- Category
- Health
- Published
- Tuesday, September 8, 2026 at 12:31 AM
- Publisher
-
ScienceDaily Health
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Scientists discover a hidden immune signal that helps spinal cords regrow
Quick Summary
A surprising immune system signal may help explain why zebrafish can regenerate damaged spinal cords so effectively. Researchers found that certain neutrophils release Il-4, which calms harmful inflammation and allows injured nerve fibers to grow again. Without these cells, healing stalled, but adding Il-4 restored regeneration. Scientists now want to know whether the same mechanism could someday be harnessed to improve spinal cord repair in humans.
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