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Science News Archive April 2010 - Page 12


Page 12 of 24

The remarkable effects of fat loss on the immune system

A recent study published in the Journal of Clinical Endocrinology Metabolism found that modest weight loss can reverse many of the damaging changes seen in immune cells of obese people. This reversal is achieved through an 80% reduction of pro-inflammatory T-helper cells and reduced activation of other circulating immune cells.

SourceResearch Australia·JournalThe Journal of Clinical Endocrinology & Metabolism·DateApr 19, 2010

Study suggests indoor tanning may be an addictive behavior

A recent study suggests that indoor tanning facilities may be associated with addiction-like behavior, including anxiety symptoms and increased substance use. The research found that individuals who frequently tan indoors were more likely to meet criteria for tanning addiction and report symptoms of anxiety.

SourceJAMA Network·JournalArchives of Dermatology·DateApr 19, 2010

Key brain regions talk directly with each other, say Pitt scientists

Researchers at the University of Pittsburgh have found evidence that the basal ganglia and cerebellum are linked together to form an integrated functional network. This discovery has important implications for understanding Parkinson's disease and dystonia, and may lead to new treatment approaches.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalProceedings of the National Academy of Sciences·DateApr 19, 2010

New insight into Parkinson's disease

Parkin and PINK1 genes play a critical role in Parkinson's disease. The study found that PINK1 is rapidly degraded under healthy conditions, but its accumulation stabilizes at low membrane potential. Parkin is recruited to mitochondria with low potential to dispose of damaged organelles.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateApr 19, 2010

Aged female patients taking low-dose aspirin should be paid special attention

Researchers identified age greater than 70 years as a significant risk factor for peptic ulcer in female patients taking low-dose aspirin. The study suggests a future strategy for prevention of LDA-associated gastroduodenal mucosal injury. A history of peptic ulcer was also found to be the risk factor common to both sexes.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateApr 19, 2010

How do older people use e-mail?

Researchers studied how older adults (64-80 years) interact with email systems, finding they primarily use it for communication within a restricted social circle. The study identified key factors influencing email design, including user independence and simplified interfaces, to improve accessibility for this demographic.

SourceSpanish Foundation for Science and Technology·JournalInternational Journal of Human-Computer Studies·DateApr 19, 2010

New explanation for cardiac arrest

A new disorder linked to heart problems has been discovered, characterized by an inability to form initial sugar molecules, leading to energy crisis and cardiac arrest. The study reveals that muscle cells can adjust and find alternative ways to source energy, but a cure is not yet available.

SourceUniversity of Gothenburg·JournalNew England Journal of Medicine·DateApr 19, 2010

Cardiff takes a step towards quantum computing

Researchers at Cardiff University have successfully conducted experiments with photons, showing that pairs increase oscillation frequency and agreeing with theoretical predictions. The findings have long-term implications for information technology, including the potential to build logical systems based on quantum interactions.

SourceCardiff University·JournalNature Materials·DateApr 19, 2010

Secondhand smoke exposure associated with chronic sinus disease

A study of 306 non-smoking patients found that those exposed to secondhand smoke at home, work, and social functions had a higher risk of developing chronic rhinosinusitis. Approximately 40% of cases were attributed to secondhand smoke exposure, highlighting the need for eliminating this public health problem.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateApr 19, 2010

Ethnic groups show different cardiovascular risk profiles

A new study finds that ethnic groups in Ontario have distinct cardiovascular risk profiles, with Chinese having the lowest prevalence of heart disease (3.2%) and South Asians having the highest (5.2%). Smoking and obesity are more prevalent among white populations, while diabetes and hypertension affect South Asians and black populatio...

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateApr 19, 2010

Study reveals a mechanism for mate selection

Researchers from Université de Montrêl have discovered a molecular switch that enables yeast to make critical decisions about its fate, including choosing a suitable mate. This study provides valuable insights into the mechanisms underlying sexual mate selection and has potential applications in understanding human development and disease

SourceUniversity of Montreal·JournalNature·DateApr 18, 2010

Improving network firewalls

Researchers have developed a method to analyze corporate firewall logs to identify errors and omissions. This approach, called traffic mining, can determine the actual rules applied by firewalls to incoming and outgoing network traffic.

SourceInderscience Publishers·JournalInternational Journal of Internet Protocol Technology·DateApr 16, 2010

Lunar polar craters may be electrified

Researchers found that solar wind flowing over lunar polar craters creates a complex electrical environment, affecting surface chemistry and dust cling. The team's calculations reveal that the inside walls and floor acquire a negative electric charge due to electron-ion separation, posing challenges for future exploration.

Diagnosis murder

A study by researchers at The University of Nottingham reveals the devastating impact of supermassive black holes on galaxies. These behemoths strip massive galaxies of cool gases required for new stars, causing ageing red giants to dwindle in existence.

Chinese scientists discover marker indicating the developmental potential of stem cells

Researchers have identified a cluster of small RNA that correlates with pluripotency in induced-pluripotent stem cells, enabling the distinction of more viable cell lines. This discovery is expected to improve the production of full pluripotent iPS cells and their application in disease therapy.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateApr 16, 2010

You've come a long way on film, baby!

The rise of female-driven movies marks a significant shift in Hollywood, with films like Precious and Sex and the City receiving critical acclaim. This change is attributed to a shift in identity from traditional 'chick flicks' to more topical and relevant stories for modern women.

SourceUniversity of Alberta·JournalThe Journal of Popular Culture·DateApr 16, 2010