Injections of hydrogel will help the brain to recover from a stroke

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<pre>Injections of hydrogel will help the brain to recover from a stroke
Micrograph of the restored part of the brain of the experimental mouse

Timely medical care in developed countries has steadily reduced the number of stroke victims, but survivors face almost the worst possible fate – a very long, painful and inefficient recovery. At the University of California, Los Angeles, as opposed to the existing methods, an alternative was suggested – dot filling the damaged parts of the brain with hydrogel, which will give impetus to the regeneration of tissues.

In the usual situation, brain cells that died from stroke are “disposed” by the body, and in their places remain emptiness. Through them, blood vessels or neurons can not pass, which slows the recovery of the brain. But what if you inject hydrogel with nutrients and anti-inflammatory drugs into the cavity? We get a “garden” in which the surrounding healthy tissues can grow and develop, filling the void.

Experiments on mice showed the principle validity of the authors of the method. Scars from a stroke in rodents completely overgrew after 16 weeks, the hydrogel dissolves harmlessly in the body, the axons in the new tissue worked and signaled. “Cured” mice showed improved motor skills when searching for food in comparison with the control group without treatment. Alas, until the full recovery of the brain after a stroke in the experimental mice did not reach.

This is the narrowest and most complex place of the new technology, scientists are not yet able to understand in detail how the connections in the brain are restored during the regeneration of tissues. Reflexes, personal experience, acquired skills – how to reliably return all this to a living creature after a stroke, rather than just relieve its disability? But American scientists hope that they will soon find answers and will be able to move on to work on the healing of a person.

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