The role of neurons in the repair of damaged
brain tissue after an injury has been the subject of extensive research in this
field. California brain injury lawyers have always known that certain types
of brain cells have the ability to exacerbate the injury. However, a new study finds that these
brain cells actually play a much more complex role in brain injury than earlier
thought. The study finds that
certain kinds of brain cells are actually needed to help stop bleeding and help
rejuvenate the cells.
These particular brain cells are known as
astrocytes, and are believed to rush to the site of the injury after one has
occurred. However, their role is now
believed to be much more beneficial than previously thought.
The new study that was published in the journal
Nature recently, especially focused on the replacement of damaged or lost brain
neurons after an injury, to restore the function of the brain. Once brain cells have been damaged, they
cannot multiply. Therefore, the
focus of many studies has been to trigger the production of brain stem cells,
in order to produce new neurons to replace the damaged cells.
This process has been difficult because the
brain stem cells also produce astrocytes and oligodendrocytes. These cells together are known as glial
cells. Although these cells are
beneficial, the increased number of astrocytes after a brain injury has been considered
to have a negative effect on patients’ chances of healing after a brain injury.
However, the
researchers found that astrocytes that are produced in one particular niche of
the brain, called the sub ventricular zone, are different from those that are
produced in other regions of the brain, in that these astrocytes rush to the
injured area to stop bleeding, reduce scarring and allow recovery.
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