When the brain is affected by a stroke or diseases such as Parkinson's, neurons die with the consequent loss of motor, sensory, and cognitive abilities.
We have been taught that dead or damaged neurons in an adult brain cannot be repaired or replaced.
Today, however, thanks to years and years of research, a great discovery has been made and neurons could even be replaced.
In the journal Science a study was published by researchers at the University of Basel who discovered two new types of glial cells that could play a very important role in plasticity and in brain repair.
The researchers studied stem cells in the brain of an adult mouse, in the subventricular ventricular zone.
These particular cells are kept in a quiescent state by a receptor, but when they perceive a particular molecular signal they are stimulated to awaken and transform into new nerve cells.
This receptor is the activation key for these stem cells.
This discovery promises to become the future cure after trauma or the definitive cure for neurodegenerative diseases such as multiple sclerosis, for example.
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