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Science News Archive January 2010 - Page 6


Page 6 of 20

Researchers correct the record about behavior of important human protein tied to cancer

A study challenges the prevailing belief that a key human protein linked to cancer needs a partner to function, revealing it can initiate processes on its own. The researchers used high-resolution microscopy techniques to observe proteins in living cells and found that the protein's activation rate is directly linked to its nuclear entry.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateJan 25, 2010

Researchers trace effects of genetic defect in myotonic muscular dystrophy

A study published in Nature Structural & Molecular Biology reveals that a genetic mutation disrupts an array of metabolic pathways in muscle cells by affecting two key proteins. The loss of either protein accounts for most molecular abnormalities associated with the disease, while loss of both also seems to play an important role.

SourceUniversity of California - Santa Cruz·JournalNature Structural & Molecular Biology·DateJan 24, 2010

How 'random' lasers work

Researchers at the University of Utah have found that natural cavities in polymers can act like mirrors in light-emitting materials, generating 'random' lasers. This discovery could lead to new applications in cancer diagnosis and other fields.

SourceUniversity of Utah·JournalNature Physics·DateJan 24, 2010

Don't forget to eat your greens

A recent study found that chlorophyll and chlorophyllin can reverse the effects of aflatoxin poisoning by limiting its bioavailability. The research, led by DOE/Lawrence Livermore National Laboratory scientists, suggests that consuming greens may be a way to prevent long-term exposure to carcinogenic mycotoxins.

SourceDOE/Lawrence Livermore National Laboratory·JournalCancer Prevention Research·DateJan 22, 2010

CSHL study identifies potential way to reverse cancer cell metabolism and tumor growth

A study at Cold Spring Harbor Laboratory has identified three molecular factors that contribute to high levels of PK-M2 in cancer cells, which promotes rapid cell proliferation and tumor growth. The researchers found that forcing a reduction in the levels of these factors could reverse the Warburg effect and restore normal metabolism.

SourceCold Spring Harbor Laboratory·JournalProceedings of the National Academy of Sciences·DateJan 22, 2010

Scientists shed new light on walking

Researchers at Karolinska Institutet have created a genetically modified mouse that can walk when exposed to blue light. The study provides insight into the neural control of locomotion and has potential implications for treating spinal cord injuries.

SourceKarolinska Institutet·JournalNature Neuroscience·DateJan 22, 2010

Neuron connections seen in 3-D

Scientists have successfully imaged vesicles and filaments involved in neuronal communication, revealing crucial role of filamentous structures in regulating neurotransmitter release. The 3D images were obtained using electron cryotomography, a novel method that rapidly freezes cells while preserving biological structures.

SourceSpanish Foundation for Science and Technology·JournalJournal of Cell Biology·DateJan 22, 2010

For most outfielders, luck has nothing to do with catching flies

A study published in the Journal of Vision found that outfielders catch fly balls by tracking optical acceleration, rather than predicting the ball's trajectory. The research used a virtual environment to test three major theories of fly catching, and confirmed that baseball players continuously track the ball and run forward or backwa...

SourceBrown University·JournalJournal of Vision·DateJan 22, 2010

Moving through time

A study by University of Aberdeen researchers found that mentally traveling through time can physically move us. Engaging in chronesthesia, or mental time travel, resulted in movements corresponding to the metaphorical direction of time.

SourceAssociation for Psychological Science·JournalPsychological Science·DateJan 21, 2010

Genomic surveillance of pandemic H1N1

The BC Centre for Disease Control has launched a genomic surveillance project to study the evolution of the pandemic H1N1 flu virus in British Columbia. Researchers will compare the genetic sequences of BC's influenza viruses with those from other regions to understand how mass gatherings like the Olympics impact the virus' evolution.

Genetics helps to crack down on chimpanzee smuggling

A study published in BMC Ecology found that rescued chimpanzees in Cameroon are from the same region, suggesting local trade is a significant issue. The research also revealed that protected areas are being targeted for poaching, highlighting the need for conservation efforts to protect endangered subspecies.

SourceBMC (BioMed Central)·JournalBMC Ecology·DateJan 21, 2010

Large medical center reduces CT scans and patient radiation exposure through a simple, educational intervention

A study published in the American Journal of Roentgenology found that a simple educational intervention and routing patients to V/Q scanning or CTPA based on chest X-ray results significantly reduced CT scan usage and radiation exposure. The medical center saw a 20% reduction in radiation dose from 8.0 mSv to 6.4 mSv.

SourceAmerican College of Radiology·JournalAmerican Journal of Roentgenology·DateJan 21, 2010