Botulinum toxin (BoNT) is used for a range of applications from treating chronic pain to reducing the appearance of wrinkles, but when injected it can diffuse into the surrounding tissue and give rise to adverse effects. A new study publishing March 17 in the open-access journal PLOS Biology by Linxiang Yin and Min Dong of Boston Children’s Hospital, USA and colleagues shows that a subtle modification of an FDA-approved form of BoNT enhances binding to the nerve cells and improves the drug’s potency and safety.
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