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Science News Archive October 2007 - Page 3


Page 3 of 21

UGA researchers 1 step closer to elusive cancer vaccine

Researchers at the University of Georgia Cancer Center have synthesized a carbohydrate-based vaccine that successfully triggered a strong immune response to cancer cells in mice. The vaccine has shown promise in creating an antibody response that can kill cultured epithelial cells and stimulating an immune response in healthy mice.

SourceUniversity of Georgia·JournalNature Chemical Biology·DateOct 29, 2007

Efficient crowd control in bacterial colonies

A study published in PLoS Biology investigates how bacterial cell colonies develop and self-organize to address environmental challenges. The research reveals that bacterial cells can coordinate their growth and movement to improve access to nutrients and facilitate efficient escape from crowded areas.

SourcePLOS·JournalPLOS Biology·DateOct 29, 2007

1 size may not fit all

Researchers aim to determine who is at risk for colorectal cancer and tailor screening tests accordingly. Dr. Thomas F. Imperiale advocates for more targeted approaches, such as using easily accessible factors like age and family medical history.

SourceIndiana University·JournalGASTROENTEROLOGY·DateOct 29, 2007

Sight, sound processed together and earlier than previously thought

Researchers at Duke University Medical Center have discovered that auditory and visual information are integrated in the brain before being sent to the cortex. The findings suggest that hearing and vision may be more closely linked than previously believed, with implications for understanding how we perceive the world around us.

SourceDuke University Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 29, 2007

10 minutes of talking has a mental payoff

A University of Michigan study found that conversing with others for just 10 minutes can improve memory and cognitive function. The research suggests that social interaction is an effective way to boost mental abilities, comparable to traditional mental exercises.

SourceUniversity of Michigan·JournalPersonality and Social Psychology Bulletin·DateOct 29, 2007

Algorithm for mapping mild cognitive impairment

Researchers present a new framework for mapping mild cognitive impairment, including an online diagnostic algorithm. The framework characterizes different classifications of MCI and their patterns of etiology, cognitive decline, and clinical outcome.

SourcePLOS·JournalPLOS Medicine·DateOct 29, 2007

Dead clams tell many tales

A study by University of Chicago's Susan Kidwell reveals an inverse relationship between the extent of human impact and how well collections of dead shells reflect the current inhabitants of an ecosystem. This new tool can provide a deeper historical perspective on ecosystems, helping scientists understand the effects of human actions.

SourceUniversity of Chicago·JournalProceedings of the National Academy of Sciences·DateOct 29, 2007

Get in touch

Scientists at the Salk Institute report that ATM protein activation depends on both damaged DNA and surrounding flanking regions. This discovery reveals a new mechanism for efficient DNA repair, highlighting the importance of intact chromatin in activating the cellular response.

SourceSalk Institute·JournalNature Cell Biology·DateOct 29, 2007

Brain circuits that control hunger identified

A study by UCLA researchers has identified brain circuits involved in hunger that are influenced by leptin, a hormone produced by fat cells. Leptin supplementation reduced activation in regions linked to hunger while enhancing activation in regions linked to inhibition and satiety in three adults with congenital leptin deficiency.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateOct 29, 2007

New insights into inflammation in osteoarthritis

A study found that 82% of entheses have a synovio-entheseal complex (SEC), which is involved in triggering inflammation in OA. The SEC's formation is linked to fibrocartilage degeneration and cell clustering, suggesting a novel mechanism for synovial inflammation.

SourceWiley·JournalArthritis & Rheumatism·DateOct 29, 2007

Vital statistics: not vital enough

A lack of reliable national statistics on births, deaths, and causes of death hinders global health development. The authors of a recent study found that only a few developing countries have improved their civil registration systems in the past 50 years.

SourceThe Lancet_DELETED·JournalThe Lancet·DateOct 28, 2007

The way forward for vital statistics

A lack of civil registration systems and vital statistics in many low-income countries hinders evidence-based decision-making. The authors propose three options to tackle this challenge: advocating for government support, establishing an international body, and leveraging new funding flows.

SourceThe Lancet_DELETED·JournalThe Lancet·DateOct 28, 2007