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Young blood rejuvenates old brains

Age-related cognitive decline occurs in many mammals, including humans, resulting from a decline in hippocampal function, and it is associated with reduced synaptic plasticity in hippocampal circuits. In this issue of Nature Medicine, a new study shows that cognitive impairment observed in aged mice is largely reversible following exposure to the blood of young mice.

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Figure 1: Young mouse blood is able to rejuvenate aged mouse brains.


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Correspondence to Steven M Paul.

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Paul, S., Reddy, K. Young blood rejuvenates old brains. Nat Med 20, 582–583 (2014).

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