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We have recently demonstrated that ependymal cells have stem cell properties, that they generate neurons in the intact brain and that they give rise to astrocytes which contribute to scar formation after injury.
Given the accumulating wealth of animal data, it is remarkable how little is actually known about whether we have new nerve cells added to our brain in adulthood.
Her favorite points in History are those when engineering had a profound effect on the people of the time, from the Roman aqueduct of Segovia, c.
Archaeologists have long used carbon-14 dating (also known as radiocarbon dating) to estimate the age of certain objects.
Graded expression of ephrins and their Eph receptors in certain regions of the nervous system direct the formation of topographic maps in the nervous system.
In addition to guiding growing axons, ephrin-A5 participates in neurulation.