[THE INVESTOR] A research team in the U.S. proved that Botulinum toxin, often injected for medical purposes, moves around neurons, raising safety concerns, according to Science Daily Tuesday.

The University of Wisconsin’s research team extracted nerve tissues from rats and placed the extracts in a microfluidic device for observation, said Science Daily, adding that the team witnessed and caught on camera the toxin floating around neurons. 

The result raises concerns as the toxin could reach the central nervous system, the research team warned.

Botulinum toxin is made by one of the most toxic bacteria Clostridim, and when injected it paralyzes and shrinks muscles.

The team may begin another round of research focused on developing a safe drug that can stop the toxin from moving, Edwin Chapman, professor of neuroscience at the University of Wisconsin, was quoted as saying.

By Kim Bo-gyung/The Korea Herald (lisakim425@heraldcorp.com)