Tag Archives: saliva

UCLA scientist uncovers biological clock able to measure age of most human tissues

Study finds women’s breast tissue ages faster than the rest of the body

Everyone grows older, but scientists don’t really understand why. Now a UCLA study has uncovered a biological clock embedded in our genomes that may shed light on why our bodies age and how we can slow the process.

Published in the Oct. 21 edition of the journal Genome Biology, the findings could offer valuable insights to benefit cancer and stem cell research. (more…)

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New device can extract human DNA with full genetic data in minutes

Take a swab of saliva from your mouth and within minutes your DNA could be ready for analysis and genome sequencing with the help of a new device.

University of Washington engineers and NanoFacture, a Bellevue, Wash., company, have created a device that can extract human DNA from fluid samples in a simpler, more efficient and environmentally friendly way than conventional methods. (more…)

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Portable Diagnostics Designed To Be Shaken, Not Stirred

As medical researchers and engineers try to shrink diagnostics to fit in a person’s pocket, one question is how to easily move and mix small samples of liquid.

University of Washington researchers have built and patented a surface that, when shaken, moves drops along certain paths to conduct medical or environmental tests.

“This allows us to move drops as far as we want, and in any kind of layout that we want,” said Karl Böhringer, a UW professor of electrical engineering and bioengineering. The low-cost system, published in a recent issue of the journal Advanced Materials, would require very little energy and avoids possible contamination by diluting or electrifying the samples in order to move them. (more…)

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They Know The Drool

*The search for biomarkers of disease in spit*

It’s a researcher’s dream: a simple, noninvasive test to detect life-threatening cancer, heart disease, or other maladies while they’re still treatable.

A team of University of Minnesota researchers is in hot pursuit of that goal, using one of the simplest means imaginable: testing spit. They’ve discovered that conditions such as breast and oral cancer leak certain proteins into saliva, and if detected, such proteins can be “biomarkers” for the disease. (more…)

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