This Week in Science

In Science this week, a team from the Cincinnati Children's Hospital Research Foundation reports on the discovery that the interaction between a microRNA known as let-7 and a gene called lin-41 is partly responsible for why aging neurons lose the ability to regenerate. The scientists found that in Caenorhabditis elegans, let-7 inhibits the expression of lin-41, which helps promote neuron regeneration in older anterior ventral microtubule neurons.

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