Add BrightSurf on Google Email

Science News Archive 2008 - Page 60


Page 60 of 240

C. difficile and antibiotics not necessarily linked

A new study by Dr. Sandra Dial challenges the long-held assumption that antibiotic use is always a precursor to C. difficile infections. Researchers found that approximately 53% of community-acquired C. difficile infections were not related to antibiotic use, highlighting the need for further investigation into other risk factors.

SourceMcGill University Health Centre·JournalCanadian Medical Association Journal·DateOct 6, 2008

Study finds genetic variant plays role in cleft lip

Researchers have identified a genetic variant associated with isolated cleft lip, which affects approximately one in five cases. The study found that the variant disrupts proper expression of the IRF6 gene, leading to disruptions in AP2 binding and contributing to the development of cleft lip.

SourceUniversity of Iowa·JournalNature Genetics·DateOct 6, 2008

Fuzziness on the road to physics' grand unification theory

Theoretical physicists led by the University of Oregon's Stephen Hsu have found indications that grand unified theories may be merging into a single unified field. However, their research also suggests that this process could be slowed down or blocked by quantum fluctuations in space-time, making it more challenging to detect.

SourceUniversity of Oregon·JournalPhysical Review Letters·DateOct 6, 2008

JDRF funded study links 'hygiene hypothesis' to diabetes prevention

A JDRF-funded study suggests that exposure to certain bacteria may provide protection against developing type 1 diabetes. Researchers found that mice exposed to these harmless microbes had a lower risk of autoimmune disorders. The findings lend support to the 'hygiene hypothesis' and may lead to new therapeutic approaches for prevention.

SourceJDRF·JournalNature·DateOct 6, 2008

Early-stage gene transcription creates access to DNA

Researchers have discovered a novel mechanism in gene expression where non-coding RNAs create access to DNA, allowing transcriptional activation proteins to initiate gene expression. This process involves the transient synthesis of non-coding RNAs that unfurl tightly wound DNA, enabling gene expression.

SourceBoston College·JournalNature·DateOct 6, 2008

Flu vaccine not associated with reduced hospitalizations or outpatient visits among young children

A recent study published in Archives of Pediatrics & Adolescent Medicine found that the flu vaccine was not associated with reduced hospitalizations or outpatient visits among children under 5. The mismatch between the strains of virus in the vaccine and circulating strains may have contributed to this outcome.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateOct 6, 2008

Free drug samples carry risks for children

A study by Lifespan and Hasbro Children's Hospital found that nearly one in 10 American children received free drug samples in 2004. The top four most frequently distributed medications have significant new safety concerns, including schedule II controlled substances that carry high potential for abuse.

SourceLifespan·JournalPEDIATRICS·DateOct 6, 2008

Anti-cancer drug prevents, reverses cardiovascular damage in mouse model of premature aging disorder

Researchers have found that an experimental anti-cancer drug can prevent and reverse cardiovascular damage in a mouse model of progeria, a rare genetic disorder causing human premature aging. The study suggests that the drug may also have potential in treating other forms of coronary artery disease.

SourceNIH/National Human Genome Research Institute·JournalProceedings of the National Academy of Sciences·DateOct 6, 2008

Mayo Clinic study tackles labeling errors

A Mayo Clinic study implemented a radio-frequency identification system to track biopsy specimens and automate identification. The initiative resulted in a significant reduction of specimen-labeling errors, from 765 in 2007 to 47 in 2008. The new labeling system improved safety and quality efforts in specimen management.