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Researchers suggest osmotic therapy device for spinal cord injuries

California [US], Aug 16 (ANI): A team of researchers has found an osmotic therapy device that helps in gently removing the fluid from the spinal cord to reduce swelling after an injury.

ANI Aug 16, 2020 20:45 IST googleads

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California [US], Aug 16 (ANI): A team of researchers has found an osmotic therapy device that helps in gently removing the fluid from the spinal cord to reduce swelling after an injury.
Published in Frontiers in Bioengineering and Biotechnology, a group led by Marlan and Rosemary Bourns College of Engineering Jacques S. Yeager, Sr. Professor of Bioengineering Victor G. J. Rodgers and UCR School of Medicine biomedical sciences professor Devin Binder have described the new device, which can eventually be scaled up for testing in humans. The testing was now done on rats and has shown good results.
The device consists of a tangential flow module supporting a semipermeable membrane connected to a hydrogel that rests on the exposed spinal cord. Artificial cerebrospinal fluid containing the protein albumin to initiate osmosis passes across the device side of the membrane, transporting water molecules from the spinal cord.
Both fluids drain into a small chamber and cycle again through the device to remove more water. The amount of water removed is small compared to the amount of osmolyte, allowing for recirculation.
The authors have found in previous studies that relatively small increases in the percent of water content can cause significant swelling in the brain. These experiments showed that the osmotic therapy device removed enough water to prevent brain swelling and was capable of removing even more. They also found that removing the excess water quickly enough in brain swelling improved neurological outcomes. This is a key hope for the spinal cord device as well.
The team plans to continue improving the device through longer experiments on rats before eventually moving on to human trials.
Together with biomedical sciences professor Byron Ford, Rodgers is developing a similar device that drains fluid directly from the brain and introduces neuregulin-1, a molecule produced naturally by the body to regulate communication between cells in the brain and heart and promote their growth, to improve treatment and reduce the damage of severe strokes. (ANI)


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