Poorer Memory due to Declining Number of Adult Stem Cells?

Research conducted by Cold Spring Harbor Laboratory in New York State, USA has shed light on why the brain  produces fewer and fewer neurons with age, resulting in a poorer memory. Associate Professor Grigori Enikolopov, who led the research team, said: “That the production of new neurons declines with age has been well established, but why this happens has been a matter of debate.”  He added that  adult stem cells in the brain remain dormant for a prolonged time until they are activated. They divide rapidly giving rise to progeny that differentiate into neurons. After that, the stem cells “transform” into non-neural cells. Thus, the study has suggested that the decline in neurons is attributed to the shrinking number of adult stem cells in the brain.

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