Brightsurf Science News & Current Events

December 04, 2011
Human cells build protein cages to trap invading Shigella
In research on the never-ending war between pathogen and host, scientists at the Pasteur Institute in Paris have discovered a novel defensive weapon, a cytoskeletal protein called septin, that humans cells deploy to cage the invading Shigella bacteria that cause potentially fatal human diarrhea.

Regeneration of specialized cells offers hope for treating chronic kidney disease
Damage to podocytes -- a specialized type of epithelial cell in the kidney -- occurs in more than 90 percent of all chronic kidney disease.

Farming crucial for threatened species in developing world
A number of threatened species in the developing world are entirely dependent on human agriculture for their survival, according to new research by the University of East Anglia.

Design could help Facebook members limit security leaks
A sign-up interface created by Penn State researchers for Facebook apps could help members prevent personal information -- and their friends' information -- from leaking out through third-party games and apps to hackers and identity thieves.

S-t-r-e-t-c-h-i-n-g electrical conductance to the limit
In research appearing in today's issue of Nature Nanotechnology, Nongjian Tao describes a method for mechanically controlling the geometry of a single molecule, situated in a junction between a pair of gold electrodes that form a simple circuit.

Global warming changes balance between parasite and host in fish -- new study
Worms infecting fish grow four times faster at higher temperatures and manipulate the behavior of fish.

New gene study of ADHD points to defects in brain signaling pathways
Pediatric researchers analyzing genetic influences in attention-deficit/hyperactivity disorder have found alterations in specific genes involved in important brain signaling pathways.

Discovery of a new reprogramming mechanism for tumor cells
A study by researchers Raul Méndez, ICREA research professor at the IRB Barcelona and Pilar Navarro at the IMIM describes a new reprogramming mechanism for the expression of genes responsible for turning a healthy cell into a tumor cell.

Senses of sophistication: Mosquitoes detect subtle cues finding food, spreading diseases
Researchers from Boston College and Brandeis University have unraveled the mystery as to how the malaria mosquito uses its sensory powers to find food and spread disease.

BGI reports study results on frequent mutation of genes encoding UMPP components in kidney cancer
BGI, the world's largest genomics organization, announced that a study on frequent mutation of genes encoding ubiquitin-mediated proteolysis pathway components in clear cell renal cell carcinoma is published online today in Nature Genetics.

Global carbon emissions reach record 10 billion tons -- threatening 2 degree target
Global carbon dioxide emissions from burning fossil fuels have increased by 49 percent in the last two decades, according to the latest figures by an international team, including researchers at the Tyndall Centre for Climate Change Research, University of East Anglia.

Bottom of the swimming league: Naked mole rat sperm
Naked mole rats live in a

New reports identify impacts of climate change on world's highest mountains
Findings from the most comprehensive assessment to date on climate change, snow and glacier melt in Asia's mountainous Hindu Kush-Himalayan region -- site of Mount Everest and many of the world's tallest peaks -- highlight the region's extreme vulnerability to climate change, as rising temperatures disturb the balance of snow, ice and water, threatening millions of mountain people and 1.3 billion people living downstream in Asia's major river basins.

Singapore and China scientists perform first Asian genome-wide association study on spine disease
Singapore and China scientists, headed by Dr. Liu Jianjun, Senior Group Leader and Associate Director of Human Genetics at the Genome Institute of Singapore and Dr.

Study identifies mechanisms cells use to remove bits of RNA from DNA strands
When RNA component units called ribonucleotides become embedded in genomic DNA, they can cause problems for cells, but not much is known about the fate of these ribonucleotides.

Inhibitors of infamous Ras oncogene reported by Genentech researchers at ASCB annual meeting
Genentech drug discovery team has uncovered chink in molecular armor of Ras, most commonly occurring oncogene.
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