Olfactory neurons, the cells that carry information about scents to the brain, are surrounded by caretaker cells that nourish and insulate them. Unlike other cells in the brain or spinal cord, olfactory neurons can regenerate, thanks in large part to their able assistants.
A new study shows that these service-oriented cells, called olfactory ensheathing glia, can also build bridges in damaged spinal cords.
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