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Science News Archive September 2014 - Page 10


Page 10 of 34

Study finds gallbladder surgery can wait

Researchers found that patients undergoing laparoscopic cholecystectomy during normal working hours were more likely to receive minimally invasive procedures. The study also revealed no significant differences in complication rates or length of stay between day and night surgeries.

The mechanics of tissue growth

Carnegie Mellon researchers found that mechanical processes, not just chemical signaling, are essential for cell communication during tissue growth. The study used a microfluidic control system to analyze cellular mechanics and revealed that disabling these connections impairs cell communication.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateSep 23, 2014

Search for better biofuels microbes leads to the human gut

A study published in the Proceedings of the National Academy of Sciences found that human gut microbes can digest fiber and ferment it into nutrients for human cells. The microbes appear to have enzymes that break down complex plant fiber components more efficiently than cow rumen microbes, which could aid in biofuels production.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateSep 23, 2014

Lack of sleep increases risk of failure in school

A Swedish study found that adolescents with sleep disturbance or short sleep duration are less likely to succeed academically. The research suggests that sleep may play a crucial role for adolescents' performance at school, with around 30% of participants reporting regular sleep problems.

SourceUppsala University·JournalSleep Medicine·DateSep 23, 2014

Nanotubes help healing hearts keep the beat

Researchers at Rice University created patches infused with conductive single-walled carbon nanotubes to overcome limitations in current patches, which hinder the transfer of electrical signals between cardiomyocytes. The patches can serve as full-thickness repairs without inducing abnormal cardiac rhythms.

SourceRice University·JournalACS Nano·DateSep 23, 2014

Immune system is key ally in cyberwar against cancer

Researchers at Rice University have developed a new two-step strategy for weakening cancer by harnessing the power of the immune system. The study found that alternating cycles of radiation or chemotherapy with immune-boosting treatments can alter the balance between cancer and the immune system, ultimately bringing the cancer to a wea...

SourceRice University·JournalProceedings of the National Academy of Sciences·DateSep 23, 2014

Priorities for research on pharmaceutical and personal care products in the environment

A recent study by the Society of Environmental Toxicology and Chemistry identified key knowledge gaps in understanding pharmaceutical and personal care product (PPCP) impacts on ecosystems and human health. The priority areas include research on human health exposure, as well as regional testing methods for measuring PPCPs in the envir...

SourceSociety of Environmental Toxicology and Chemistry·JournalIntegrated Environmental Assessment and Management·DateSep 22, 2014

Old drug may be key to new antibiotics

A new class of antibiotics could be developed using the anticonvulsant drug lamotrigine, which inhibits bacterial ribosome assembly. Researchers at McMaster University discovered that lamotrigine stops ribosomes from being created in bacteria, a breakthrough in tackling antibiotic resistance.

Think the system for paying US doctors is rigged to favor surgeons? Study may surprise you

A new study reveals that the US physician payment system is not inherently biased towards surgeons and procedure-performing doctors. The difference in pay between specialties arises mostly from differences in the number of minutes allocated to each service by Medicare's formula, which takes into account estimated times for work.

SourceMichigan Medicine - University of Michigan·JournalAnnals of Surgery·DateSep 22, 2014

The accelerator of molecular motors

Researchers identify Pex22p module as key component in peroxisomal Ub machinery, boosting enzyme import and degradation of pollutants. This discovery sheds light on peroxisomal disorders like Zellweger syndrome and highlights the importance of reevaluating familiar proteins.

SourceRuhr-University Bochum·JournalPLOS ONE·DateSep 22, 2014

Higher risk of heart disease for South Asians in Canada

A study published in the Canadian Medical Association Journal found that South Asians in Canada have a higher prevalence of heart disease, with rates of death from coronary artery disease being 42% for men and 29% for women. The study also highlighted the need for standardized surveillance systems to monitor non-communicable diseases a...

SourceMcMaster University·JournalCanadian Medical Association Journal·DateSep 22, 2014

Online ratings influence parents' choices of physicians for their children

A U-M study found that almost three-quarters of parents are aware of online rating sites and over a quarter use them to choose healthcare providers for their children. The researchers also discovered that positive online ratings strongly influenced the likelihood of selecting a child's physician, while negative reviews had little impact.

Reversing the effects of pulmonary fibrosis

Researchers at Yale University have discovered a microRNA mimic, miR-29, that can reverse the effects of pulmonary fibrosis in mouse models. The treatment uses intravenous delivery and has shown sustained effects on lung tissue. Further studies are needed to evaluate its therapeutic potential for human idiopathic pulmonary fibrosis.

SourceYale University·JournalEMBO Molecular Medicine·DateSep 22, 2014

Food affected by Fukushima disaster harms animals, even at low-levels of radiation

A recent study published in BMC Evolutionary Biology found that food affected by the Fukushima nuclear disaster harms animals, even at low levels of radiation. Researchers fed pale blue grass butterflies leaves collected from areas varying distance from the disaster site and investigated the effects on the next generation. The study sh...

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateSep 22, 2014

New rules for anticancer vaccines

Researchers have identified a better measure of predicting cancer neoepitopes, which are specific protein sequences recognized by immune cells. This new approach has the potential to improve current methods for generating anticancer vaccines, increasing their effectiveness in combating cancer.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateSep 22, 2014

Hold on, tiger mom

A study published in the Journal of Family Issues found that less supportive and punitive Chinese parenting techniques can lead to negative outcomes in children, including low self-esteem and school adjustment difficulties. The research contradicts the idea that traditional 'Chinese' upbringing is superior and highlights the importance...

SourceUniversity of California - Riverside·JournalJournal of Family Issues·DateSep 22, 2014