ScienceDaily Top Science Headlines
for Thursday, July 29, 2010
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Diabetes care: Implanted glucose sensor works for more than a year in animal studies (July 29, 2010) -- Bioengineers have developed an implantable glucose sensor and wireless telemetry system that continuously monitors tissue glucose and transmits the information to an external receiver. A new article describes the use of this glucose-sensing device as an implant in animals for over one year. After human clinical trials and FDA approval, the device may be useful to people with diabetes as an alternative to finger sticking and short-term, needle-like glucose sensors that have to be replaced every three to seven days. ... > full story
Weight issues move up need for walkers, canes, other devices (July 29, 2010) -- Obese older adults are more likely to use walkers, canes and other mobility devices at a younger age, and may run the risk of using them incorrectly, according to new research. ... > full story
Talking touchscreens aid patients (July 29, 2010) -- Multimedia talking touchscreens, housed in computer kiosks at clinics and hospitals, are helping researchers and clinicians at local health care centers enhance patient-centered care for patients with diverse language, literacy and computer skills. ... > full story
Penalty points system driver's license reduces accidents on a temporary basis, Spanish study finds (July 29, 2010) -- Researchers have determined that after the implementation in 2006 of the penalty points system driver's license in Spain, there has been a reduction of 12.6 percent in the number of deaths in highway accidents. However, the effect on fatal accidents lasted only two years. ... > full story
Sirtuin1 may boost memory and learning ability; Discovery could lead to new drugs to fight Alzheimer's, other neurological diseases (July 29, 2010) -- The same molecular mechanism that increases life span through calorie restriction may help boost memory and brainpower, researchers report. ... > full story
Millions of Americans in early stages of kidney disease need stroke monitoring, research finds (July 29, 2010) -- Millions of Americans in the early stages of chronic kidney disease are at an increased risk of having atrial fibrillation -- a major risk factor for stroke -- according to new research. ... > full story
Mysterious workings of cholera bacteria uncovered (July 28, 2010) -- Researchers have found that an enzyme in the bacteria that causes cholera uses a previously unknown mechanism in providing the bacteria with energy. Because the enzyme is not found in most other organisms, including humans, the finding offers insights into how drugs might be created to kill the bacteria without harming humans. ... > full story
Nanotechnology for water purification (July 28, 2010) -- Researchers in India are investigating the use of several nanotechnology approaches to water purification. Water purification using nanotechnology exploits nanoscopic materials such as carbon nanotubes and alumina fibers for nanofiltration ... > full story
Novel algorithm cuts the risks of choosing ineffectual team members (July 28, 2010) -- Choosing team members is a risky business whether the field is world-class soccer management or car manufacture. Researchers describe a novel algorithm that can cut the risks associated with choosing ineffectual members and so bolster success in any field involving teamwork. ... > full story
Huntington's disease discovery provides new hope for treatment (July 28, 2010) -- Australian scientists have identified the behavior of the mutant protein "huntingtin" which leads to the fatal Huntington's disease providing potential targets to treat the disease, a new study reveals. ... > full story
Multiple sclerosis: Antihypertensive drug ameliorates inflammation in the brain (July 28, 2010) -- Researchers have discovered a new signaling pathway of brain cells that explains how widely used antihypertensive drugs could keep inflammation in multiple sclerosis in check. ... > full story
Why fad diets work well for some, but not others (July 28, 2010) -- Using fruit flies, researchers have found that genes interacting with diet, rather than diet alone, are the main cause of variation in metabolic traits, such as body weight. This helps explain why some diets work better for some people than others, and suggests that future diets should be tailored to an individual's genes rather than to physical appearance. ... > full story
Morphine blocks tumor growth, study suggests (July 28, 2010) -- Current research suggests that taking morphine can block new blood vessel and tumor growth. ... > full story
Early repolarization pattern is associated with cardiac risk among the middle aged (July 28, 2010) -- The prevalence of early repolarization pattern among 35- to 54-year-olds is higher than previously thought, and has a clear link to an increased risk of cardiac death, especially among men, according to a new study. ... > full story
Background music can impair performance, cites new study (July 28, 2010) -- For decades research has shown that listening to music alleviates anxiety and depression, enhances mood, and can increase cognitive functioning, such as spatial awareness. However, until now, research has not addressed how we listen to music. For instance, is the cognitive benefit still the same if we listen to music whilst performing a task, rather than before it? Further, how does our preference for a particular type of music affect performance? A new study shows that listening to music that one likes whilst performing a serial recall task does not help performance any more than listening to music one does not enjoy. ... > full story
Leap forward in efforts to develop treatments for Huntington's disease (July 28, 2010) -- Research reveals that an enzyme linked with multiple disorders -- including stroke, cancer and rheumatoid arthritis -- is also involved in the generation of toxic protein fragments in Huntington's disease. ... > full story
Where do the drugs go? (July 28, 2010) -- Drug delivery inside the body is a complicated process. Compounds travel through a maze of aqueous solutions, lipid membranes, and barriers between the blood and tissues like the brain. New research presents a theoretical model that accurately predicts the hydration free energy (HFE) of a wide variety of organic compounds. ... > full story
Two catalysts made to work together: May lead to pharmaceuticals with less chemical waste (July 28, 2010) -- Much like two children in the back seat of a car, it can be challenging to get two catalysts to cooperate for the greater good. Now chemists have gotten two catalysts to work together -- something easily done by nature but a difficult thing to do in the laboratory. The findings will allow medicinal chemists to invent new reactions and produce valuable bioactive compounds faster with less impact on the environment. ... > full story
People confront prejudice only when they believe others' personalities can change, study finds (July 28, 2010) -- Confronting someone who makes a prejudiced remark can be a good thing -- but not everyone does it. Researchers studied how and when targets of bias will speak up, and found that they're more likely to do so if they hold a particular belief: that people's personalities can change. ... > full story
Alcohol reduces the severity of rheumatoid arthritis, study finds (July 28, 2010) -- Drinking alcohol may reduce the severity of rheumatoid arthritis, according to new research. It is the first time that this effect has been shown in humans. The study also finds that alcohol consumption reduces the risk of developing the disease, confirming the results of previous studies. ... > full story
Getting a step ahead of pathogens (July 28, 2010) -- A recent article examines the possibility of using epistasis to predict the outcome of the evolutionary processes, especially when the evolving units are pathogens such as viruses. ... > full story
Relationships improve your odds of survival by 50 percent, research finds (July 28, 2010) -- In a new study, researchers report that social connections -- friends, family, neighbors or colleagues -- improve our odds of survival by 50 percent. ... > full story
Genetic risk score associated with breast cancer risk; predictive of type of disease (July 28, 2010) -- Women with higher risk scores that consisted of having certain genetic variants most strongly linked to breast cancer had an associated higher risk of breast cancer, with these scores also highly predictive of estrogen receptor-positive disease, according to a new study. ... > full story
Many knee and hip replacement patients experience weight decrease after surgery (July 28, 2010) -- Patients often exhibit a significant decrease in weight and body mass index (BMI) after undergoing knee or hip replacement surgery (arthroplasty). ... > full story
Delirium in older patients associated with greater risk of death, dementia and institutionalization (July 28, 2010) -- A review and analysis of previous research indicates that delirium in elderly patients is associated with an increased risk of death, dementia, and institutionalization, independent of age, co-existing illnesses or illness severity, according to a new study. ... > full story
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