Add BrightSurf on Google Email

Science News Archive January 2011 - Page 18


Page 18 of 22

Embryonic stem cells help deliver 'good genes' in a model of inherited blood disorder

Researchers developed a gene therapy strategy using parthenogenetic embryonic stem cells, which can differentiate into multiple tissue types and potentially reduce rejection problems. The approach shows promise for treating autosomal dominant diseases like Beta Thalassemia, tuberous sclerosis, or Huntington's disease

SourceNationwide Children's Hospital·JournalJournal of Clinical Investigation·DateJan 10, 2011

Supercomputer unravels structures in DVD materials

A team of researchers used the Jülich supercomputer to unravel the structures of DVD materials, revealing a new understanding of the read and write processes. The study provides insight into the rapid phase change mechanisms, which could lead to improved storage materials with longer life, larger capacity, or shorter access times.

SourceHelmholtz Association·JournalNature Materials·DateJan 9, 2011

Wave power could contain fusion plasma

Researchers at the University of Warwick have confirmed a longstanding prediction that high-energy alpha particles will be key to generating fusion power in next-generation tokamaks. They found that LH waves, often used externally, can occur naturally in fusion plasmas and help exploit alpha particle energy.

SourceUniversity of Warwick·JournalPhysical Review Letters·DateJan 9, 2011

Grape ingredient resveratrol increases beneficial fat hormone

Researchers at the University of Texas Health Science Center San Antonio found that resveratrol stimulates the expression of adiponectin, a hormone with wide-ranging benefits for obesity-related medical complications. This discovery provides important information on the development of novel therapeutic drugs for these diseases.

SourceUniversity of Texas Health Science Center at San Antonio·JournalJournal of Biological Chemistry·DateJan 7, 2011

Most consumers want predictive tests to learn if a disease is in their future

A national survey found that 76% of people would take a predictive test to learn about their future health risks, with willingness to pay varying by disease type and accuracy. Respondents were more likely to pay for tests related to breast and prostate cancer, and were willing to alter lifestyle choices after receiving positive results.

More than 3,000 survivors of the WTC attacks experience long-term post-traumatic stress disorder

Researchers found that nearly 95.6% of 3,271 civilian WTC survivors reported posttraumatic stress symptoms and 15% screened positive for PTSD two years after the disaster. The study identified five predictors of PTSD: late evacuation initiation, high floor exposure, dust cloud exposure, personal horror, and employer fatalities.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Epidemiology·DateJan 7, 2011

A pesky bacterial slime reveals its survival secrets

Scientists at Harvard University have made a groundbreaking discovery about biofilm colonies, which exhibit an unprecedented ability to repel liquids and vapors. The researchers believe that the secret to their resiliency lies in their unique liquid-repellent surface.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateJan 7, 2011

Evidence lacking for widespread use of costly antipsychotic drugs, says Stanford researcher

A new study by Stanford researchers found that many prescriptions for atypical antipsychotic medications lack strong evidence, yet these drugs can cause serious side effects like weight gain, diabetes, and heart disease. The study also identified a significant amount of off-label use, with $6 billion spent on such prescriptions in 2008.

SourceStanford Medicine·JournalPharmacoepidemiology and Drug Safety·DateJan 7, 2011

Bendy tubes get around

Rice University researchers settle a long-standing controversy in polymer dynamics by proving that flexibility enhances the mobility of stiff filaments. The study shows that nanotubes and other fine filaments can navigate through crowded environments and fixed networks with ease, paving the way for new sensing technologies.

SourceRice University·JournalScience·DateJan 7, 2011

Link between signaling molecules could point way to therapies for epilepsy, stroke, other diseases

Scientists from UT Health Science Center San Antonio discovered a relationship between phosphoinositide kinases and calcium ions in nerve cells, which could lead to treatments for neurological disorders. The study's findings have implications for epilepsy, stroke, dementia, hypertension, mental illness, and other diseases.

SourceUniversity of Texas Health Science Center at San Antonio·JournalJournal of Biological Chemistry·DateJan 7, 2011

Blame the 'chaperone'

A Jackson Laboratory research team has identified a mutation in a gene essential for correct protein-processing, which disrupts cellular development and growth. The study found that defects in the chaperone proteins lead to photoreceptor degeneration, central nervous system abnormalities, and male infertility.

SourceJackson Laboratory·JournalJournal of Biological Chemistry·DateJan 7, 2011

Secondhand television exposure linked to eating disorders

A Harvard Medical School study found that indirect media exposure, such as friends' TV viewing habits, is a significant factor in eating disorder symptoms among adolescent girls in Fiji. Social network exposure was linked to a 60% increase in high-level eating disorder symptoms, independent of individual viewing habits.

SourceHarvard Medical School·JournalThe British Journal of Psychiatry·DateJan 6, 2011

School-based interventions for obesity

A US study analyzed 26 school-based nutrition interventions, revealing that classroom nutrition education and parental involvement were the most commonly used components. The study emphasizes the importance of synthesizing findings to inform research and program development for effective childhood obesity prevention.

SourceElsevier Health Sciences·JournalJournal of Nutrition Education and Behavior·DateJan 6, 2011

Standing tall is key for success in 2011

According to the study, posture plays a crucial role in determining whether people act as though they are really in charge. Adopting an expansive body posture activates a sense of power that produces behavioral changes independent of actual rank or hierarchical role in an organization. In contrast, recalling an experience of being in a...

SourceAssociation for Psychological Science·JournalPsychological Science·DateJan 6, 2011

The hunt for the lunar core

Researchers at Arizona State University have discovered a core with an iron-rich center, resembling Earth's core, using array processing techniques on Apollo seismic data. The discovery sheds light on the lunar interior's composition and structure, providing insights into the Moon's ancient origins.

SourceArizona State University·JournalScience·DateJan 6, 2011

Drinking recycled water?

Researchers develop method to treat stormwater in constructed wetland and store it in an aquifer, producing near potable water after treatment. The study demonstrates potential for sustainable water recycling through managed aquifer recharge schemes.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJan 6, 2011

Loss of gene promotes brain-tumor development, reduces survival, study finds

A recent study published in the New England Journal of Medicine found that losing the NFKBIA gene promotes glioblastoma multiforme growth and reduces survival. Restoring this gene may improve survival for certain patients with glioblastoma, as it inhibits tumor cell growth and increases sensitivity to chemotherapy.

SourceOhio State University Wexner Medical Center·JournalNew England Journal of Medicine·DateJan 6, 2011

Carbon swap bank to beat climate change

A carbon swap bank could lead to genuine reductions in carbon dioxide emissions, according to Australian researchers. The concept allows for direct deposits of sequestered carbon and withdrawals of emission rights, bypassing issues with accurate measurement and international regulation.

SourceInderscience Publishers·JournalInterdisciplinary Environmental Review·DateJan 6, 2011