Authors: George Rajna
Quantum criticality must have played a crucial role in the origin of life say researchers who have found its hidden signature in a wide range of important biomolecules.  A Harvard researcher seeking a model for the earliest cells has created a system that self-assembles from a chemical soup into cell-like structures that grow, move in response to light, replicate when destroyed, and exhibit signs of rudimentary evolutionary selection.  New research led by Harvard Medical School reveals a critical step in a molecular chain of events that allows cells to mend broken DNA.  Now, Barton's lab has shown that this wire-like property of DNA is also involved in a different critical cellular function: replicating DNA.  Researchers have introduced a new type of "super-resolution" microscopy and used it to discover the precise walking mechanism behind tiny structures made of DNA that could find biomedical and industrial applications.  Genes tell cells what to do—for example, when to repair DNA mistakes or when to die—and can be turned on or off like a light switch. Knowing which genes are switched on, or expressed, is important for the treatment and monitoring of disease. Now, for the first time, Caltech scientists have developed a simple way to visualize gene expression in cells deep inside the body using a common imaging technology.  Researchers at The University of Manchester have discovered that a potential new drug reduces the number of brain cells destroyed by stroke and then helps to repair the damage. 
Comments: 42 Pages.
[v1] 2017-04-10 13:25:43
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