Young Blood Can "Rejuvenate" Old Brain

Can this be the scientific basis for vampires staying young forever? Researchers at Stanford studying the effect of the age of blood donors have discovered something quite interesting (in mice, anyhow):

Researchers at Stanford University just published a study in Nature that may give new hope to those looking to stop the effects of aging on the brain. The study found that when blood from a young mouse was injected into an older mouse, that older mouse enjoyed what could almost be termed a "rejuvenation effect": it began producing more neurons, firing more activity across synapses, and even suffered less inflammation.

Interestingly, performing the reverse, in which a young mouse was injected with blood (or, more accurately, plasma, which is the parts of blood without blood cells), resulted in young mice with distinctly elderly attributes--increased inflammation, a reduction in the production of new neurons, that kind of thing.

Link (Photo: Rama/Wikimedia)

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