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Science News Archive 2006 - Page 105


Page 105 of 178

Where we change our mind

Researchers Wako Yoshida and Shin Ishii explored how different cortical regions function in solving partially observable decision-making problems. They found that the anterior prefrontal cortex is involved in belief maintenance, while the medial prefrontal cortex is involved in belief back-track processes.

SourceCell Press·JournalNeuron·DateMay 31, 2006

Vaccinate or not? Treat or not? Study looks at tricky health decisions

A new study explores how people make medical decisions, revealing that stepping into others' shoes can lead to better choices. By considering multiple perspectives, including those of doctors, parents, and medical directors, participants made treatment decisions that were more informed than their own self-interest would suggest.

SourceMichigan Medicine - University of Michigan·JournalJournal of General Internal Medicine·DateMay 31, 2006

New mechanism explains glucose effect on wakefulness

A new mechanism explains how glucose inhibits neurons that regulate wakefulness, revealing a role for previously unknown potassium ion channels. Glucose levels affect the firing rate of these neurons, shedding light on cellular pathways regulating vigilance states and energy balance.

SourceCell Press·JournalNeuron·DateMay 31, 2006

Sectarianism is problem for religious right political partnerships according to new survey at UCSD

A new survey at UCSD reveals that sectarianism in conservative religious groups holds back coalition formation on the right. The study found that members of these groups who favor a larger role for religious leaders in politics are less sectarian, bringing good news for supporters of the religious right.

SourceUniversity of California - San Diego·JournalJournal for the Scientific Study of Religion·DateMay 31, 2006

Chronic stress, depression and cortisol levels are potential risk indicators for periodontal disease

A study by the American Academy of Periodontology reveals that chronic stress, depression, and elevated cortisol levels are potential risk indicators for periodontal disease in adults aged 50 and older. Short-term psychological stress was linked to elevated plaque levels, while long-term physical stress was associated with gingivitis.

SourceAmerican Academy of Periodontology·JournalJournal of Periodontology·DateMay 31, 2006

Lurking lung cancer alleles

A recent study identified 64 genetic variants associated with lung cancer development, including changes in proteins expressed by the genes. These findings suggest that a complex interplay between genetic and environmental factors contributes to lung cancer susceptibility, while tobacco smoke remains the leading risk factor.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateMay 31, 2006

Trial success for diabetic nerve therapy

A novel therapeutic approach has been discovered by the University of Manchester team, using a DNA-binding protein to stimulate genes and promote nerve growth. The preclinical results have been encouraging, with initial-stage clinical trials in the US showing promising progress in managing diabetic neuropathy.

SourceUniversity of Manchester·JournalDiabetes·DateMay 30, 2006

Smoking messages miss Asian Americans

A new study reveals that Korean-American smokers often prioritize social benefits over health risks, making it difficult for them to quit. The study suggests that culturally tailored programs are necessary to address these issues, taking into account language, intent, and social dynamics within the Asian American community.

SourceTemple University·JournalAddictive Behaviors·DateMay 30, 2006

How to cut energy waste in China, India, Brazil said crucial to forestalling climate change

Experts estimate that cost-effective retrofits could reduce energy use in China, India, and Brazil by at least 25%, while advanced technologies could reduce projected CO2 emission growth by 16%. Unlocking today's potential savings requires simple, highly cost-effective renovation projects to identify and eliminate energy waste.

A catalogue of proteins

Researchers have identified over 1400 proteins in liver cells of mice, mapping their locations in ten different compartments. The study's findings show that around 40% of these proteins also appear in other cell organs, suggesting a high degree of conservation across species.

SourceMax-Planck-Gesellschaft·JournalCell·DateMay 29, 2006

A tumour suppressor in mice and men

A team of researchers from Munich discovered a cellular mechanism that protects against tumours by controlling the Bcl-3 oncogene. The study identified Cyld as a potential tumour suppressor, which can accumulate around the nucleus and prevent Bcl-3 from entering it.

SourceMax-Planck-Gesellschaft·JournalCell·DateMay 29, 2006

Nervous inhibitions

Scientists find VIAAT enables joint storage of GABA and glycine in vesicles, refuting dogma that GABA release is crucial for nerve cell growth. VIAAT mutant mice develop normally despite GABA and glycine release elimination.

SourceMax-Planck-Gesellschaft·JournalNeuron·DateMay 29, 2006

Dartmouth study finds that arsenic inhibits DNA repair

A Dartmouth study found that arsenic in drinking water can inhibit DNA repair, leading to increased cancer risks. The researchers measured arsenic levels in urine and toenails of participants in New Hampshire and Mexico, and found a correlation between high arsenic levels and impaired DNA repair.

SourceDartmouth College·JournalEnvironmental Health Perspectives·DateMay 26, 2006