Sunday, January 23, 2011

How To Buld A Homemade Horse Sleigh

WHAT 'YOUR OLD CANCER?

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Scientific American (How Old is your cancer?)
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A patient receives a diagnosis of pancreatic cancer has only a 5% chance of surviving for five years, a heartbreaking prognosis that scientists have long struggled to understand.
Scientists at Johns Hopkins University have sequenced the genome of seven people who had died from pancreatic cancer in late stage. Cancer cells are cells that have accumulated multiple mutations, particularly at the expense of specific genes that code for proteins critical in controlling proper cell cycle. Through the analysis of tumor cells to such patients the scientists were able to literally trace back over time, through mathematical models and to rebuild some sort of family tree of the mutations that these cells had undergone.
In February 2010 researchers at the University of California, Los Angeles, compared RNA found in the saliva of 60 patients who had been diagnosed with pancreatic cancer is curable with the saliva of 30 individuals without cancer and have identified four RNA together could identify correctly 90 percent of the tumor. And in March 2009, the publication of Northwestern University researchers have developed an optical technology that can recognize the various stages of pancreatic cancer with 95 percent sensitivity. That is to recognize (at least from what I understand, someone correct me if I'm wrong) the different stages of transformation that the cells undergo as they accumulate mutations that cause tumor formation. The technique uses light scattering to detect changes in the cells of the duodenum.

course, these technologies are not yet commercially available, but early detection through optical tests along with blood or saliva should allow in the future to detect the disease early.
Sources: Scientific American
Posted by admin at 3:44 AM

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