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Artificial Platelets can Speed Up Formation of Clots in Trauma Victims

by Kathy Jones on July 1, 2014 at 11:28 PM
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 Artificial Platelets can Speed Up Formation of Clots in Trauma Victims

Researchers are hoping to develop artificial platelets that can help natural blood platelets to form clots faster, thereby saving the lives of soldiers and victims of severe trauma.

In preclinical tests led by a Case Western Reserve University researcher, the artificial platelets, called "hemostatic nanoparticles," when injected after blast trauma dramatically increased survival rates and showed no signs of interfering with healing or causing other complications weeks afterward.

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"The nanoparticles have a huge impact on survival—not just in the short term, but in the long term," said Erin Lavik, an associate professor of biomedical engineering at Case Western Reserve. Other researchers had raised concerns that the foreign matter would interfere with healing, or form free-floating clots, but "we saw none of that."

The research, published in the Proceedings of the National Academy of Sciences this week, show the survival rate of mice models of blast trauma treated with the nanoparticles increased to 95, compared to 60 percent for those untreated.
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Also, no unwanted side effects, such as accumulation of the nanoparticles, clot formation or aberrant healing, were found during examinations one ands three weeks after the injection.

Lavik worked with Margaret M. Lashof-Sullivan, Erin Shoffstall and Kristyn T. Atkins, of Case Western Reserve; Nickolas Keane and Cynthia Bir of Wayne State University and Pamela VandeVord of Virginia Tech.

Explosions account for 79 percent of combat-related injuries and are the leading cause of battlefield deaths, according to researchers at Veterans Affairs hospitals and the federally run Uniformed Services University of the Health Sciences.

The primary blast wave, flying shrapnel and being thrown to the ground cause the lungs, liver, kidneys and other organs to hemorrhage and bleed uncontrollably.



Source: Eurekalert
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