Researchers at Cambridge University have achieved a significant advancement in neural regeneration using laboratory-grown brain and spinal cord organoids. The breakthrough demonstrates that nerve damage previously considered irreversible may be treatable through targeted hormone therapy. Using three-dimensional tissue models grown from human stem cells, the Cambridge team successfully created functional neural circuits capable of transmitting electrical signals and triggering muscle contractions. The research reveals that human neurons progressively lose their regenerative capacity during development, transitioning from near-complete regeneration in embryonic stages to minimal regrowth in adult neurons. However, the study shows this decline is not permanent. When treated with thyroid hormone therapy, adult neurons in the organoid models demonstrated a remarkable 10-fold increase in nerve fiber regrowth. Dr. Stefano Patani and his team believe these findings could unlock new therapeutic strategies for treating paralysis, spinal cord injuries, and neurodegenerative diseases. Read the full article on GMJ Newsroom.
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