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Science News Archive September 2009 - Page 19


Page 19 of 24

Using insects to test for drug safety

Researchers use insects like fruit flies and moths to test new drugs, reducing animal testing by up to 90% and speeding up results. The study finds that insect immune cells are structurally and functionally similar to those in mammals, offering a promising alternative for drug development.

New genomic model defines microbes by diet -- provides tool for tracking environmental change

A new genomic model defines microorganisms by their dietary habits, providing a tool for tracking environmental changes. The researchers analyzed the genomes of two bacteria with distinct lifestyles and developed a predictive model that successfully identified the habitats of dozens of bacterial samples.

SourceDOE/Joint Genome Institute·JournalProceedings of the National Academy of Sciences·DateSep 7, 2009

Small molecule inhibits pathology associated with myotonic dystrophy type 1

Researchers at the University of Illinois have designed a small molecule that blocks an aberrant pathway associated with myotonic dystrophy type 1. The new compound, Ligand 1, binds tightly to its target, preventing the MBNL protein from binding to RNA and easing symptoms of the disease.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateSep 7, 2009

Designing probiotics that ambush gut pathogens

Researchers have designed probiotics that can bind toxins in the gut, preventing them from interacting with host intestinal cells. These receptor-mimic probiotics offer a promising treatment for diseases such as cholera and traveller's diarrhoea, and may also be used to prevent outbreaks following natural disasters.

Stimuli for clinical research

The DFG has established five new Clinical Research Units to study highly topical medical issues such as bowel cancer metastases and hormone-related obesity. The units aim to develop individual forms of treatment for conditions like glomerulonephritis and improve diagnostic strategies,

Money won't buy happiness

Researchers found that poverty alone does not define an individual's overall well-being and that many qualities and attributes need to be considered when designing social programs. Only 24% of people classified as 'poor' reported low life satisfaction, while 18% of those not considered 'poor' also experienced low life satisfaction.

SourceSpringer·JournalApplied Research in Quality of Life·DateSep 7, 2009

Using waste to recover waste uranium

Scientists have recovered uranium from polluted waters using bacteria and inositol phosphate, a cheap waste material. The process is economically viable, especially as the world price of uranium is likely to increase, offering an environmental protection benefit.

Making more efficient fuel cells

Researchers have discovered a strain of bacteria with pilin proteins that can conduct electricity, leading to increased power output in microbial fuel cells. This breakthrough could enable the use of microbial fuel cells in remote environments and monitoring devices, such as ocean floor sensors, to convert waste into electricity.

Making bacteria make useful proteins

Researchers at the University of British Columbia have developed a system that turns harmless bacterium Caulobacter crescentus into a protein production factory, making useful proteins for vaccines and therapeutic purposes. The technology could be used to manufacture HIV-blocking agents cheaply and with minimal expertise.

MicroRNAs circulating in blood show promise as biomarkers to detect pancreatic cancer

Researchers at the University of Texas M. D. Anderson Cancer Center have identified four microRNAs that can accurately detect pancreatic cancer and pre-invasive lesions. The study found that these microRNAs are overexpressed in precursor lesions leading to full-blown pancreatic cancer, offering a promising approach for early detection.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalCancer Prevention Research·DateSep 4, 2009

Biophysical Society names 2010 award recipients

The Biophysical Society has named eight award recipients for their groundbreaking work in biophysics. The winners include Tom Rapoport, James Hamilton, and S. Walter Englander, who will receive prestigious awards for their contributions to fields such as protein transport, lipid biology, and single molecule biology.

Bringing harmony to electronic waste disposal

The global e-waste problem requires harmonization of disposal and recycling standards across national borders to effectively address the issue. The use of outdated electronic devices poses significant risks to human health and the environment, with 20-50 million tonnes of e-waste generated annually.

SourceInderscience Publishers·JournalInternational Journal of Environmental Engineering·DateSep 4, 2009

U of T researchers identify protein

Researchers at the University of Toronto have identified a protein called nSR100 that controls alternative splicing events in genes critical to nervous system formation. This discovery could provide new insights into brain complexity and neurodegenerative diseases like Alzheimer's.

SourceUniversity of Toronto·JournalCell·DateSep 4, 2009