Botox Effects Are Far-Reaching

Botox (Botulinum neurotoxin Type A) has lasting effects on muscles far away from the injection site, says a new study from Massachusetts General Hospital in Boston that was published in the journal Anesthesia & Analgesia.

When the scientists injected Botox into the hind legs of mice, the immediate muscles were completely paralyzed for four days, as expected. The surprising result was the effect on the other hind leg that wasn't injected. It had a lower twitch response to electric stimulation. Sixteen days later, both muscles continued to show weakened function.

While Botox is commonly used to ease wrinkles and the effects of aging on the face, scientists have continued to study its ability to work in other medical ways, such as relieving migraine headaches. Researchers suspect that this latest discovery could have an impact in prepping patients for surgery and helping their surgeons manage their patients' muscle reactions.

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