Whether nerve cells are able to regenerate?

Neuroscientist Dr. Doping talks about diseases of the nervous system, neurogenesis and experiments on nerve cells divide.

A nerve cell, or neuron, is a complex structure having a very developed morphology. Typically, there are several nerve cells branched processes (axons and dendrites), by which the contact with other neurons or, for example, the muscle fibers. Loss of contact underlies a number of diseases of the nervous system. To take its place in the nervous system, the cell must pass a difficult path, to find the right partners for the contact, form a plurality of links.

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It is known that nerve cells do not divide. Artificial attempts to get them to share led to the fact that neurons died. Apparently, the process itself is a division forbidden for them, because otherwise the nerve cell can not perform its function, because it will need to first lose all your contacts and then restore them. Therefore, to say that the nerve cells do not regenerate.

Nevertheless, in our brain exists the formation of new nerve cells from progenitor cells - the so-called neurogenesis. Two of the most well-characterized regions of neurogenesis is the dentate gyrus of the hippocampus and the sub-ventricular region. In these areas, new nerve cells are formed every day, which then migrate to those parts of the brain, where they are to perform their function. But still we do not know exactly what is needed and what is the function of neurogenesis start-nerve cells.