -- Scientists have discovered a new mechanism in the core gears of the circadian clock. They found the loss of a certain gene, dubbed "twenty-four," messes up the rhythm of the common fruit fly's sleep-wake cycle, making it harder for the flies to awaken. The circadian clock drives, among other things, when an organism wakes up and when it sleeps. While the study was done using Drosophila melanogaster, the findings have implications for humans. ... > full story

Researchers reveal first autism candidate gene that demonstrates sensitivity to sex hormones (February 17, 2011) -- Biochemists and molecular biologists have found that male and female sex hormones regulate expression of an important gene in neuronal cell culture through a mechanism that could explain not only higher levels of testosterone observed in some individuals with autism, but also why males have a higher incidence of autism than females. ... > full story

Tau-induced memory loss in Alzheimer’s mice is reversible; Study raises hopes for the development of effective therapies (February 17, 2011) -- Amyloid-beta and tau protein deposits in the brain are characteristic features of Alzheimer disease. The effect on the hippocampus, the area of the brain that plays a central role in learning and memory, is particularly severe. However, it appears that the toxic effect of tau protein is largely eliminated when the corresponding tau gene is switched off. Researchers have succeeded in demonstrating that once the gene is deactivated, mice with a human tau gene, which previously presented symptoms of dementia, regain their ability to learn and remember, and that the synapses of the mice also reappear in part. The scientists are now testing active substances to prevent the formation of tau deposits in mice. This may help to reverse memory loss in the early stages of Alzheimer disease -- in part, at least. ... > full story

Host genetics plays unexpected role in dance with pathogen (February 17, 2011) -- A new study suggests that differences in the host's genetics can make a big difference in susceptibility bacterial infection. Researchers show that the virulence of a strain of Yersinia pestis, notable for causing bubonic plague, varies drastically among mice strains with different genetic backgrounds. These findings carry major implications for vaccine development. ... > full story

Lie detection: Misconceptions, pitfalls and opportunities for improvement (February 17, 2011) -- Unlike Pinocchio, liars do not usually give telltale signs that they are being dishonest. In lieu of a growing nose, is there a way to distinguish people who are telling the truth from those who aren't? A new report discusses some common misconceptions about those proficient in the art of deception, reviews the shortcomings of commonly used lie-detection techniques, and presents new empirically supported methods for telling liars from truth-tellers with greater accuracy. ... > full story

Drug therapy shows significant benefit in treating a leading cause of childhood blindness (February 17, 2011) -- A readily available, inexpensive drug therapy showed a significant benefit in treating premature infants with the worst and historically most difficult-to-treat cases of retinopathy of prematurity. ... > full story

Eating berries may lower risk of Parkinson's (February 17, 2011) -- New research shows men and women who regularly eat berries may have a lower risk of developing Parkinson's disease, while men may also further lower their risk by regularly eating apples, oranges and other sources rich in dietary components called flavonoids. ... > full story

Biomarker could make diagnosing knee injury easier, less costly, othopaedists say (February 17, 2011) -- A recently discovered biomarker could help doctors diagnose a common type of knee injury, according to a new study. ... > full story

Security weaknesses in file-sharing methods used in clinical trials revealed (February 17, 2011) -- Patients who participate in clinical trials expect that their personal information will remain confidential, but a recent study found that the security practices used to transfer and share sensitive files were inadequate. ... > full story

Who's the boss? Americans respond faster to those with high social status (February 17, 2011) -- A new study examines how White Americans and Chinese people in China respond to pictures of their boss, suggesting cultural differences in our responses to authority figures. ... > full story

Whole genome sequencing used to help inform cancer therapy (February 17, 2011) -- Whole genome sequencing -- spelling out a person's entire DNA genetic code -- has moved one step closer to being a medical option for direct patient care. ... > full story

Customized knee replacement depends on surgeon's skill, not implant design, study finds (February 17, 2011) -- While the choices of knee implants are plentiful, the success of total knee replacement surgery still is dependent on the surgeon's skill, researchers say. ... > full story

Risks for quitting college identified (February 17, 2011) -- College students who consider dropping out are particularly sensitive to a handful of critical events including depression and loss of financial aid, according to a new study. ... > full story

Palliative radiotherapy for bone metastases guideline published (February 17, 2011) -- The American Society for Radiation Oncology Clinical Affairs and Quality Committee has developed a guideline for the use of radiation therapy in treating bone metastases. ... > full story

Dwarfism gene linked to protection from cancer and diabetes (February 16, 2011) -- A long-term study finds extremely low incidence of cancer and diabetes among individuals with a growth-stunting genetic defect. The authors ask whether controlling growth hormone in healthy adults might provide similar protection. ... > full story

Bleeding disorder often misdiagnosed, study suggests (February 16, 2011) -- A rare bleeding disorder that can lead to life-threatening bleeding episodes is misdiagnosed in 15 percent of cases according to new findings. ... > full story

Statin may affect markers associated with progression of HIV, trial suggests (February 16, 2011) -- A recent multicenter clinical trial of atorvastatin found that although the drug did not inhibit plasma HIV RNA levels, it did inhibit expression of cellular markers of immune activation and inflammation in patients with HIV infection. ... > full story

To escape blame, be a victim, not a hero, new study finds (February 16, 2011) -- Great works and praiseworthy behavior may bring respect and admiration, but these won't help us to escape blame when we do something wrong, says a new study by researchers at the University of Maryland and Harvard University. To do that, the researchers say, one needs to be a victim not a hero! ... > full story

Brain insulin plays critical role in the development of diabetes (February 16, 2011) -- Researchers have discovered a novel function of brain insulin, indicating that impaired brain insulin action may be the cause of the unrestrained lipolysis that initiates and worsens Type 2 diabetes in humans. ... > full story

New pneumococcal vaccine approach successful in early tests; Vaccine inhibits bacteria by mimicking naturally-acquired immunity (February 16, 2011) -- Pneumococcus (Streptococcus pneumoniae) accounts for as much as 11 percent of mortality in young children worldwide. While successful vaccines exist, they are expensive and only work against specific pneumococcal strains, with the risk of becoming less effective as new strains emerge. Researchers have now developed a new vaccine candidate that is potentially cheaper and able to protect against any pneumococcal strain. ... > full story

Dial 5683 for love: Dialing certain numbers on a cell phone changes your emotional state (February 16, 2011) -- A psychological scientist in Germany has found a way that cell phones, and specifically texting, have hacked into our brains. Just by typing the numbers that correspond to the letters in a word like "love," we can activate the meaning of that word in our minds. ... > full story

Hearing with your nose: How nasal stem cells could tackle childhood hearing problems (February 16, 2011) -- Stem cell scientists have found that patients suffering from hearing problems which began during infancy and childhood could benefit from a transplant of stem cells from their nose. The research reveals that mucosa-derived stem cells can help preserve hearing function during the early-onset of sensorineural hearing loss. ... > full story

Using chlorhexidine gluconate baths to reduce hospital-acquired infections (February 16, 2011) -- A new study has found a reduced risk of hospital-acquired infections when using two percent chlorhexidine gluconate cloths for daily bathing instead of soap and water. The study found a 64 percent decrease in the risk of acquiring an infection from either methicillin-resistant Staphylococcus aureus or Vancomycin-resistant Enterococcus. ... > full story

Got a goal? A helpful partner isn't always helpful (February 16, 2011) -- You might think that a loving partner helps keep you on track -- say, when you want to stick to your jogging or concentrate on your studies. But a new study reports the opposite: Thinking about the support a significant other offers in pursuing goals can undermine the motivation to work toward those goals -- and can increase procrastination before getting down to work. ... > full story

Increasing brain enzyme may slow Alzheimer's disease progression; Study finds damaging accumulation of tau proteins removed (February 16, 2011) -- Increasing a naturally occurring enzyme in the brain slowed the damaging accumulation of tau proteins that are toxic to nerve cells and eventually lead to the neurofibrillary tangles, a major pathological hallmark of Alzheimer's disease and other forms of dementia. ... > full story

Losing hair at 20 is linked to increased risk of prostate cancer in later life, study finds (February 16, 2011) -- Men who start to lose hair at the age of 20 are more likely to develop prostate cancer in later life and might benefit from screening for the disease, according to a new study. ... > full story

Researchers model fetal-to-adult hemoglobin switching: Important step towards cure for blood diseases (February 16, 2011) -- Researchers have engineered mice that model the switch from fetal to adult hemoglobin, an important step towards curing genetic blood diseases such as sickle cell anemia and beta-thalassemia. ... > full story

Drivers engaging in a secondary task may pay more attention to the road, study suggests (February 16, 2011) -- Although many human factors/ergonomics studies conducted over the past few years indicate that drivers who talk on the phone fail to attend to the road and increase the likelihood of an accident, the monotony of driving may also pose an accident risk. ... > full story

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ScienceDaily Top Science Headlines -- for Friday, February 18, 2011

ScienceDaily Top Science Headlines

for Friday, February 18, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.

Bears uncouple temperature and metabolism for hibernation, new study shows (February 18, 2011) -- New findings show that although black bears only reduce their body temperatures slightly during hibernation, their metabolic activity drops dramatically, slowing to about 25 percent of their normal, active rates. This feat leads researchers to believe that, in the future, the data collected in this study might be applied to a very wide range of endeavors -- from improving medical care to pioneering deep space travel. ... > full story

World's largest lake sheds light on ecosystem responses to climate variability (February 18, 2011) -- Siberia's Lake Baikal, the world's oldest, deepest and largest freshwater lake, has provided scientists with insight into the ways that climate change affects water temperature, which in turn affects life in the lake. ... > full story

New method for unraveling molecular structures (February 18, 2011) -- Chemists in Germany have introduced a new method for identifying chemical compounds. The approach they used is an improvement on nuclear magnetic resonance (NMR) measurements -- for decades one of the most successful methods for determining the chemical structure of organic molecules. The results show a sophisticated approach to structural data when classical methods of analysis fail. ... > full story

Pollution triggers genetic resistance mechanism in a coastal fish (February 18, 2011) -- For 30 years, two General Electric facilities released about 1.3 million pounds of polychlorinated biphenyls into New York's Hudson River, devastating and contaminating fish populations. Some 50 years later, one type of fish -- the Atlantic tomcod -- has not only survived but appears to be thriving in the hostile Hudson environment. ... > full story

Toward an optical atomic clock: Physicists develop atomic frequency standard for one of world’s most precise clocks (February 18, 2011) -- Polish physicists have been aiming to build an optical atomic clock, an extremely precise device with an accuracy of one second in a few dozen billion years, since 2008. The last of the three key components of the clock: an atomic frequency standard based on cold strontium atoms has just been developed. The clock itself will be assembled already this year. ... > full story

3-D video without the goggles (February 18, 2011) -- High-quality video communications capable of supporting flawless video conferencing and home entertainment without goggles could become a reality. Researchers in the UK are working on systems to support telepresence with the aid of three-dimensional 'Avatar-style' stereoscopic video and audio communications. ... > full story

Ozone layer’s future linked strongly to changes in climate, study finds (February 17, 2011) -- The ozone layer -- the thin atmospheric band high-up in the stratosphere that protects living things on Earth from the sun's harmful ultraviolet rays, not to be confused with damaging ozone pollution close to the ground -- faces potential new challenges even as it continues its recovery from earlier damage, according to a recently released international science assessment. The report also presents stronger evidence that links changes in stratospheric ozone and Earth's climate. ... > full story

Flocculent spiral has relatively low star formation rate (February 17, 2011) -- The galaxy NGC 2841 -- shown in a new Hubble Space Telescope image -- currently has a relatively low star formation rate compared to other spirals. It is one of several nearby galaxies that have been specifically chosen for a new study in which a pick 'n' mix of different stellar nursery environments and birth rates are being observed. ... > full story

Getting cars onto the road faster (February 17, 2011) -- Auto manufacturers are looking for shorter production times, faster logistics processes, new materials and technologies. A novel software platform will help companies to achieve these goals by reducing not only the development times but also the development costs. ... > full story

Insects hold atomic clues about the type of habitats in which they live (February 17, 2011) -- Scientists have discovered that insects contain atomic clues as to the habitats in which they are most able to survive. The research has important implications for predicting the effects of climate change on the insects, which make up three-quarters of the animal kingdom. ... > full story

World's first skyscraper was a monument to intimidation (February 17, 2011) -- An ancient tower at the archaeological site of Tel Jericho was built to exploit the primeval fears of Jericho's residents, according to new findings. "We believe this tower was one of the mechanisms to motivate people to take part in a communal lifestyle," one archeologist says. ... > full story

Scientists discover agave's tremendous potential as new bioenergy feedstock (February 17, 2011) -- A new article reviews the suitability of agave as a bioenergy feedstock that can sustain high productivity in spite of poor soil and stressful climatic conditions accompanying climate change. ... > full story

US public's knowledge of science: Getting better but a long way to go, study finds (February 17, 2011) -- Amid concerns about the lagging math and science performance of American children, American adults are actually scoring higher than they did 20 years ago on a widely used index of civic scientific literacy, according to new research. ... > full story

Global warming may reroute evolution, milkweed research finds (February 17, 2011) -- Rising carbon dioxide levels associated with global warming may affect interactions between plants and the insects that eat them, altering the course of plant evolution, research suggests. ... > full story

Scientists elevate warfighter readiness against invisible threats (February 17, 2011) -- In asymmetric warfare, early detection and identification of trace level chemical and biological agents and explosive compounds is critical to rapid reaction, response, and survivability. ... > full story

Physicists propose beaming laser at atmospheric sodium to measure global magnetic field (February 17, 2011) -- Oil and mineral companies, climatologists and geophysicists all rely on expensive satellites to measure the Earth's magnetic field, but there may be a cheaper option. A physicist proposes shining a pulsed orange laser on the layer of sodium atoms 90 km above the Earth to directly read the local magnetic field. All that's needed is a simple laser like those used to produce laser guide stars for telescopes, plus a telescope detector. ... > full story

Herschel measures dark matter for star-forming galaxies (February 17, 2011) -- The Herschel Space Observatory has revealed how much dark matter it takes to form a new galaxy bursting with stars. The findings are a key step in understanding how dark matter, an invisible substance permeating our universe, contributed to the birth of massive galaxies in the early universe. ... > full story

Choosing your neighbors: Scientists see how microbes relate in space (February 17, 2011) -- It is now possible to see up to 28 differently labeled microbes in a single field of view, due to a new microscopy technique. ... > full story

'Periodic table of shapes' to give a new dimension to math (February 17, 2011) -- Mathematicians are creating their own version of the periodic table that will provide a vast directory of all the possible shapes in the universe across three, four and five dimensions, linking shapes together in the same way as the periodic table links groups of chemical elements. The three-year project should provide a resource that mathematicians, physicists and other scientists can use for calculations and research in a range of areas, including computer vision, number theory, and theoretical physics. The researchers are aiming to identify all the shapes across three, four and five dimensions that cannot be divided into other shapes. ... > full story

Reflected glory: New image of nebula shows brilliant starlight as it ricochets off dust particles (February 17, 2011) -- The nebula Messier 78 takes center stage in this image taken with the Wide Field Imager on the MPG/ESO 2.2-meter telescope at the La Silla Observatory in Chile, while the stars powering the bright display take a backseat. The brilliant starlight ricochets off dust particles in the nebula, illuminating it with scattered blue light. Igor Chekalin was the overall winner of ESO's Hidden Treasures 2010 astrophotography competition with his image of this stunning object. ... > full story

New probe of proton spin structure: How quarks of different flavors contribute to spin (February 17, 2011) -- Scientists hoping to unravel the mystery of proton spin at the Relativistic Heavy Ion Collider (RHIC), a 2.4-mile-circumference particle accelerator at Brookhaven National Laboratory, have a new tool at their disposal -- the first to directly explore how quarks of different types, or "flavors," contribute to the overall spin of the proton. ... > full story

Thawing permafrost likely will accelerate global warming, study finds (February 17, 2011) -- Up to two-thirds of Earth's permafrost likely will disappear by 2200 as a result of warming temperatures, unleashing vast quantities of carbon into the atmosphere, says a new study. ... > full story

Storms, soccer matches hidden in seismometer noise (February 17, 2011) -- Who knew? The chance discovery that spikes in seismometer noise recorded in Africa corresponded with soccer matches has led to the discovery that there's a lot more buried in the noise, including a signal from the famous storms of the Southern Atlantic Ocean, the bane of ships of sail. ... > full story

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Thursday, February 17, 2011

ScienceDaily Health Headlines -- for Thursday, February 17, 2011

ScienceDaily Health Headlines

for Thursday, February 17, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.

Scientists discover cell of origin for childhood muscle cancer (February 16, 2011) -- Researchers have defined the cell of origin for a kind of cancer called sarcoma. They report that childhood and adult sarcomas are linked in their biology, mutations and the cells from which these tumors first start. These findings may lead to nonchemotherapy medicines that can inhibit "molecular targets" such as growth factor receptors, thereby stopping or eradicating the disease. ... > full story

Surgery without incisions for heartburn (February 16, 2011) -- Millions of Americans, or 10 percent of the population, suffer from daily heartburn or other symptoms of reflux such as regurgitation, chronic cough, hoarseness and dental erosion. In a city like Austin, as many as 180,000 to 210,000 people may suffer from heartburn/reflux. ... > full story

Analysis of violent deaths of Iraqi civilians between 2003-2008 (February 16, 2011) -- A new article provides the most detailed assessment thus far of civilian deaths in the course of the recent Iraq war. ... > full story

Zinc reduces the burden of the common cold (February 16, 2011) -- Zinc supplements reduce the severity and duration of illness caused by the common cold, according to a systematic review. The findings could help reduce the amount of time lost from work and school due to colds. ... > full story

Lavender oil has potent antifungal effect (February 16, 2011) -- Lavender oil could be used to combat the increasing incidence of antifungal-resistant infections, according to a new study. The essential oil shows a potent antifungal effect against strains of fungi responsible for common skin and nail infections. ... > full story

Overabundance of protein expands breast cancer stem cells; Two drugs block cancer-promoting chain of events (February 16, 2011) -- An essential protein for normal stem cell renewal also promotes the growth of breast cancer stem cells when it's overproduced in those cells, researchers report. ... > full story

Wireless device helps athletes get the most out of exercise (February 16, 2011) -- New research from the UK could help athletes train to their maximum potential without putting undue pressure on their muscles. A special wireless device -- called the iSense -- has been devised which is capable of predicting and detecting the status of muscles during training and can be adapted to any sport. ... > full story

Video games to enhance learning (February 16, 2011) -- It's a frustrating problem for many of today's parents: Little Jacob or Isabella is utterly indifferent to schoolwork during the day but then happily spends all evening engrossed in the latest video game. The solution isn't to banish the games, says one researcher. A far better approach, she says, is to make the learning experience more enjoyable by creating video games into which educational content and assessment tools have been surreptitiously added -- and to incorporate such games into school curricula. ... > full story

New study finds no cognitive impairment among ecstasy users (February 16, 2011) -- In contrast to many prior studies, ecstasy users in a new study showed no signs of cognitive impairment attributable to drug use: ecstasy use did not decrease mental ability. ... > full story

Atomic model of tropomyosin bound to actin (February 16, 2011) -- New research sheds light on the interaction between the semi-flexible protein tropomyosin and actin thin filaments. The study provides the first detailed atomic model of tropomyosin bound to actin and significantly advances the understanding of the dynamic relationship between these key cellular proteins. ... > full story

Alcohol's disruptive effects on sleep may be more pronounced among women (February 16, 2011) -- Researchers have known for decades that alcohol can initially deepen sleep during the early part of the night but then disrupt sleep during the latter part of the night; this is called a "rebound effect." A new study of the influence of gender and family history of alcoholism on sleep has found that intoxication can increase feelings of sleepiness while at the same time disrupt actual sleep measures in healthy women more than in healthy men. ... > full story

Good diets fight bad Alzheimer's genes: Diets high in fish oil have a beneficial effect in patients at risk, researcher says (February 16, 2011) -- Recent research suggests that a diet high in omega-3 oils and low in cholesterol can significantly reduce the negative affects of the APOE4 gene, which is an indicator of Alzheimer's disease. ... > full story

Designing new molecular tools to study the life and death of a cancer cell (February 16, 2011) -- Basic and translational research on cancer, and development of new cancer therapeutics, has focused on different aspects of cancer cellular function. One area of focus is the life and death of a cancer cell. In a new study, scientists have developed new synthetic molecules as models to study the structural and functional role of the proline residue and tetrapeptide sequence important for the regulation of cancer cell apoptosis by the XIAP protein. ... > full story

One third of us have tried dating websites with middle-aged suitors using them most (February 16, 2011) -- A new study suggests that nearly one in three of us who use the internet have visited online dating sites. An international survey of 24,000 men and women who are presently online found that just six per cent had gone to dating websites in 1997 but by 2009, 30 per cent of the sample had tried them with 15 per cent finding their current partner that way. ... > full story

Mental retardation gene provides insights into brain formation (February 15, 2011) -- Scientists have uncovered new clues to memory and learning by exploring the function of a single gene, and at the same time, have provided insights into a form of human mental retardation. ... > full story

Active wound healing can accelerate tumor formation, study finds (February 15, 2011) -- Processes that are involved in active wound healing can lead to an increased risk for basal cell carcinoma in the skin, according to a new study. ... > full story

New malaria vaccine depends on … mosquito bites? (February 15, 2011) -- The same menace that spreads malaria -- the mosquito bite -- could help wipe out the deadly disease, according to researchers working on a new vaccine. ... > full story

Method of DNA repair linked to higher likelihood of genetic mutation (February 15, 2011) -- Accurate transmission of genetic information requires the precise replication of DNA. Errors in DNA replication are common and nature has developed several cellular mechanisms for repairing these mistakes. Mutations, which can be deleterious (development of cancerous cells), or beneficial (evolutionary adaption), arise from uncorrected errors. Researchers report that a method by which cells repair breaks in their DNA, known as break-induced replication, is up to 2,800 times more likely to cause genetic mutation than normal DNA synthesis. ... > full story

You are what you app: Choice of smartphone applications define your computing style (February 15, 2011) -- The applications you add to your smartphone can label you as a specific "appitypes," says a professor of science and technology studies. ... > full story

'Healthy' patients at high risk of cardiac death identified (February 15, 2011) -- The way the heart responds to an early beat is predictive of cardiac death, especially for people with no conventional markers of cardiovascular disease, according to new research. ... > full story

Obesity and knee osteoarthritis shorten healthy years of life (February 15, 2011) -- Due to obesity and symptomatic knee osteoarthritis, Americans over the age of 50 will together lose the equivalent of 86 million healthy years of life, concluded researchers who investigated the potential gains in quality and quantity of life that could be achieved averting losses due to obesity and knee OA. ... > full story

Why problem drinking during adolescence is never a 'phase' (February 15, 2011) -- The Rutgers Alcohol Problem Index (RAPI) is widely used to assess adolescent drinking-related problems. Researchers used adolescent RAPI scores to(examine diagnoses of alcohol dependence during young adulthood. More drinking-related problems experienced at age 18 were associated with a diagnosis of alcohol dependence at age 25, and this predictive(association was stronger in females than males. ... > full story

Molecular link between reproduction in yeast and humans (February 15, 2011) -- A novel study draws a completely unexpected link between reproductive proteins in humans and proteins involved in fertilization in invertebrates, as well as mating between haploid cells in yeast. Because human and yeast are separated by 1 billion years of evolution, these findings may have important implications for our understanding of the molecular mechanisms underlying sex, and how they originated. ... > full story

Hearing loss associated with development of dementia (February 15, 2011) -- Older adults with hearing loss appear more likely to develop dementia, and their risk increases as hearing loss becomes more severe, according to a new article. ... > full story

Gene that regulates immune system linked to preeclampsia (February 15, 2011) -- Researchers have discovered that the placentas of women who suffer preeclampsia during pregnancy have an overabundance of a gene associated with the regulation of the body's immune system. ... > full story

Many consumers believe 36 months is longer than 3 years (February 15, 2011) -- Consumers often have a distorted view when they compare information that involves numbers, according to a new study. ... > full story

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