science newsletter: Science News SciGuru.com

Τρίτη 17 Σεπτεμβρίου 2013

Science News SciGuru.com

Posted: 16 Sep 2013 02:11 PM PDT

Cancer tumors almost never share the exact same genetic mutations, a fact that has confounded scientific efforts to better categorize cancer types and develop more targeted, effective treatments.

In a paper published in the September 15 advanced online edition of Nature Methods, researchers at the University of California, San Diego propose a new approach called network-based stratification (NBS), which identifies cancer subtypes not by the singular mutations of individual patients, but by how those mutations affect shared genetic networks or systems.

Biologists Discover New Method for Discovering Antibiotics

Posted: 16 Sep 2013 02:07 PM PDT

Biologists at the University of California, San Diego have developed a revolutionary new method for identifying and characterizing antibiotics, an advance that could lead to the discovery of new antibiotics to treat antibiotic resistant bacteria.

The researchers, who published their findings in this week’s early online edition of the journal Proceedings of the National Academy of Sciences, made their discovery by developing a way to perform the equivalent of an autopsy on bacterial cells.