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Science News Archive August 2009 - Page 9


Page 9 of 22

Novel polymer could improve protein-based drugs

Researchers at Duke University have developed a new approach to attach polymers to proteins, improving their circulation and efficacy in animal models. The new conjugates showed longer half-lives and remained active for up to 18 hours, potentially reducing toxic effects.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateAug 19, 2009

A safe approach to nanotechnology

Researchers developed a non-toxic method to synthesize zinc oxide nanorods using water and ultrasound. The approach produces uniform nanorods of 30-100 nm in diameter, suitable for large-scale production. It enables safe use in medical applications, food products, dentistry, and electronics.

SourceInderscience Publishers·JournalInternational Journal of Nanoparticles·DateAug 19, 2009

Harvard study reveals taxing job-based health benefits would hit working families hardest

A new Harvard study finds that taxing employer-sponsored health insurance would disproportionately affect low-income families, taking up to 18.3% of their income, while high-income families face only a 2.7% tax rate. Single-payer national health insurance is proposed as a more affordable option for universal coverage.

SourcePhysicians for a National Health Program·JournalNew England Journal of Medicine·DateAug 19, 2009

Shocking state of US health care shows achievement of universal health coverage not connected to GDP

Despite being one of the wealthiest nations, the US struggles with health coverage, with an estimated 47 million citizens lacking any coverage. In contrast, poorer countries like Costa Rica and Cuba have achieved impressive prepaid coverage. The authors argue that universal health financing schemes can improve social sectors like educa...

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 19, 2009

Rice tapped for role in computing research center

Rice University will lead a multi-university Center for Domain-Specific Computing with UCLA, Ohio State, and UC Santa Barbara to develop high-performance computing for medical imaging. The project aims to create energy-efficient, cost-effective solutions for preventive, diagnostic, and therapeutic procedures.

Kinetic variable most useful for identifying malignant MRI-detected breast lesions identified

Researchers found that the 'washout' curve type is most predictive of malignancy, with 45.7% of lesions with this pattern being malignant compared to 20% with a plateau and 13.3% with persistent enhancement. The study suggests that kinetic features in breast MRI assessment can help determine whether a lesion needs biopsying.

SourceAmerican College of Radiology·JournalAmerican Journal of Roentgenology·DateAug 19, 2009

Living longer and happier

MU researchers discovered a 'longevity' gene that energizes mice during exercise, potentially applicable to humans. The gene removes toxic free radicals from mitochondria, improving life quality and treating diseases like muscular dystrophy and diabetes.

SourceUniversity of Missouri-Columbia·JournalPLOS ONE·DateAug 19, 2009

Flying by the skin of our teeth

A study by Prof. Herzl Chai and colleagues reveals that teeth's wavy hierarchy and micro-cracking mechanism can inspire stronger composites for planes and aerospace engineering. Dental specialists can also use the research to create smarter crowns with improved durability.

SourceAmerican Friends of Tel Aviv University·JournalProceedings of the National Academy of Sciences·DateAug 19, 2009

Pulmonary CT angiography identifies disease and injury beyond the pulmonary arteries in children

A study published in the American Journal of Roentgenology found that CT angiography can identify diseases and injuries beyond the pulmonary arteries in children. Researchers evaluated 89 CTA exams with suspected pulmonary embolism and found alternative diagnoses in 59% of cases, including pneumonia and atelectasis.

SourceAmerican College of Radiology·JournalAmerican Journal of Roentgenology·DateAug 19, 2009

Targeted investments in climate science could present enormous economic savings across the globe

New research by the UK's National Centre for Atmospheric Science suggests that targeted investments in climate science can improve climate predictions by 10-20% globally and up to 20% in specific regions. This could lead to significant economic savings by reducing the costs of adapting to a changing climate.

SourceThe National Centre for Atmospheric Science·JournalBulletin of the American Meteorological Society·DateAug 19, 2009

Pitt scientists find intrinsic changes in protein shape influence drug binding

Researchers at the University of Pittsburgh School of Medicine have found that proteins have an intrinsic ability to change shape, allowing them to select the structure that permits the best binding. This discovery could lead to more effective treatment of diseases by designing compounds that target specific protein structures.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalProceedings of the National Academy of Sciences·DateAug 19, 2009

Tumor size and level of visceral pleura invasion can impact survival of NSCLC patients

A recent study published in the Journal of Thoracic Oncology found that tumor size and level of visceral pleura invasion significantly impact the survival of non-small cell lung cancer (NSCLC) patients. Researchers analyzed data from over 9,700 surgical resection cases and divided patients into nine groups based on tumor size and VPI.

SourceInternational Association for the Study of Lung Cancer·JournalJournal of Thoracic Oncology·DateAug 19, 2009