Thursday, October 17, 2013

New urine test to detect blood clots

Scientists have developed a simple urine test to detect dangerous blood clots, which can cause life-threatening conditions such as strokes and heart attacks.
In a new study published the lead author  describes the results of the urine test on laboratory mice.

Blood clots - clumps of platelets and fibrin proteins - can threaten to choke off blood flow and lead to a wide range of serious and sometimes fatal conditions including atherosclerosis and stroke.

Usually, blood clots are a good thing. They form a plug that stops the bleeding after an injury. But sometimes, a clot forms when it really isn't needed, such as when a person sits too long on a long-distance flight and develops "deep-vein thrombosis."

In that case, a clot forms in the leg, blocking blood flow and causing leg pain. But it also can dislodge and move throughout the body to the heart or even the brain, which is life-threatening.

Diagnosing a blood clot, or thrombosis, is tricky, however, and current clinical tests aren't always reliable.

Researchers wanted to develop a simple and more reliable way to test for these obstructive blood clots.

They describe development and testing of "synthetic bio-markers" - lab-made materials for detecting what is going on in the body.

They added small pieces of proteins called peptides onto nano-materials that are similar to those already approved and used in the clinic.

They injected the tiny nano-materials into mice, which are stand-ins for humans. The peptides got chopped up if a blood clot was actively forming in the mice, and those peptide fragments were detected in a simple urine test.

"Our results demonstrate that synthetic biomarkers can be engineered to sense vascular diseases remotely from the urine and may allow applications in point-of-care diagnostics," the researchers said.


ps- this is only for information, always consult you physician before having any particular food/ medication/exercise/other remedies.
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