Dramatic improvement in Parkinson disease symptoms following intranasal delivery of stem cells to rat brains

Successful intranasal delivery of stem cells to the brains of rats with Parkinson disease yielded significant improvement in motor function and reversed the dopamine deficiency characteristic of the disease. The promising findings highlight the potential for a noninvasive approach to cell therapy delivery in Parkinson disease -- a safer and effective alternative to surgical transplantation of stem cells.

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