ScienceDaily Top Science Headlines
for Wednesday, February 2, 2011
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Natural molecule indirectly prevents stable clot formation (February 2, 2011) -- A scientist has identified a new role for a natural signaling molecule in preventing blood clot formation. The molecule could become a target for the development of novel and cost-effective treatments for blood clotting diseases such as Hemophilia A. ... > full story
High levels of circulating DNA may signal faster progression of lung cancer (February 2, 2011) -- High levels of circulating DNA may indicate faster progression of lung cancer and lower overall survival, according to a new study. ... > full story
Scientists customize a magnet's performance by strategically replacing key atoms (February 2, 2011) -- Scientists have strategically replaced key atoms in a gadolinium-germanium compound, causing changes in the resulting alloy's ferromagnetism. The discovery may eventually help as materials scientists search for new, exotic substances for use in today's and future generations of high-tech products. ... > full story
Too many pitches strike out youth athletes early, new 10 year study suggests (February 2, 2011) -- For years, sports medicine professionals have talked about youth pitching injuries and the stress the motion causes on developing bones and muscles. In a new, 10-year study, researchers showed that participants who pitched more than 100 innings in a year were 3.5 times more likely to be injured. ... > full story
Yeast used to detect proteins involved in neurodegenerative diseases (February 2, 2011) -- Researchers have developed and patented a method using Saccharomyces cerevisiae yeast to detect in human proteins the formation of oligomers, small toxic aggregations of molecules which can initiate the assembly of amyloid fibers found in neurodegenerative diseases. The test allows validating the efficacy of compounds which could dissolve or inhibit these aggregates, as well as studying at basic level the therapeutic potentiality of a large number of molecules. ... > full story
African-Americans have better stroke survival rates (February 2, 2011) -- A new study shows that African Americans have a better survival rate compared to whites after being hospitalized for a stroke. This conclusion contradicts prevailing wisdom and is one piece in a growing body of evidence that points to the important role that patients -- and the decision they and their families make in terms of treatment -- may play on mortality rates. ... > full story
Exotic phases on an atom chip (February 2, 2011) -- The development of modern technologies relies on the exquisite knowledge of transport properties. Electronic devices and computers are indeed based on the possibility to generate and control currents of electrons, elementary particles which abound in materials. By exploiting their electric charge and their response to electromagnetic fields, these particles are minutely guided along circuits composed of fine conducting materials. Thus, the information transport from which we benefit daily is associated to an intrinsic property of the electron: its charge. ... > full story
Teens with HIV at high risk for pregnancy, complications, research finds (February 2, 2011) -- Teenage girls and young women infected with HIV get pregnant more often and suffer pregnancy complications more frequently than their HIV-negative peers, according to new research. ... > full story
New study alters long-held beliefs about shingles (February 1, 2011) -- For decades, medical wisdom about shingles has been that it's a once-in-a-lifetime experience. The commonly-held belief is that patients are protected from a recurrence of the herpes zoster virus, which causes shingles, after one episode. But according to a new study, recurrences of shingles may be significantly more common than doctors have suspected. ... > full story
Intermittent preventive treatment of malaria in children and insecticide-treated bednets reduce prevalence of infection by up to 85 percent (February 1, 2011) -- Two separate studies -- carried out in Burkina Faso and Mali -- have found that combining intermittent preventive treatment of malaria in children with insecticide-treated bednets can substantially reduce the incidence of severe malaria. ... > full story
Opiate abuse: Protracted abstinence revisited (February 1, 2011) -- Opiate abuse is a chronic disorder and maintaining abstinence represents a major challenge for addicts. Individuals recovering from opiate dependence have long reported that while the acute withdrawal symptoms from opiates may pass relatively quickly, they do not feel quite right for several weeks or even months thereafter. Called the “protracted abstinence syndrome,” this cluster of vague depressive-like symptoms can include reduced concentration, low energy level, poor sleep quality, and anhedonia. New data in animals now implicates the serotonin system in this phenomenon. ... > full story
Early tests find nanoshell therapy effective against brain cancer (February 1, 2011) -- Researchers have successfully destroyed tumors of human brain cancer cells in the first animal tests of a minimally invasive treatment that zaps glioma tumors with heat. The researchers reported that four of seven mice that received the new treatment for glioma tumors had no signs of cancer more than three months after treatment. ... > full story
Microbubble ultrasound and breast biopsies (February 1, 2011) -- Using "microbubbles" and ultrasound can mean more targeted breast biopsies for patients with early breast cancer, helping to determine treatment and possibly saving those patients from undergoing a second breast cancer surgery, a new study shows. ... > full story
Biologists discover 'control center' for sperm production (February 1, 2011) -- Biologists have published results of a new study into the intricacies of sex in flowering plants. They have found that a gene in plants, called DUO1, acts as a master switch to ensure twin fertile sperm cells are made in each pollen grain. ... > full story
Bilinguals find it easier to learn a third language (February 1, 2011) -- Researchers set out to examine what benefits bilingualism might have in the process of learning a third language. They found that students who know two languages have an easier time gaining command of a third language than students who are fluent in only one language. ... > full story
PET scans may allow early prediction of response to targeted therapy of thyroid cancer (February 1, 2011) -- Positron emission tomography (PET) can image metabolic changes following treatment with the protein kinase inhibitor vandetanib, helping to define the therapy response or the effectiveness of the therapeutic agent, according to new research. Currently being tested in clinical trials, vandetanib inhibits the function of the RET (rearranged-during-transfection protein) proto-oncogene and other protein kinases involved in the development and progression of cancer. ... > full story
Where has all the Gulf spill oil gone? (February 1, 2011) -- Many questions remain about the fate and environmental impact of the marine oil caused by the massive spill in the Gulf of Mexico from the Deepwater Horizon offshore drilling platform. ... > full story
Gestures provide a helping hand in problem solving (February 1, 2011) -- Talking with your hands can trigger mental images that help solve complex problems relating to spatial visualization, an important skill for both students and professionals, according to new research. ... > full story
Researchers unlock the potential for exploring kidney regeneration (February 1, 2011) -- It is estimated that up to 10 percent of the US population may have some form of renal disease, with 450,000 patients with end stage renal disease requiring hemodialysis. Researchers have identified a cell in zebrafish that can be transplanted from one fish to another to regenerate nephrons, providing the potential to improve kidney function. ... > full story
Brain can learn to overcome sleep apnea, study suggests (February 1, 2011) -- New research could provide some restful nights for the 18 million North Americans who suffer from obstructive sleep apnea. ... > full story
Physical activity linked to political participation (February 1, 2011) -- How is going for a jog like voting for president? As far as our brains are concerned, physical activity and political activity are two sides of the same coin. Scientists found that people who live in more active states are also more likely to vote. And in an experiment, volunteers who were exposed to active words like "go" and "move" said they were more likely to vote than did people who saw words like "relax" and "stop." ... > full story
New probiotic combats inflammatory bowel disease (February 1, 2011) -- You know the probiotics in your peach yogurt are healthful, but now it appears they may also be a powerful treatment for disease. A genetically tweaked version of a common probiotic in yogurt and cheese appears to be an effective therapy for inflammatory bowel diseases including Crohn's disease and ulcerative colitis. Researchers found the novel probiotic significantly halted disease progression in a preclinical study. It may also be useful in treating colon cancer, researchers suggest. ... > full story
High-spending hospitals may save more lives (February 1, 2011) -- When hospitalized for a major acute medical condition -- including heart attack, stroke and pneumonia -- patients were less likely to die in high-spending hospitals, according to a new study. ... > full story
Understanding the autistic mind: Evidence that autistic patients have trouble understanding other people's intentions (February 1, 2011) -- Neuroscientists have revealed that high-functioning autistic adults appear to have trouble using theory of mind to make moral judgments in certain situations. ... > full story
Smart lasers could make cancer biopsies painless, help speed new drugs to market (February 1, 2011) -- Biopsies in the future may be painless and noninvasive, thanks to smart laser technology. To test for skin cancer, patients today must endure doctors cutting away a sliver of skin, sending the biopsy to a lab and anxiously awaiting the results. Using laser microscopes that deploy rapid, ultra-short pulses to identify molecules, doctors may soon have the tools to painlessly scan a patient's troublesome mole and review the results on the spot, new research suggests. ... > full story
Altered cell metabolism has role in brain tumor development (February 1, 2011) -- Scientists have discovered that genetic mutations found in brain tumors can alter tumor metabolism. This work could help lead to new designs for anti-cancer drugs based on the unique properties of these tumors. ... > full story
New approach needed to prevent major 'systemic failures' such as power outages, subprime mortgage crisis and Gulf oil spill (February 1, 2011) -- A Purdue University researcher is proposing development of a new cross-disciplinary approach for analyzing and preventing systemic failures in complex systems that play a role in calamities ranging from huge power outages to the BP Deepwater Horizon disaster and the subprime mortgage crisis. ... > full story
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