ScienceDaily Top Science Headlines
for Wednesday, July 21, 2010
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Key pathway in end-stage prostate cancer tumor progression blocked (July 21, 2010) -- Researchers have found that blocking one of the enzymatic steps that allow a prostate tumor to produce androgens could be the key in halting a tumor's growth. ... > full story
Rapid losses of Africa's native livestock threaten continent's food supply, experts warn (July 21, 2010) -- Urgent action is needed to stop the rapid and alarming loss of genetic diversity of African livestock that provide food and income to 70 percent of rural Africans and include a treasure-trove of drought- and disease-resistant animals, according to a new analysis presented at a major gathering of African scientists and development experts. ... > full story
No pain, no gain? Concrete thinking increases consumer confidence (July 21, 2010) -- The confidence you feel when making a choice might depend on whether you're thinking concretely or abstractly, according to a new study. ... > full story
Probiotics use in mothers limits eczema in their babies, study finds (July 21, 2010) -- Women who drank milk with a probiotic supplement during and after their pregnancy cut the incidence of eczema in their children by almost half compared to mothers who drank a placebo, researchers have shown. ... > full story
Scientists identify key molecular regulator of cardiac hypertrophy (July 21, 2010) -- Scientists have identified a key molecular regulator of cardiac hypertrophy (enlargement of the heart) that may provide a therapeutic target for a major risk factor of heart failure and early death. The researchers report in an upcoming edition of Nature Medicine that over-expression of the protein CIB1 (also called calmyrin) triggers biochemical processes that lead to cardiac hypertrophy. The study was posted online July 18 in advance of publication. ... > full story
Consumers love underdogs (July 21, 2010) -- Consumers strongly relate to brands that they perceive as underdogs, according to a new study. ... > full story
Prolonged mobile phone use may be linked to tinnitus (July 20, 2010) -- Regularly using a mobile phone for at least four years seems to be associated with a doubling in the risk of developing chronic tinnitus (persistent ringing/roaring/hissing in the ear), indicates a small study. ... > full story
Preterm births higher among overweight and obese mothers, study finds (July 20, 2010) -- Overweight and obese women are at greater risk of giving birth to a preterm baby compared with normal weight women, a new study finds. ... > full story
Data presentation and consumer confidence (July 20, 2010) -- Is it better to present data in percentages (80% of 70) or as a frequency (56 out of 70 times)? According to a new study, data presented in the frequency format leads to more accurate judgments. ... > full story
Healthy families, religious involvement buffer youth against risk factors related to drug abuse (July 20, 2010) -- American-Indian adolescents continue to have the highest rates of illicit drug use among all ethnic groups. Recent findings reveal that positive family relationships and religious affiliation can counteract risk factors -- including addicted family members, exposure to violence and deviant peers -- associated with drug use. ... > full story
Asthma and eczema sufferers have a lower risk of developing a cancer, study finds (July 20, 2010) -- Men who had a history of asthma or eczema generally had a lower risk of developing cancer, according to a new study. ... > full story
Obesity in early adulthood associated with increased risk of psoriatic arthritis (July 20, 2010) -- Among persons with psoriasis, those who reported being obese at age 18 had an increased risk of developing psoriatic arthritis, according to a report in the July 19 issue of Archives of Dermatology, one of the JAMA/Archives journals. ... > full story
New method developed for synchronizing clocks (July 20, 2010) -- Researchers report on a new way to accurately synchronize clocks. The new method uses both GPS and the Internet to set clocks within 10 nanoseconds of a reference clock located anywhere on Earth. ... > full story
Children's school performance tied to family 'type' (July 20, 2010) -- The way a family interacts can have more of an impact on a child's predicted school success than reading, writing or arithmetic, according to a new study. ... > full story
Widely used chemicals linked to ADHD in children (July 20, 2010) -- Researchers suggests a link between polyfluoroalkyl chemicals (PFCs), industrial compounds which are widely used in many consumer products, and attention deficit hyperactivity disorder in children. PFCs are highly stable compounds used in industrial and commercial products like stain-resistance coatings, food packaging, and fire-fighting foams. ... > full story
Image-processing algorithm reduces CT radiation dose by as much as 95 percent (July 20, 2010) -- In the wake of recent radiation overdoses, researchers excited by CT perfusion's promise for diagnosing stroke, cancer, and possibly heart disease have developed a way to reduce the amount of radiation involved in the procedure -- which, when done properly, already involves very little risk. ... > full story
Uncovering behavior of long-dead insects (July 20, 2010) -- What can you learn from the 120-year-old body of a parasitoid wasp? Using material from museum collections, researchers report that they can tell how males wasps court their females, based on dead specimens. ... > full story
Brain training reverses age-related cognitive decline (July 20, 2010) -- Specialized brain training targeted at the regions of a rat's brain that process sound reversed many aspects of normal, age-related cognitive decline and improved the health of the brain cells, according to a new study. ... > full story
Air travel no 'significant threat' to cardiovascular health, says new guidance (July 20, 2010) -- Air travel poses no "significant threat" to cardiovascular health, with few conditions likely to warrant restrictions, concludes new guidance. ... > full story
Health impacts of Deepwater Horizon disaster on coastal Louisiana residents surveyed (July 20, 2010) -- Researchers have conducted a survey to gain an understanding of the health impacts the ongoing Deepwater Horizon disaster is having on people living in Louisiana's coastal communities. ... > full story
Foreign accents make speakers seem less truthful to listeners, study finds (July 20, 2010) -- A foreign accent undermines a person's credibility in ways that the speaker and the listener don't consciously realize, new research shows. Because an accent makes a person harder to understand, listeners are less likely to find what the person says as truthful, researchers found. The problem of credibility increases with the severity of the accent. ... > full story
Reprogrammed cells 'remember,' retain characteristics of their cells of origin (July 20, 2010) -- Investigators at the Massachusetts General Hospital Center for Regenerative Medicine have confirmed that induced pluripotent stem cells retain some characteristics of the cells from which they were derived, something that could both assist and impede potential clinical and research uses, and find that these cellular "memories" fade and disappear as cell lines are cultured through successive generations. ... > full story
Bridging the gender gap: Combined technologies offer promise for detecting colon cancer in women (July 20, 2010) -- Researchers have found that combining novel optical technologies with a common colon cancer screening test may allow doctors to more accurately detect the presence of colon cancer, particularly in women. The study combined a polarization-gating optical probe alongside traditional flexible sigmoidoscopy to measure the early increase in blood supply in rectal tissue as a marker for colon cancer. ... > full story
Bioinformatics used to detect rogue use of synthetic biology (July 20, 2010) -- A team of students is using bioinformatics to implement federal guidance on synthetic genomics. The students' work will help gene synthesis companies and their customers better detect the possible use of manufactured DNA as harmful agents for bioterrorism. ... > full story
Soldiers with brain injuries at higher risk of epilepsy decades later, study finds (July 20, 2010) -- Soldiers who receive traumatic brain injuries during war may be at a higher risk of epilepsy even decades after the brain injury occurred, according to new research. ... > full story
New test to predict success of IVF treatment (July 20, 2010) -- Women who fail to become pregnant after undergoing in vitro fertilization treatment often grapple with the decision of whether to try IVF again. It's a difficult one to make: The procedure carries hefty financial, physical and emotional costs, and there are no guarantees it will work. ... > full story
Increased waistline and high triglyceride levels indicate risk of coronary heart disease, study finds (July 20, 2010) -- People with a larger waistline and high triglyceride levels are at increased risk of coronary heart disease, according to a new study. ... > full story
Advance made toward communication, computing at 'terahertz' speeds (July 20, 2010) -- Physicists in the United States and Germany have discovered a way to use a gallium arsenide nanodevice as a signal processor at "terahertz" speeds, the first time it's been used for this purpose and an important step forward in the new world of optical communication and computing. ... > full story
Microbicide gel: Reduced risk of HIV and herpes infections in women, study shows (July 20, 2010) -- Researchers have achieved an important scientific breakthrough in the fight against HIV and genital herpes with a vaginal gel that significantly reduces a woman's risk of being infected with these viruses, according to a ground-breaking safety and effectiveness study of an antiretroviral microbicide gel study. ... > full story
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