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Science News for December 11, 2011


Rare genetic disorder provides clues to development of the pancreas

Researchers discovered a mutation in the GATA6 gene linked to pancreatic agenesis, a rare condition where the pancreas fails to develop. This finding provides insight into how stem cells can be programmed to become pancreatic cells, potentially leading to new treatments for type 1 diabetes.

SourceWellcome Trust·JournalNature Genetics·DateDec 11, 2011

Scar findings could lead to new therapies, Stanford researchers say

Researchers at Stanford University School of Medicine have identified the molecular pathway through which physical force contributes to scarring in mice. They found that blocking this enzyme can reduce inflammation and fibrosis, offering a potential new approach for treating fibrotic diseases such as pulmonary fibrosis and rheumatoid a...

SourceStanford Medicine·JournalNature Medicine·DateDec 11, 2011
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B cell receptor inhibitor causes chronic lymphocytic leukemia remission

A Phase I/II clinical trial for patients with relapsed or resistant chronic lymphocytic leukemia (CLL) showed impressive potential for PCI-32765, a B cell receptor inhibitor, achieving durable remissions and minimal toxicity. The study demonstrated six-month progression-free survival of 90-92%.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateDec 11, 2011
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A lake fauna in a shot-glass

A Danish research team has developed a new DNA-based method to monitor rare and threatened animal species in freshwater environments, showing it can be effective even for extremely rare populations. The study found a clear correlation between DNA detection and population density, enabling the estimation of population sizes.

SourceUniversity of Copenhagen·JournalMolecular Ecology·DateDec 11, 2011

The world's smallest steam engine

Researchers develop tiny Stirling engine with a plastic bead that performs work and runs with the same efficiency as a macroscopic heat engine under full load. Microscopic processes cause the machine to run rough due to collisions with surrounding water molecules.

SourceMax-Planck-Gesellschaft·JournalNature Physics·DateDec 11, 2011

Scripps research scientists elevate little-studied cellular mechanism to potential drug target

Scientists have elevated little-studied cellular mechanism sulfenylation to potential drug target by showing its importance in cell signaling and cancer. A new chemical probe allowed detection of minute differences in sulfenylation rates, revealing a key role for hydrogen peroxide in activating epidermal growth factor receptor.

SourceScripps Research Institute·JournalNature Chemical Biology·DateDec 11, 2011
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