Add BrightSurf on Google Email

Science News for June 9, 2008


Morther's obesity a factor in newborn deaths for blacks, not whites, new study reports

A new study published in the journal Obstetrics & Gynecology reports a significant disparity in infant mortality rates between black and white mothers, with obese black mothers facing a higher risk of newborn death. Researchers analyzed over 1.4 million births and found that high BMI was an independent risk factor for neonatal mortalit...

SourceUniversity of South Florida (USF Health)·JournalObstetrics and Gynecology·DateJun 9, 2008

Family history and screening for colorectal cancer

A new study found that African Americans with a family history of colorectal cancer are less likely to be screened, contrary to expectations. Regular screening is crucial for early detection and prevention of colorectal cancer, which affects African Americans disproportionately due to their high incidence and mortality rates.

SourceAmerican Cancer Society·JournalCancer·DateJun 9, 2008

ADHD an advantage for nomadic tribesmen?

A study of Kenyan nomads found that an ADHD-associated gene variant is linked to better health in the nomadic population, but malnourishment in settled individuals. This suggests that behavior differences associated with ADHD may be more or less effective depending on the environment.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateJun 9, 2008

Ethical implications of modifying lethal injection protocols

A team of scholars argues that modifying lethal injection protocols in US states could be tantamount to experimenting on prisoners without their consent. Guidelines for human research involving humans were developed to prevent exploitation of vulnerable populations like death row inmates, but many states fail to follow these guidelines.

SourcePLOS·JournalPLOS Medicine·DateJun 9, 2008

Study shows how cocaine impairs fetal brain development

A study published in PLOS Medicine found that cocaine's byproduct inhibits nerve cell development by interfering with a specific protein, cyclin A. Treatment of pregnant rats with cimetidine counteracted this inhibition, suggesting potential treatments to protect fetal brain development.

SourcePLOS·JournalPLOS Medicine·DateJun 9, 2008

Phase 3 results for alogliptin

Alogliptin demonstrated significant reductions in hemoglobin A1c (HbA1c) levels in patients with type 2 diabetes, particularly when used as monotherapy or added to existing oral anti-diabetic treatments. The study results suggest alogliptin is a effective treatment option for patients with inadequate blood sugar control.

How the brain separates audio signals from noise

A new study published in PLoS Biology uses magnetoencephalography to record brain activity as humans detect target tones in a complex auditory scene. The researchers find that the awareness of these sounds correlates with activity in high-level auditory regions, not the initial cortical region where sound is processed. This novel study...

SourcePLOS·JournalPLOS Biology·DateJun 9, 2008

World's oldest woman had normal brain

A unique case study found a 115-year-old woman had an essentially normal brain with little evidence of Alzheimer's disease. The findings question the inevitability of cognitive decline in elderly individuals and suggest potential for preserving brain function.

SourceElsevier·JournalNeurobiology of Aging·DateJun 9, 2008

Lost in translation

A recent study found that language difficulties added significant misunderstandings about genetic disorders among the Bangladeshi community in Britain, particularly when it comes to testing and screening decisions. The research highlights the need for greater understanding of language barriers and their impact on patient care.

Prejudice or perception? New U of T research

Researchers found that individuals who expect to be treated with prejudice are more likely to perceive rejection and contempt on faces expressing similar emotions. This study highlights the importance of considering both sides' expectations and perceptions in improving communications between diverse populations.

SourceUniversity of Toronto·JournalJournal of Experimental Social Psychology·DateJun 9, 2008

Elsevier launches Bioscience Hypotheses

Bioscience Hypotheses is a new journal focused on stimulating innovation through radical hypotheses. The journal aims to publish papers that deliver new insight into biology and provide testable conclusions.

SourceElsevier·JournalBioscience Hypotheses·DateJun 9, 2008

Potential biomarkers for pancreatic cancer identified

Researchers from Fred Hutchinson Cancer Research Center identified five proteins that may be useful tools in detecting early-stage pancreatic tumors. The panel of proteins discriminated between pancreatic cancer cases and controls in blood specimens, suggesting a potential role in early detection.

SourcePLOS·JournalPLOS Medicine·DateJun 9, 2008

Arsenic and new rice

Researchers have discovered a family of transporters called NIPs that can move arsenite across plant cell membranes, reducing toxic arsenic content. The findings suggest that some NIPs can even clear cells of toxic arsenite, potentially enabling plant detoxification.

SourceBMC (BioMed Central)·JournalBMC Biology·DateJun 9, 2008

Microenvironment a main driver of aggressive multi-lineage leukemia disease type

Scientists at Cincinnati Children's Hospital Medical Center have discovered that the microenvironment of blood-forming tissues plays a critical role in promoting leukemia progression and determining disease type in mixed lineage leukemias (MLL). The study, which used human-based MLL models in mice, suggests that disrupting the protein ...

Tell me by the way I walk

Researchers in India have developed a comprehensive framework for gait recognition by computer, using statistical analysis and height measurements to classify individuals. The system can identify threats from a considerable distance, giving personnel more time to react before a suspect becomes a real threat.

SourceInderscience Publishers·JournalInternational Journal of Biometrics·DateJun 9, 2008

News tips from ACS Nano

New research from ACS Nano explores innovative applications of nanotechnology, such as increasing power conversion efficiencies in solar cells and targeting nanoparticles for gene delivery. The journal also discusses rapid toxicity evaluation methods and the use of nanotubes with nanomotors to enhance speed.

SourceAmerican Chemical Society·JournalACS Nano·DateJun 9, 2008

Gene variation linked to earlier onset of Alzheimer's symptoms

Researchers identified a genetic variation associated with an earlier age of onset in Alzheimer's disease, which affects the brain's tau protein levels. The study suggests that these variations lead to higher tau levels in cerebrospinal fluid and earlier cognitive problems once amyloid plaques form.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateJun 9, 2008