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Science News for December 19, 2010


Researchers discover human immune system has emergency backup plan

The innate immune system deploys two effective strategies to deal with invasive bacterial infections, including an emergency backup plan involving interleukin-1 beta (IL-1β), which stimulates white blood cell production. However, this backup system can also lead to chronic inflammation and organ damage if not managed properly.

SourceUniversity of California - San Diego·JournalNature Immunology·DateDec 19, 2010
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Skin rash associated with better outcomes in lung cancer patients

Patients who develop an acne-like skin rash after starting chemotherapy and cetuximab treatment have better overall survival, progression-free survival, and response rates compared to those without a rash. The study suggests that an early skin rash could be a predictor of treatment success in lung cancer patients.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateDec 19, 2010

Scientists take plasmon lasers out of deep freeze

Researchers at UC Berkeley have developed a new technique that allows plasmon lasers to operate at room temperature. This achievement is a major step towards applications for plasmon lasers in single-molecule biodetectors, photonic circuits, and high-speed optical communication systems. The scientists were able to enhance the emission ...

SourceUniversity of California - Berkeley·JournalNature Materials·DateDec 19, 2010

Scientists decipher 3 billion-year-old genomic fossils

A team of scientists at MIT has deciphered 3 billion-year-old genomic fossils using modern-day genomes. The study reveals that the collective genome of all life underwent an expansion between 3.3 and 2.8 billion years ago, resulting in 27% new gene families.

SourceMassachusetts Institute of Technology, Department of Civil and Environmental Engineering·JournalNature·DateDec 19, 2010

The genetic basis of brain diseases

A team of scientists identified a set of brain proteins that accounts for over 130 brain diseases, including Alzheimer's and Parkinson's. The study provides a new way to study the evolution of the brain and behavior, and opens paths toward tackling these diseases.

SourceWellcome Trust Sanger Institute·JournalNature Reviews Neuroscience·DateDec 19, 2010