It is known that nerves in the central nervous system of adult mammals do not usually regenerate when injured.  However, the granule cell, a nerve cell located in the cerebellum, is different. When its fibres, called parallel fibres, are cut, rapid regeneration ensues and junctions with other neurons called synapses are rebuilt; the precise mechanism for which is unclear.  Now, a study from researchers led … Continue reading Key molecule in the elusive regeneration of cerebellum synaptic connections identified.