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Immune cell plays good cop, bad cop

Depending on where a neuron is injured, immune cells can either help or harm

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3:54pm, September 16, 2008
Talk about a mixed blessing. A pair of new studies shows that immune cells known as macrophages can do an injured neuron good, or can impart further harm.

As the real estate axiom about location predicts, the outcome partly depends on where the neuron is injured. A neuron that controls motion or feeling starts out in the brain, runs down the spinal cord and eventually connects with muscles, skin or other orga
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