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Science News Archive 2008 - Page 44


Page 44 of 240

Methylmercury warning

Recent studies suggest that methylmercury can cause irreversible brain damage in unborn children at previously considered safe levels of exposure. Methylmercury toxicity is well-known, but its effects on the developing nervous system have been underestimated.

SourceInderscience Publishers·JournalInternational Journal of Environment and Health·DateOct 28, 2008

Green neighborhoods may reduce childhood obesity

A study published in the American Journal of Preventive Medicine found that children living in inner city neighborhoods with higher green space experienced lower weight gains compared to those in areas with less greenery. The researchers followed over 3800 children and found no correlation between physical activity levels and BMI changes.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateOct 28, 2008

Brain's 'hate circuit' identified

Researchers at UCL found a 'hate circuit' in the brain that is distinct from those related to love, fear, and aggression. The study reveals that the 'hate circuit' involves structures in the cortex and sub-cortex that are also activated by romantic love, but with a different pattern of activity.

SourceUniversity College London·JournalPLOS ONE·DateOct 28, 2008

Elderly fare better when included in decisions on treatment trade-offs

A study by Yale University researchers found that elderly patients with multiple medical conditions can make more informed treatment decisions when involved in the process. By prioritizing global outcomes such as length of life and symptom relief, these patients can maximize their desired outcome and minimize potential harm from medica...

SourceYale University·JournalJournal of the American Geriatrics Society·DateOct 28, 2008

Statin use associated with reduction in prostate specific antigen levels

A recent study found that statin use is associated with a decline in prostate-specific antigen (PSA) levels, suggesting potential benefits for prostate cancer screening and management. The study, which analyzed data from over 1,200 men, showed a median decline of 4.1% in PSA levels after starting statin therapy.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 28, 2008

Also in the Oct. 28 JNCI

Research found skewed X inactivation in women with BRCA1 gene mutations, associated with a later onset of breast or ovarian cancer. The Impact of Cancer scale was also refined and validated, providing a tool to measure long-term psychosocial impact on cancer survivors.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 28, 2008

New cell division mechanism discovered

Researchers at Uppsala University have identified a novel cell division mechanism in Sulfolobus acidocaldarius, which may provide insights into human cell biology and evolutionary history. The discovery of three genes that form a sharp band between chromosomes suggests a unique process for cell separation.

SourceUppsala University·JournalProceedings of the National Academy of Sciences·DateOct 28, 2008