Rejuvenating the brain with stem cells

scientists at the Center for Regenerative Therapies of TU Dresden (CRTD) wanted to investigate if increasing the number of stem cells in the brain would help in recovering cognitive functions, such as learning and memory, that are lost during ageing. To investigate this, the research group led by Prof. Federico Calegari used a method developed in his lab to stimulate the small pool of neural stem cells that reside in the brain in order to increase their number and, as a result, to also increase the number of neurons generated by those stem cells. Surprisingly, additional neurons could survive and form new contacts with neighbouring cells in the brain of old mice. Next, the scientists examined a key cognitive ability that is lost, similarly in mice and in humans, during ageing: navigation.

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